A pilot-operated , poppet-type pressure relief valve
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The valve prevents flow from ① to ② until pressure at ① exceeds the set crack pressure
and opens the pilot section. The pilot flow creates a pressure differential across the
poppet which causes the valve to open allowing flow from ① to ② protecting the circuit
from over pressurization.
Pressure at ② is directly additive to the relief setting of the valve.
Technical Data420barSee PRESSURE DROP VS.FLOW graph.Rexroth-FBRefer to "Cleanliness of Hydraulic Fluid"15 drops/min. (15滴/分) max. to 70% of nominal setting-40ºF to +250ºF(-40ºC to +120ºC)Mineral-based fluids with viscosities of 7.4 to 420 cSt.Steel & Ductile iron rated to 350bar
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