Pressure Control Valves

PS50-40 — Sequence, Normally-Closed, External Drain, High Pressure
Selection guide - similar valves.
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STP file for PS50-40.
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PS50-40 Valve

PS50-40 Valve symbol

A screw-in, cartridge-style, direct-acting, spool-type, hydraulic sequence valve
with external pilot and spring chamber drain. It is designed to function as a pressure
signalled, remote pilot-operated, two-way, normally closed valve. A separate spring
chamber drain galley allows port 3 or 2 to be fully pressurized.

In neutral (unpiloted) the PS50-40 blocks flow between 3 and 2 bidirectionally. The spring
chamber is constantly vented at 4. On attainment of a pre-determined pressure at 1, the
cartridge shifts to open 3 to 2 bidirectionally.

• Adjustments cannot be backed out of the valve.
• Adjustments prohibit springs from going solid.
• Optional spring ranges to 241 bar (3500 psi).
• Hardened precision spool and cage for long life.
• Industry-common size.

Operating Pressure: up to 345 bar (5000 psi)

Flow: up to 38 lpm (10 gpm); see performance chart
Internal Leakage: 82 cc/minute (5 cu. in/minute) maximum to 85% of nominal setting
Spring Ranges: 2.8 to 27.6 bar (40 to 400 psi); 20.7 to 241 bar (300 to 3500 psi)
Temperature: -54 to 107°C (-65 to 225°F) with polyurethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: VC10-4; See page 9.110_4w
Cavity Tool: CT10-4xx; See page 8.600.1
Seal Kit: SK10-4P-BMM; See page 8.650.1


PS50-40 Flow vs Pressure
PS50-40 Valve Dimensions


Cartridge: Weight: 0.34 kg (0.70 lb);
Steel with hardened work surfaces.
Zinc-plated exposed surfaces; Buna N
O-rings and polyester elastomer back-ups standard. Anodized aluminum knobs and caps.

Standard Ported Body:
Weight: 0.34 kg (0.70 lb); Anodized high-strength 6061 T6 aluminum alloy, rated to 207 bar (3000 psi); Ductile iron bodies required for operation over 207 bar (3000 psi); dimensions may differ. See page 8.010_4w.

Adjustment Option Details:
See page 6.003.1

PS50-40 Ordering Chart

Selection guide - similar valves.
PDF file of this page. STP file for PS50-40. .Request a quote.