1
TP
A
11
13
12
A
T
P
Proportional Pilot Operated
Pressure Reducing Valve
SP4P2-B3
HA 5123
05/2012
Functional Description
7/8-14 UNF • pmax 350 bar (5076 PSI) • Qmax 60 L/min (15.85GPM)
The pressure valves SP4P2-B3 are pilot operated
screw-in cartridge proportional pressure reducing val-
ves designed as 3 way valves, i.e. with pressure protec-
tion of the secondary circuit.
The complete reducing valve consists of a body (2) with
thread 7/8-14 UNF, control spool (3), spring (4) and
pilot stage of SR1P2-A2 valve.
In the basic position the flow from the primary circuit
flows to consumer ports A. In this situation the spring
chamber is vented to Tank line through nozzle (5) and
(6).
When the DC current is applied to solenoid (10) at
spring (9) increases force to the seat (8) and it continu-
ously closes.
Build up pressure acts on spool (3) in spring chamber
(4) through orifices (6). Than the reduced pressure at
port A is continuously controlled and compared with
the pressure preset from pilot stage. If any control error
appears, the respective control action takes place and
the reduced pressure returns to its pre-set value. If pre-
ssure behind the valve increases due to the effect of
external load acting on the user, the control spool (3)
shifts further against the spring, the reducing metering
edge closes and the second metering edge opens. The
fluid passes through the „third way“ to port T. The con-
trol flow of the pilot stage valve (7) is also connected
to port T.
Pilot stage valve SR1P2-A2 (catalogue no. HA 5122)
can be ordered separately as a built-in proportional di-
rectly operated pressure relief valve. The main stage of
the valve can be also ordered separately – see spare
parts.
The valve body and the adjustment screw are zinc
coated.
Screw-in cartridge design
Pilot operated
Three pressure ranges
Pressure output proportional to DC current input
2
SP4P2-B3 / -
HA 5123
Ordering Code
Valve Dimensions Dimensions in millimeters and (inches)
Technical Data
Valve size B3
Cartridge cavity 7/8-14 UNF-2A
Maximum operating pressure at ports P bar (PSI) 350 (5076)
Maximum operating pressure at ports T* bar (PSI) 100 (1450)
Flow range L/min (GPM) 0 ÷ 60 (0 ÷15.85)
Hydraulic fluid
Hydraulic oils of power classes (HL, HLP) to DIN 51524
Fluid temperature range (FPM) °C (°F) -20 ...120 (-4 ... 248)
Ambient temperature range °C (°F) -20 ... 80 (-4 ...176)
Viscosity range mm
2
/s (SUS) 10 ... 500 (49 ... 2450)
Duty cycle % 100
Enclosure type to EN 60 529 IP 67 (IP 65)
Maximum valve tightening torque Nm ( lbf.ft) 50+5 (36.87+3.68)
Optimum dither control Hz 250
Maximum degree of fluid contamination Class 21/18/15 according to ISO 4406
M i n i m u m r e ac h a b l e p r e s su r e fo r
Q = 0 L/min
(0 GPM)
bar (PSI) ~ 6 (87)
Hysteresis % < 5
Weight kg (Ib) 0,595 (0.312)
Mounting position
When possible, the valve should be mounted with
solenoid faced down.
Valve body ( data shee HA 0018) SB-B3
*Pressure in T influences p = f(I) a p = f(Q) valve performance
Solenoid Technical Data
Type of coil V 12 DC 24 DC
Limit current A 1 0,6
Resistance at 20 °C (68 °F)
Ω
6,5 20,8
Quenching diode (E2, E4, E13) BZW06-19B BZW06-33B
Mu=[50+5 Nm (37+3.68 Ib.ft)]
Mu=[30+2 Nm (22+1.47 Ib.ft)]
Mu=[4+2 Nm (2.95+1.47 Ib.ft)]
Mu=[10+1 Nm (7.37+0.73 Ib.ft)]
Proportional Pilot Operated
Pressure Reducing Valve
7/8-14UNF
Pressure range
up to 120 bar (1740 PSI) 12
up to 210 bar (3046 PSI) 21
up to 350 bar (5076 PSI) 35
High performance H
Type of solenoid coil
E2 Connector EN 175301-803-A
with quenching diode
E4 Connector AMP Junior Timer with
quenching diode
E13 Connector Deutsch DT04-2P with
quenching diode
Other coils on demand see catalog HA8007.
