keta hydraulic

Cartridge valve Directional Valves

Check Valves(Pilot Operated): Direct Acting Check Valves Check Valves(Pilot Operated) Pilot-Operated Directional Valves 2-Way 3-Way 4-Way Shuttle Hot Oil Shuttle Pneumatic-operated Directional Valves Mechanically operated, back-to-back check valve

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A cartridge-style Pilot to open, poppet-type check valve

Technical Feature

OPERATION:
The valve has a non-sealed pilot. It allows free flow from port ② to port ① and blocks flow from port ① to port ② or holding a load. Flow will be allowed from port ① to port ② when pressure is applied to pilot ③ .This pilot operated check valve has a 3:1 pilot ratio, meaning that at least one-third of the load pressure held at ① is required at pilot ③ to open the valve. Pressure at port ② directly opposes pilot pressure.
PerformanceCurves
Technical Data

Operating Pressure
350Bar

Flow

See PRESSURE DROP VS.FLOW graph.

Cavity

SUN T-11A

Filtration

Refer to "Cleanliness of Hydraulic Fluid"

Internal Leakage
1 drops/min. max. at 350bar

Crack Pressures
C=2.0bar
A=0.3bar
B=1.0bar
D=3.5bar
E=5.0bar
F=7.0bar

Pilot Ratio
3:1

Temperature
-40°F to +250°F(-40°C to +120°C)

Fluids
Mineral-based fluids with viscosities of 7.4 to 420 cSt

Body Material
Steel & Ductile iron rated to 350bar
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