A Polyhydron Group Company
ROTARY
DIRECTIONAL CONTROL VALVE
Model : 4RDL
Ref. No. D 06429
Release 12 / 2019
ENGINEERING - 1 of 4
78-80, Machhe Industrial Estate,
Machhe, Belgaum - 590 014. INDIA.
Phone : +91-(0)831- 2411001
Fax : +91-(0)831- 2411002
E-mail : polyhydron@gmail.com
Website : www.polyhydron.com
Rotary directional control valve are hand lever operated valves designed
for applications where,
1. Pressures are high
2. Internal leakages in the valve need to be negligible and,
3. Flow handled are very small.
These valves are available with open or closed crossover condition
while in operation.
Three mounting styles are designed to suit specific customer needs.
Section
Hydraulic symbol
A B
P T
A B
P
T
Closed
crossover (C)
Basic
symbol
Spool
type
Open
crossover (O)
Construction : Rotary disc type.
Mounting : Threaded and subplate body.
Mounting position : Optional.
Interface : Factory standard.
Flow direction : Refer spool type given above.
Flow handling capacity : Refer graph shown.
Operating pressures : Ports Open crossover Closed crossover
operating pressure (bar) operating pressures (bar)
P 700 500
T 10 10
A 700 500
B 700 500
Hydraulic medium : Mineral oil.
Temperature range : -20°C to + 80°C.
Viscosity range : 10 cSt to 380 cSt.
Fluid cleanliness required : ISO 4406 20/18/15 or better.
Mass (approx) : Model : 4RDL02*T 4RDL02*S 4RDL02*SS
in Kg : 1.5 1.6 2.1
Note : Torque required to operate the lever of closed crossover valve under pressure is approximately 14 Nm at 500 bar.
Torque required to operate the lever of open crossover valve under pressure is approximately 8 Nm at 700 bar.
Technical specifications
A B
P T
A B
P T
A B
P
T
A B
P
T
A B
P
T
A
B
P T P T
A
B
P T
Description
GC GO
EC EO
G
E
CC COC
A Polyhydron Group Company
D 06429 - 4RDL
ENGINEERING - 2 of 4
All rights reserved.
Subject to revision
Unit dimensions
Dimensions in mm.
45°
45°
58
15.5
15.5
58
82 ~
82 ~
23
23
23
23
P
A
T
B
80
58
40
P
A
B
T
A
P
T
B
0
11
22.5
34.5
46.5
69
0
8
20
32
40
Subplate mounting interface
(Factory standard)
Threaded body Subplate body
Ø4 Drill
7 deep min.
Ø5 max.
@ A, B, P & T.
107 ~
15.5
15.5
Ø6.6 Drill
thru 4 nos.
Ø54
Panel cutout details
M6x35L , 4 nos. Grade 12.9
Tightening torque 16 Nm
23
23
23
23
4 max.
Panel
G1/4 x 12 deep ports
@ A, B ,P and T
Ø 53
15
T
136 ~
102 ~
P
B
4
Ø3
96 ~
9
5.5
M6x12L , 4 nos. Grade 12.9
Tightening torque 16 Nm
Base mounting
M6x12L , 4 nos. Grade 12.9
Tightening torque 9.5 Nm
Panel mounting
Position 'B'
P A
B T
Position 'A'
P B
A T
136 ~
A Polyhydron Group Company
D 06429 - 4RDL
ENGINEERING - 3 of 4
All rights reserved.
Subject to revision
Unit dimensions
Dimensions in mm.
A
T
P
B
9
7.5 82 ~
54
60
61
32
140 ~
102 ~
Side subplate mounting body
Ø3
4
Position 'B'
P A
B T
52
Ø6.6 thru,
4 nos.
Position 'A'
P B
A T
82 ~
45°
45°
T
A
B
P
Side mounting subplate interface
(Factory standard)
0
6
16
26
32
0
9
21
33
42
Ø5 max.
@ A, B, P & T.
M6x12 deep,
4 nos.
Ø4 Drill
7 deep min.
Valve mounting S.H.C Screws M6x70L (4 nos.)
Grade 12.9. Tightening torque 16 Nm.
Ordering code
Threaded
4 Service ports
Subplate
Rotary directional control
valve lever operated
Size 02
4
E
RDL 02 T
T
S
D
Detented
Design code subjected to change.
Installation dimensions remain
same for design code 11 thru 19.
15
Spool
type
Closed crossover Open crossover
A B
P T
A B
P
T
A B
P T
A B
P T
A B
P T
A B
P T
A B
P T
A B
P
T
P
T
A B
P
T
C
Basic
Symbol
C O
C
E
G
Performance curve
Measured at temperature 40°C and with mineral oil of visocity grade VG 46.
Side subplate mounting
SS
A Polyhydron Group Company
D06429 - 4RDL
ENGINEERING - 4 of 4
All rights reserved.
Subject to revision
All valve fixing Screws are out of scope of supply.
Valve models 4RDL02HP**D-15 and 4RDL02HPT**D-15
are discontinued. For Rotary DCV with handpump refer
datasheet no. D10180 and D 10100 in pumps section.
