1
st
edition EX38.03

EX38


This catalogue shows the product in the most standard congurations.
Please contact our Sales Dpt. for more detailed information or special requests.

All specications of this catalogue refer to the standard product at this date.
Walvoil, oriented to a continuous improvement, reserves the right to
discontinue, modify or revise the specications, without notice.




Walvoil nel mondo - 
Sede principale, Filiali e Ufci di rappresentanza

Walvoil S.p.A. - Headquarters
Via Adige, 13/D . 42124 Reggio Emilia . Italy
Phone +39 0522 932411 . info@walvoil.com - www.walvoil.com
Business Unit Hydrocontrol
Via San Giovanni, 481 . 40060 Osteria Grande
Castel S. Pietro Terme . Bologna . Italy
Phone +39 051 6959411
Galtech Site
Via Portella della Ginestra, 10 . 42025 Cavriago
Zona Industriale Corte Tegge . Reggio Emilia . Italy
Phone +39 0522 932411
AustrAlAsiA
Walvoil Fluid Power Australasia Pty Ltd
13 Vanessa Way . Delahey VIC 3037 . Melbourne . Australia
TEL. 0061 458 918 750 . australasia@walvoil.com
BrAsile . Br Azil
Interpump Hydraulics Brasil Ltda – Walvoil Division
Gilberto de Zorzi, 525 . Forqueta Caxias do Sul (RS)
TEL. 0055 54 3223 2373 . infobrasil@walvoil.com
CAnAdA
Galtech Canada Inc.
3100, Jacob Jordan . Terrebonne . Qc J6X 4J6 . Canada
Phone +1 450 477 1076 Ext:225 . info@galtechcanada.com
CinA . ChinA
Walvoil Fluid Power (Shanghai) Company Limited
24, Lane 129, Dieqiao Road . Pu Dong . Kanqiao Industrial Zone Shanghai (201319)
TEL. 0086 21 60979800 . info@walvoil.com.cn
Guangzhou Bushi Hydraulic Technology Ltd
Shangwei Shaheshe, Yuehu Village . Xiancun, Xintang Town . Zengcheng City
511335 Guangzhou . Guangdong Province China
Phone +86 021 52380695 . fareast@hydrocontrol-inc.com
CoreA . KoreA
Walvoil Fluid Power Korea Ltd. - SOUTH KOREA
80-15, Oseongsandan 1Ro, Oseong-Myun, Pyungtaek, Kyungki . Korea 451-872
TEL. +82 31 682 6030 . info@walvoil.co.kr
FrAnCiA . FrAnCe
Walvoil Fluid Power France
362 rue de Bretagne . 44540 Vritz
TEL. 0033 2 41 94 41 06 . france@walvoil.com
indiA
HC Hydraulic Technology(P) LTD
A5(B) Ngef Ancillary Indl. Estate . Whiteeld Road
Mahadevpura (Po) . Bangalore 560048 . India
Phone +91 080 40454707 . info@hydrocontrol-india.com
Walvoil Fluid Power (India) PVT. LTD.
No 23, Doddanakundi Industrial Area Mahadevapura Post Behind Graphite India
Bangalore 560 048
TEL. 0091 80 41842900 . info@walvoil.co.in
u.s.A.
Hydrocontrol Inc.
1109, Technology Drive . Red Wing . MN 55066 . U.S.A.
Phone +1 651 212 6400 . usa@hydrocontrol-inc.com
Walvoil Fluid Power Corporation
4111 North Garnett Tulsa, OK 74116, USA
TEL. 001 918 858 7100 . info@walvoiluidpower.com




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







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
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

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




         


               





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    
    


    

    
   

    

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
    

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
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
  
  
  

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
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              
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2
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Workport A
54
1
Workport B





























Internal press. reducing valve
LS signal MRV
Pump compensator
LS signal Dump valve
T
P
L.S.
T1 (drain line)
Post local compensator
A1 B1 A2 B2 A3 B3 A4 B4
A1 B1 A2 B2 A3 B3 A4 B4
T
P
L.S.
Internal press. reducing valve
Full flow dump valve
Pre local compensator
LS signal MRV
Pump compensator
T1 (drain line)
Post local compensator
PRE-COMPENSATED SECTION
     









 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

    
    
    

                



 

1
2
3
P
T
B
A
B
A
B
A



















Tie rod
Nut
Washer
Tie rod kit
    
  

  
  
  
  
  
  
  
  
  



     
          
          
          
P
T
A
B
A
A
B
B
15
12
17
M10 N°3 fixture
111.5
3898
106.4
19
20
26
82
81
51
4.5 30
49
38
38
39 40
40
55.5
111.5
123
115.5
16°
16°
40.5
114.5
12
X (171)
51
111.5
12
2438
M8
80.5 74.5 40.580.25
M8
43
Y (217)
T1
A
A






     
         
          
         
