SR1P2-A2
3/4-16 UNF • Q
max
1.5 l/min (0.40 GPM) • p
max
350 bar (5100 PSI)
38 (1.50)
45,5 (1.79)
42 (1.65)
49,4 (1.95)
27,7 (1.09) max. 89 (3.50)
3/4-16 UNF
12,65 (0.50)
24
13
27
37 (1.46)
30+2 Nm
(22.1+1.48 lbf.ft)
30 (1.18)
8+2 Nm
(5.9+1.5 lbf.ft)
9+5 Nm
(6.6+3.7 lbf.ft)
5
+p
p
Symbol
Subject to change · SR1P2-A2_5122_2en_02/2019
www.argo-hytos.com
Page 1
Proportional Pressure Control Valve, Relieving, Direct-Acting
Technical Features
› Increasing pressure output proportional with increasing DC current input
› Low hysteresis, accurate pressure control
› Wide pressure range up to 350 bar
› Solenoid electrical terminal option acc. to EN 175301-803-A, AMP Junior Timer, or Deutsch DT04-2P
› 12 or 24 V DC coils
› Usable as pilot stage for SR4P2-B2 and SP4P2-B3 proportional valves
› In the standard version, the valve is zinc-coated for 240 h protection acc. to ISO 9227
Functional Description
Technical Data
A direct operated proportional poppet pressure relief valve in the form of a screw-in cartridge. The valve is
designed for continuous regulation of system pressure. It is used mostly as a pilot stage. To set the minimum
cracking pressure use the adjusting screw (s=5) which incorporates also the air bleed screw. Back pressure on
port T becomes additive to the pressure setting of the valve. Air bleeding is necessary for the correct function
of the valve. Installation: When possible, the valve should be mounted below the reservoir oil level. This will
keep oil in the actuator at all times, preventing instability caused by air enclosures. If this is not possible, mount
the valve for best results vertically downward with proper air bleeding.
Valve size / Cartridge cavity 3/4-16 UNF-2A / A2
Max. operating pressure (port P) bar (PSI) 350 (5080)
Max. operating pressure (port T) bar (PSI) 100 (1450)
Max. flow l/min (GPM) 1.5 (0.40)
Fluid temperature range (NBR) °C (°F) -30 ... +120 (-22 ... 248)
Fluid temperature range (FPM) °C (°F) -20 ... +120 (-4 ... 248)
Ambient temperature range °C (°F) -30 ... +80 (-22 ... 176)
Hysteresis % < 5
Solenoid data
Supply voltage V 12 DC 24 DC
Max. current A 1 0.6
Rated resistance at 20 °C (68 °F) Ω 6.5 ± 5 % 20.6 ± 5 %
Duty cycle % 100
Optimal PWM frequency Hz 200
Quenching diode BZW06-19B BZW06-33B
Enclosure type acc.to EN 60529** IP65 / IP67 / IP69K
Weight with solenoid kg (Ibs) 0.44 (0.97)
Data Sheet Type
General information GI_0060 Products and operating conditions
Coil types C_8007 C19B*
Valve bodies
In-line mounted SB_0018 SB-A2*
Sandwich mounted SB-04(06)_0028 SB-*A2*
Cavity details / Form tools SMT_0019 SMT-A2*
Spare Parts SP_8010
**The indicated IP protection level is only reached with a properly mounted connector.
Dimensions in millimeters (inches)
Connector type
E1, E2 - IP65
EN 175301-803-A
E3A, E4A - IP67
AMP Junior Timer
- axial
E12A, E13A
- IP67 / IP69K
Deutsch DT04-2P
E3, E4 - IP67
AMP Junior Timer
- radial
SR1P2 - A2 / H - -
0
15
20
10
0,2
5
(.)72 5
30
25
()140
()218
()290
()363
()435
0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0
( .05)0 (0.15) (0.25) (0.35) (0.45)(0.5)
1
2
3
5
4
A
B
3
6
12
21
35
12
24
E1
E2
E3
E4
E3A
E4A
E12A
E13A
Pressure range 3 6 12 21 35
1 2 3 4 5
Pressure range 3 6 12 21 35
1 2 3 4 5
Pressure range 3 6 12 21 35
1 2 3 4 5
0
205
300
100
200
50
( 30)7
400
350
(2900)
(3630)
(4350)
(5080)
(5800)
400 600 800 1000
120 240
600
360 480
3
2
1
105
200
(1450)
(2180)
4
5
250
300
1 00
50
( 30)7
400
350
(2900)
(3630)
(4350)
(5080)
(5800)
3
2
1
1 05
200
(1450)
(2180)
0
0,2
0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0
(0.05) (0.15) (0.25) (0.35) (0.45) (0.5)
4
5
Subject to change · SR1P2-A2_5122_2en_02/2019
www.argo-hytos.com
Page 2
Characteristics measured at ν = 32 mm
2
/s (156 SUS)
Ordering Code
Proportional pressure control valve,
relieving, direct-acting
Max. regulated pressure
up to 30 bar (435 PSI)
up to 60 bar (870 PSI)
up to 120 bar (1740 PSI)
up to 210 bar (3046 PSI)
up to 350 bar (5076 PSI)
Surface treatment
zinc-coated (ZnCr-3), ISO 9227 (240 h)
zinc-coated (ZnNi), ISO 9227 (520 h)
No designation
V
Seals
NBR
FPM (Viton)
Supply voltage / max. current
12 V DC / 1 A
24 V DC / 0.6 A
Connector type
EN 175301-803-A
E1 with quenching diode
AMP Junior Timer - radial direction (2 pins; male)
E3 with quenching diode
AMP Junior Timer - axial direction (2 pins; male)
E3A with quenching diode
Deutsch DT04-2P - axial direction
E12A with quenching diode
Model
High performance
For other solenoid terminals see data sheet No. 8007
Pressure drop related to flow rate
Pressure drop ∆p [bar (PSI)]
Flow Q [I/min (GPM)]
0% of control current, P-T direction
Relief pressure related to control signal
Pressure p [bar (PSI)]
Control current [Ic (mA)]
12 V coil
24 V coil
Relief pressure related to flow rate
Pressure p [bar (PSI)]
Flow Q [I/min (GPM)]
Q=0.2 l/min (0.05 GPM), pressure in port T=0 bar, PWM 160Hz
Valve cavity
3/4-16UNF
Attention:
The proportional pressure relief valve is not mechanically
protected and it does not perform the relief valve function.
