E-LOHD Vent-to-open, spring-biased closed, unbalanced poppet logic element with pilot source from port 1 or 2
SYMBOL
OPERATION
These unbalanced, vent-to-open logic valves are 2-way switching elements that are spring-biased closed and incorporate an integral shuttle so that the higher of pressures at either port 1 or port 2 can be used as a pilot source. With port 3 blocked, the valve is held in the closed position by the spring force. With port 3 vented, the valve will open provided there is sufficient pressure to overcome the spring force. The force generated at port 3, plus the spring force, must be greater than the sum of the forces acting at port 1 and port 2 for the valve to remain closed. NOTE: The pilot area (port 3) is 1.8 times the area at port 1 and 2.25 times the area at port 2.
SPECIFICATIONS:
Working Pressure: 350 bar (5000 psi)
Flow Rating: 400 lpm (100 gpm)
Maximum Internal Leakage: 10 drops/min.at 110 SUS (24 cSt)
Temperature Range: - 40 °C ~ +120 °C
Fluids: Mineral based fluids with viscosities of 7.4 to 420 cSt (50 to 2000 ssu)
Cavity: T-17A
PERFORMANCE:
ORDER CODE:
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We guarantee quality for 3 years for non-standard customized valves: No leakage, No Noise, No Vibration.
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