SOP5A-Q3/I
M20x1.5 • Q
max
30 l/min (8 GPM) • p
max
350 bar (5100 PSI)
1
3
2
0 10 20 30 40 50
10
50
40
30
20
(2.64) (5.28) (7.9) (10.6) (13.2)
(145)
(725)
(580)
(435)
(290)
1
2
1
2
3
Valve size / Cartridge cavity M20x1.5 / Q3
Max. flow l/min (GPM) 30 (7.9)
Max. load induced pressure bar (PSI) 270 (3920)
Max. relief pressure bar (PSI) 350 (5080)
Fluid temperature range °C (°F) -20 .... +90 (-4 ... +194)
Pilot ratio 4:1
Internal Leckage mil/min 0.3 nominal (5 drops per min)
Max. degree of fluid contamination ISO 4406 Class 21/18/13
Mass kg (Ibs) 0.15 (0.33)
Datasheet Type
General information GI_0060 Products and operating conditions
Valve bodies
In-line mounted SB_0018 SB-Q3*
Sandwich mounted SB-04(06)_0028 SB-*Q3*
Cavity details SMT_0019 SMT-Q3*
Spare parts SP_8010
Subject to change · SOP5A-Q3/I_5201_2en_05/2017
www.argo-hytos.com
Page 1
Overcentre Valve, Partially Balanced
Technical Features
Functional Description
Characteristics measured at ν = 40 mm
2
/s (195 SUS)
› The valve prevents runaway ahead of the pump in the event of a negative load
› Load-holding with leak-free closing poppet when directional valve is in neutral position
› Pressure relief function protecting the actuator against overload and pressure peaks
› Integrated check valve acting as an anti-cavitation valve
› When installed into an actuator the valve can be used as a hose burst valve
› Pressure relief section of the valve is not affected by back pressure
› In the standard version, the valve is zinc coated for 240 h protection acc. to ISO 9227
Poppet type, screw-in motion control valve designed to control the runaway of a negative load. The built-in
check valve allows reverse ow into the actuator, which is protected by the internal pressure relief function.
Back pressure at port 2 do not affect the pressure relief setting.
Pressure drop ∆p [bar (PSI)]
Flow Q [l/min (GPM)]
Flow
1 free flow (2→1)
2 pilot open (1→2)
Pilot ratio 4:1
Pressure drop related to flow rate
Symbol
Technical Data
M20x1,5
42,5 (1.67) 47 (1.85) MAX
4
17
1”
45+2 Nm
(33+1.5 lbf.ft)
A
35
SOP5A-Q3 / l - - -
Seals
NBR
FPM (Viton)
Surface treatment
zinc-coated (ZnCr-3), ISO 9227 (240 h)
Factory setting [bar @ l/min]
210 bar at 4.8 l/min
210/4,8
Overcentre valve,
partially balanced M20x1.5
Relief pressure range
100 - 350 bar (1450 - 5080 PSI)
No designation
V
44:1
Pilot ratio
standard
Subject to change · SOP5A-Q3/I_5201_2en_05/2017
www.argo-hytos.com
Page 2
Dimensions in millimeters (inches)
Ordering Code
