SYMBOL
DESCRIPTION
The E-DC10-40 is a cartridge style, dual pilot operated check valve for use in blocking or load holding circuits. This valve has an optional thermal relief from port 4 to port 3.
OPERATION:
The E-DC10-40 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 port 3.
The valve has a 3:1 pilot ratio, so at least 1/3 of the load pressure at port 1 or 4 is required at the pilot lines (ports 2 or 3) to open the flow passage to allow flow from ports 1 to 4.
The check is spring-biased at 25 psi to assure holding in a static or no load condition.
FEATURES:
l Hardened seat for long life and low leakage.
l Low pressure drop.
l Optional thermal relief.
SPECIFICATIONS:
Working Pressure: Inlet 240 bar (3500 psi)
Rated Inlet Flow: 30.3 lpm (8 gpm); see performance chart
Pilot ratio: 3:1
Check Spring Bias: 1.7 bar (25 psi)
Thermal Relief Crack Pressure: 310 to 386 bar (4500 to 5600 psi)
Thermal Relief Valve Leakage:
0.25 ml/min (5 drops/min) at up to 85% of crack pressure
Maximum Check Valve Leakage:
0.25 ml/min (5 drops/min) at 240 bar (3500 psi)
Temperature Range: - 40°C ~ +120 °C (with Buna N seals)
Fluids: Mineral based or synthetic hydraulic fluid with lubricating properties at viscosities of
Cavity: VC10-4;
PERFORMANCE:
DIMENSIONS:
ORDER CODE:
AAK Hydraulic Valve is a top manufacturer for Hydraulic Pilot Operated 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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