83.5
63.4
106.4
19
20
26
8281
51
83
82
4.5 30 49
38 38
49
Y (223.5)
T1
165 63.4
83.5
35.5
31
67.5
86
154.7
19°
19°
65
111.5
111.5
31
116
154.7
30
6838
98
M8
12
17
M10 N°3 fixture
X (171)
15 18
43122
39 40
40
A
A
P
T
A
B
A
A
B B







0
5
10
15
20
25
30
pressure [bar]
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
flow [l/m]


0
50
100
150
200
250
300
350
pressure [bar]
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
flow [l/m]


0
1
2
3
4
5
6
7
8
pressure [bar]
0 10 20 30 40 50 60 70 80 90 100 110 120 130
flow [l/m]






D
0
20
40
60
80
100
120
Flow [l/min]
12 14 16 18 20 22 24 26
Pressure [bar]
Spool 8080
Spool 6565
Spool 4040
Spool 2525
Spool 1010



D
0
40
30
20
10
50
60
70
80
90
100
flow [l/min]
0-1-2-3-4-5-6-7
+1 +2 +3 +4 +5 +6 +7
stroke [mm]
600 740 880 1020 1300
12V current [mA]
300 370 440 510
1160
580 650
24V current [mA]
6,2 9 11,8 14,5 17,3 20,1
Hydraulic pilot [bar]
stroke [mm]
12V current [mA]
24V current [mA]
Hydraulic pilot [bar]
Spool 9090
Spool 8080
Spool 6565
Spool 4040
Spool 2525
Spool 1010
1300 1160 1020 880 600
650 580 510 440
740
370 300
20,1 17,3 14,5 11,8 9 6,2







+1
+2 +3 +4 +5 +6 +7
stroke [mm]
680 760 840 920
12V current [mA]
340 380 420 460
1000
500
24V current [mA]
7,8
600
300
6 9,6 11,4 13,2 15
Hydraulic pilot [bar]
0
40
30
20
10
50
60
70
80
90
100
flow [l/min]
0
Spool 8080
Spool 6565
Spool 4040
Spool 2525
Spool 1010
+11,5
min. 1800
min. 900
min. 30
FLOAT POSITION



0
40
30
20
10
50
60
70
80
flow [l/min]
0-1-2-3-4-5-6
+1 +2 +3 +4 +5 +6
stroke [mm]
600 750 900 1050
12V current [mA]
300 375 450 525
1200
600
24V current [mA]
7,4 10,2 13 15,9 18,7
Hydraulic pilot [bar]
stroke [mm]
12V current [mA]
24V current [mA]
Hydraulic pilot [bar]
Spool 6565
Spool 4040
Spool 2525
Spool 1010
1200 1050 900 600
600 525 450
750
375 300
18,7 15,9 13 10,2 7,4






0
50
100
150
200
250
300
350
400
0 10 20 30 40 50 60 70 80
flow [l/m]
pressure [bar]


0
1
2
3
4
5
6
7
0
10 20 30
40
50
60
70
80
flow [l/m]
pressure [bar]






 
  
 
  
  
  
  
      

P
5
2
3
1 4
T
B
A
B
A
B
A
   
 

 
 

 
 
 
 
  
 

 
 

 
 
 




   




















T P








T P
T P
T P
T P
T P
V1A
V2A
V10C
V11C
V4B
V3B
V7B
P
T
C
A
B

       














V1A
V10C
V4B
P
T
C
A
B
 

 

 


 

 
 

 

 

 




 

 

 
 

 

 

 

 

V1A
V10C
V3B
P
T
C
A
B
V4B
V11C
P
T
C
A
B
V2A






V10C
V7B
P
T
C
A
B
V2A




C
B
V11C - LS electric dump valve
Coil
V7B - Full flow electric dump valve
Coil



























 













  



 


  



 


  










  






















LS
P
T
M
V4B
V1A
V11C
LS
P
T
M
V1A
V10C
V7B




P
T
433085001
430085004
430000017
1
3
2
P
T
433085002
430085012
1
2


   
 
 
 






   
 
 











  
  
  
  
  
  
  




      
B
A
2
1
5
7
6
3
4
4
   
 

 
 
 
 
 

 
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 







 
 

T
P A B
T
P A B
T
P A B







   














Spool actuation - Side A



44.5
6
38.5
Ø6
25
80.25
57.5
67.5
60
M8
M8





   



















94.3
86
103
108.1
103
108.1

 
 


   


















74
69
69
74
35.5
35.5
1/4”G - 9/16”UNF
23.5
1/4”G - 9/16”UNF
23.5
69 69
35.5
40.5
35.5
40.5
23.5
23.5
1/4”G - 9/16”UNF
1/4”G - 9/16”UNF
81
69
69
81
35.5
35.5
1/4”G - 9/16”UNF
23.5
1/4”G - 9/16”UNF
23.5





   

































86
103
86
94.3
86
94.3
94.3
74.5
94.3
85.1
94.3
108.1
94.3
108.1











Spool return action - Side B










   





































