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COHA Hydraulic Pilot-to-close Check Valve

Item No.: COHA
This valve is a spring biased closed, pilot-to-close check cartridge that has a 1.8:1 pilot ratio.
Description
Description

COHA Hydraulic Pilot-to-close Check Valve



SYMBOLS:


OPERATION: 

This valve is a spring biased closed, pilot-to-close check cartridge that has a 1.8:1 pilot ratio.

Pressure at overcomers the spring-bias poppet and allows free flow to ; Flow in the opposite direction from to is blocked by the poppet.

When the required pilot pressure is achieved at , the poppet is held closed to block flow between and . The pilot piston area to poppet seat area ratio is 1.8:1. 

 

SPECIFICATIONS:

Max. Operating Pressure: 350 bar (5000 psi) 

Flow: see performance chart

Internal Leakage: 2drops/min max. at 350bar (5000 psi) 

Pilot Ratio: 1.8:1

Temperature: - 30°C to 100°C (with Standard Buna N seals)

Filtration: 25μm or better

Cavity: SUN T-17A

Installation Torque: 200-215Nm 

PERFORMANCE:

 

 

ORDER CODE:



AAK Hydraulic Valve is a top manufacturer for Hydraulic Pilot-to-Close Check Valves in Ningbo China since 2009.
We guarantee quality for 3 years for non-standard customized valves: No leakage, No Noise, No Vibration.

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