SO5A-T3/I
M38x2 • Q
max
140 l/min (37 GPM) • p
max
420 bar (6100 PSI)
1
2
3
10
30
20
(145)
(725)
(580)
(290)
50
40
(435)
0 40 80 120 160 200
(10.6) (21.1) (31.7) (42.3) (52.8)
1
2
Valve size / Cartridge cavity M38x2 / T3
Max. flow l/min (GPM) 140 (37)
Max. load induced pressure bar (PSI) 340 (4930)
Max. relief pressure bar (PSI) 420 (6090)
Fluid temperature range °C (°F) -20 .... +90 (-4 ... +194)
Pilot ratio 4:1, 6:1
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) 1.20 (2.65)
Datasheet Type
General information GI_0060 Products and operating conditions
Valve bodies In-line mounted SB_0018 SB-T3*
Cavity details SMT_0019 SMT-T3*
Spare parts SP_8010
Subject to change · SO5A-T3/I_5214_2en_05/2017
www.argo-hytos.com
Page 1
Overcentre Valve
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
› 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.
Pressure drop ∆p [bar (PSI)]
Flow Q [l/min (GPM)]
Pilot ratio 4:1 and 6:1
Pressure drop related to flow rate
Flow
1 Free flow (2→1)
2 Pilot open (1→2)
Symbol
Technical Data
M38x2
A
42
SO5A-T3 / l - - -
Seals
NBR
FPM (Viton)
Surface treatment
zinc-coated (ZnCr-3), ISO 9227 (240 h)
Factory setting [bar @ l/min]
370 bar for 4.8 l/min370/4,8
Overcentre valve M38x2
Relief pressure range
310 - 420 bar (4500 - 6090 PSI)
No designation
V
4
6
4:1
6:1
Pilot ratio
standard
Subject to change · SO5A-T3/I_5214_2en_05/2017
www.argo-hytos.com
Page 2
Dimensions in millimeters (inches)
Ordering Code