40.5
74.5
55
103
84





   











94.3
70.9
103
108.1





   






















103
70.9
94.3
70.9
94.3
85.1
94.3
108.1















   






 
 

 
 
 
 
 
 
 



 

 
 
 

 
 
 
 
 

 
 

 
 


94.3
111.5










  

   
   
    
    
    
    
  
  
  

Solenoid - Side A
Solenoid - Side B



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




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
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

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

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
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







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




 




    



     
     

     




     
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
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





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
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








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

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

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
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





B
A
Body arrangement



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


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
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
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 
 
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
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 



 

 


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 
B
A
P
P
Local LS
relief valve
B
A
P
Additional
port
B
A
P
Local flow
limiter
B
A
P
B
A
P
Local LS
relief valve
B
A
P
Additional
port
B
A

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

L.S. relief
valve
A
B
L.S. relief
valve
A
B
L.S. relief
valve
A
B
L.S. relief
valve
A
B
A
B
A
B
A
B
A
B
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



















A
B
Additional
Port
A
B
Additional
Port
A
B
Additional
Port
A
B
Additional
Port
























































A
B
A
B
A
B
A
B
Local LS
relief valve
A
B
Local LS
relief valve
A
B
Local LS
relief valve
A
B
Local LS
relief valve
A
B

































Additional
Port
A
B
A
B
Additional
Port
Additional
Port
A
B
Additional
Port
A
B






























Compensator
kit with local
flow limiter
A
B
Compensator
kit with local
flow limiter
A
B
Compensator
kit with local
flow limiter
A
B
Compensator
kit with local
flow limiter
A
B






    



















    




































  

1

   














   















   
















R - Reduced pressure port
T1
R - Reduced pressure port
T1
T1
T1
T1
R





   
   
 

   
   
  
   



   


   
   
   



B
A
B
A
B
A
P
T
P
T
B
A
B
A
B
A
B
A
B
A
T1 (SL)
Connect to Tank
LS2 (SL)
LS1 (MT)
Connect to Pump
LS1 (SL)
LS2 (MT)
T2 (MT)
Connect to tank
T1 (MT)
P
P
LS1 (MT)
M
B1 A1
B2 A2 B3 A3 B4 A4
B1 A1
B2 A2 B3 A3 B4 A4
T
P
T
LS1 (SL)
M
LS2 (MT)
LS2 (SL)
R
R
R
T1 (MT)
T2 (MT)
T1 (SL)




P
T
P
T
T
HPCO
P
T
B
A
B
A
B
A
B
A

    
   

  

    
   




    
  
   
   
   
    



P
P
HPCO
T
T
T1
R
LS
T1
R
M
LSM
B1 A1 B2 A2
B1 A1 B2 A2







     




 
  
  
  


  
  
  
  
  
  




 
  
  

 

 

 

 

P
5
4
3
1 2
T
B
A
B
A
B
A





     

  
  
  
  
  
  

  
  
  
  
  
  

  
  


 
 
  
  
  

  
  
  
  

 
  

  
  
  
  

 
  
  
  
  
  




 




 
2
1
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3
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A




     

 
 
  
   
  

  
  
  
 
 
 
 
 
 
   
   
   
 
 
 
   

  
  
  
  
  

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 
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 
 
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 
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 
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 
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 
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  
  
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  
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 
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 
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   
   
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   
   
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
 

 
 

 

 

 
 


 

 






Plug - Hex.27
60 Nm
Plug - Hex.5
20 Nm
Plug - Hex.5
20 Nm
Plug - Hex.8
60 Nm
Plug - Hex.27
60 Nm
Plug - Hex.4
10/15 Nm
Electrovalve - Hex.24
30 Nm
Plug - Hex.27
60 Nm
Plug - Hex.8
45/50 Nm
Plug - Hex.24
40/45 Nm
Electrovalve - Hex.24
30 Nm
Plug - Hex.8
45/50 Nm
Nut - Hex.10
6.5/8.5 Nm
Valve - Hex.17
45/50 Nm
P
T









Plug - Hex.8
30/35 Nm
Screw - Hex.4
5/7 Nm
Auxiliary valve - Hex.15
35/40 Nm
Screw - Hex.3
2 Nm
Auxiliary valve - Hex.15
35/40 Nm
Plug - Hex.6
30 Nm
Plug - Hex.6
30/35 Nm
Plug - Hex.5
20/25 Nm
Plug - Hex.6
30 Nm
Plug - Hex.6
30 Nm
Plug - Hex.5
10/15 Nm








  

  

       

       















     

























        
        
           
           
    

     

















      
    
       
       
  

  
                
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C
A
B
D
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

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
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Made in Italy
00 08075 00
44 612
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

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
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
                
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                  
               
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                 
                
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                
                    
                   
                   
                   
                     
                  
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

              
                  
           

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               
         
       
               
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               
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





              
                 
                
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1
st
edition EX38.03

EX38


