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September 03,2026
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RPESLAN
Name: Pilot-operated, balanced poppet relief valve - RPESLAN Description: Pilot-operated, balanced-poppet relief cartridges are normally closed pressure regulating valves. When the pressure at the inlet (port 1) reaches the valve setting, the valve starts to open to tank (port 2), throttling flow to regulate the pressure. These valves are accurate, smooth, quiet, fast, and have low pressure rise vs. flow.
Because the modulating occurs inside the cartridge, these valves are immune to most of the problems associated with cavitation, namely noise and manifold erosion.
Will accept maximum pressure at port 2; suitable for use in cross port relief circuits.
Valve is relatively insensitive to varying oil temperatures and oil borne contamination.
Main stage orifice is protected by a 150-micron stainless steel screen.
Suitable for use in load holding applications.
Back pressure on the tank port (port 2) is directly additive to the valve setting at a 1:1 ratio.
W and Y controls (where applicable) can be specified with or without a special setting. When no special setting is specified, the valve is adjustable throughout its full range using the W or Y control. When a special setting is specified, this setting represents the maximum setting of the valve.
Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.
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150micronscreen
200lpm
2msresponse
350bar
5000psi
50gpm
5turns
adjustablerelief
backpressureadditive
balancedpiston
bunaseals
corrosionresistant
crossportrelief
epdmseals
fastacting
fastclosing
fastopening
fastresponse
fatiguerated
floatingstyle
functionaltested
hydraulicvalve
lowpressurerise
nfpastandard
nobinding
normallyclosed
notforloadholding
phosphateester
pilotoperated
pressurecontrol
pressurelimiting
reliefvalve
rpgelan
screwadjustment
spoolleakage
stainlesssteel
sunhydraulics
t3acavity
transientprotection
vitonseals
zincnickelplating