Cartridge valve
Pressure Valves
- Relief Valves
- Relief Valves Reducing Valves Sequence Valves Pilot Unloading Valves
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Technical Feature
OPERATION
The valve is normally closed, pressure-limiting valves used to protect hydraulic
components from pressure transients. When the pressure at the inlet (port ① ) reaches
the valve setting, the valve starts to open to tank (port ② ), throttling flow to limit the
pressure rise. These valves are smooth and quiet, essentially zero leak, dirt tolerant,
immune to silting and are very fast. -
PerformanceCurves
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Technical Data
Operating Pressure350barFlowSee PRESSURE DROP VS.FLOW graph.CavitySUN T-18AFiltrationRefer to "Cleanliness of Hydraulic Fluid"Internal Leakage10drops/minReseat Pressure>80% of setting pressureStandard Spring RangesA 35-210bar； Preset 70bar
B 20-105bar； Preset 70bar
C 70-420bar； Preset 70bar
D 14-55bar； Preset 28bar
E 7-28bar； Preset 14bar
W 55-315bar； Preset 70bar
S 3.5-14bar； Preset 7barTemperature-40ºF to +250ºF(-40ºC to +120ºC)FluidsMineral-based fluids with viscosities of 7.4 to 420 cSt.Body MaterialSteel & Ductile iron rated to 350bar -
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