PS10-40 Sequence, Normally Closed…(PS10-40)

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.

Product Operation

In neutral (unpiloted), the PS10-40 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.

Product Features

 Adjustments cannot be backed out of the valve.
 Adjustments prohibit springs from going solid.
 Optional spring ranges to 151.7 bar (2200 psi).
 Hardened precision spool and cage for long life.
 Industry common cavity.

Product Ratings

Operating Pressure: 240 bar (3500 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); 15.2 to 151.7 bar (220 to 2200 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: SK10-4X-BMM; See page 8.650.1

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