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 dual pilotoperated check valve 专利号:201110204290.8

Technical Feature

OPERATION:
The valve will block flow from ① to ② , and from ④ to ③ . Flow is allowed in the opposite direction when pressure is applied to port ② and/or ③ . The valve has a 2.5:1 pilot ratio, so at least 40 percent of the load pressure at port ① or ④ is required at the pilot lines (port ③ or ② )to open the flow passage to allow flow from port ① or ④ .
PerformanceCurves
Technical Data

Operating Pressure
207Bar

Flow

See PRESSURE DROP VS.FLOW graph.

Cavity

08-4

Filtration

Refer to "Cleanliness of Hydraulic Fluid"

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

Crack Pressures
0.4=0.4bar
3.4=3.4bar

Pilot Ratio
2.5:1

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
6061-T6 aluminum alloy rated to 207bar, Steel & Ductile iron rated to 350bar
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PDF File

LDPC-08
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