Cartridge valve
Pressure Valves
- Relief Valves
- Relief Valves Reducing Valves Sequence Valves Pilot Unloading Valves
LRQEB
PDF DownloadDescription
A cartridge-style kick-down pilotoperated balanced piston relief valve.
SYMBOL
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Technical Feature
OPERATION:
Kick-down relief cartridges act similar to a circuit breaker in an electrical system. The
valves will kick completely open and remain open once the pressure at the inlet (port ①)
exceeds the valve setting, creating an unrestricted flow path from port ① to tank (port
② ). The valve remains open as long as the pressure at port ① exceeds the pressure
at port ② . To reset the valve, pressure at port ① must fall below the setting of the
valve, flow from ① to ② must cease; pressure at port ② must be equal to or greater
than the pressure at port ①． -
PerformanceCurves
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Technical Data
Operating Pressure350barFlowSee PRESSURE DROP VS.FLOW graph.CavitySUN T-10AFiltrationRefer to "Cleanliness of Hydraulic Fluid"Internal Leakage30 cc/min max. at 70bar.Standard Spring RangesA 7-210bar; Preset:70bar
B 3.5-105bar; Preset:70bar
C 10.5-420bar; Preset:70bar
D 1.7- 55bar; Preset:28bar
E 1.7- 28bar; Preset:14bar
W 10.5- 315bar; Preset:70barTemperature-40°F to +250°F(-40°C to +120°C)FluidsMineral-based fluids with viscosities of 7.4 to 420 cSt.Body MaterialSteel & Ductile iron rated to 350bar -
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