Seals
V Viton ( FPM)
Nominal solenoid supply voltage
12 V DC 12
24 V DC 24
1 2
Seal kit (Main valve)
- see Spare Parts
1. Dualseal - PU
2. O-ring - Viton
3
HA 5123
p-I Characteristics Measured at ν = 32 mm
2
/s (156 SUS)
p-Q Characteristics Measured at ν = 32 mm
2
/s (156 SUS)
p = f (I), Q= 0 dm
3
. min
-1
(Port A close)
0 200 400 600 800 1000
100
150
50
300
350
200
250
3
1
2
400
0 120 240 360 480 600
(1450)
(2176)
(725)
(4351)
(5076)
(2901)
(3626)
(5801)
Current I [mA]
12V coil
24V coil
60 50 40 30 20 10 0 10 20 30 40 50 60
(725)
(1450)
(2175)
(2900)
(3626)
(4351)
(5076)
(5801)
Pressure range p bar ( )[ PSI ]
Flow Q (GPM)[L/min ]
(15.85) (13.21) (10.57) (7.95) (5.28) (2.64) 0 (5.28) (7.95)(2.64)
(10.57) (13.21) (15.85)
50
100
150
200
250
300
350
400
3 Pressure range 35
2 Pressure range 21
1 Pressure range 12
Pressure p [bar(PSI)]
4 Pressure range 35
3 Pressure range 21
2 Pressure range 12
1 Min. pressure (range 35)
Type of the Solenoid Coil
49,4(1.945)
19
(0.748)
37
(1.457)
29(1.142)
Coil example Solenoid Connector Type code
12 VDC Connector EN 175301-803-A with quenching diode C19B-01200E2-6,5NA
24 VDC Connector EN 175301-803-A with quenching diode C19B-02400E2-20,6NA
12 VDC Connector AMP Junior Timer with quenching diode C19B-01200E4-6,5NA
24 VDC Connector AMP Junior Timer with quenching diode C19B-02400E4-20,6NA
12 VDC Connector Deutsch with quenching diode C19B-01200E13-6,5NA
24 VDC Connector Deutsch with quenching diode C19B-02400E13-20,6NA
Note:
Example of most frequent coil types.
For complete range valve coils with technical informatik about voltage, enclosure type, terminal box please afer to coil
data sheet HA 8007.
Type E2
4
ARGO-HYTOS s.r.o. CZ - 543 15 Vrchlabí
tel.: +420-499-403 111
e-mail: info.cz@argo-hytos.com
www.argo-hytos.com
HA 5123
Cavity
Caution!
Spare Parts
• The packing foil is recyclable.
• The technical information regarding the product presented in this catalogue is for descriptive purposes only. It should
not be construed in any case as a guaranteed representation of the product properties in the sense of the law.
Solenoid coil
Type of the coil
E2 E4 E13
Nominal voltage coil
Ordering number
12 V DC 28145600 28145800 29867600
24 V DC 27824300 27824400 29868600
Main valve
Designation Ordering number
SP6H2-B3/HV 29248000
Seal kit (Main valve)
Dimensions, quantity Ordering number
Dualseal - PU O-ring
13,47x15,87x 3,1(1pc) 17,47x15,07x3,1 (1pc) 19,4x2,1 (1pc) 18960600
Subject to alteration without notice !
min.30(1.18)
48+0,4(1.88+0.016)
min.45,9(1.81)
37,8+0,4(1.49+0.016)
(0.624/0.627)
(0.687/0.689)
max.22(0.87)
min.14(0.55)
max.37,8(1.49)
24±0,05(0.94/0.95)
min. 34(1.34)
22 (0.87+0.016)+0,4
34,8(1.37+0.016)
max 1(0.04)
min.16(0.63)
90° 10°
±
7/8-14 UNF-2B
15,87+0,05
3,2
A
0,04
A
0,05
A
0,05
1,6
1,6
30°
3,2
17,47+0,05
A
1,6
3,2
R 0,2 R 0,2
3
(
(
,
30°
A
0,05
30° 2°
±
2,5 0.1+0.016)+0,4(
Seal kit (Pilot valve)
Dimensions, quantity Ordering number
Dualseal - PU O-ring
10,3 x 12,7 x 3,1 (1pc) 17,17 x 1,78 (1pc) 17014300
