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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 ➂ or ➁ to be fully pressurized.
In neutral (unpiloted), the PS50-40 blocks flow between ➂ and ➁ bidirectionally.The spring chamber is constantly vented at ➃. On attainment of a pre-determined pressure at ➀, the cartridge shifts to open ➂ to ➁ 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 cavity.
Operating Pressure: 345 bar (5000 psi)
Flow: See Performance Chart
Internal Leakage: 82 cc/minute (5 cu. in./minute) max. 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: -40 to 120°C with standard Buna 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 9.110.1
Cavity Tool: CT10-4XX; See page 8.600.1
Seal Kit: SK10-4P-BMM; See page 8.650.1
