A screw-in, cartridge-style, direct-acting, differential area poppettype hydraulic relief valve for use as a pressure limiting device in
more demanding hydraulic circuits, requiring low hysteresis and low internal leakage.
• Adjustments cannot be backed out of the valve • Optional spring ranges to 241 bar • Smooth response to pressure surges • Industry common cavity • Hardened parts for long life
Technical Specs
Rated pressure
241 bar (3500 psi)
Peak flow
See performance chart
Pressure rise
0.34 bar/L/min (5 psi/g)
Internal leakage
≤ 5 drops/min @ 85% of nominal setting
Crack pressure defined
bar (psi) evident at 0.95 L/min attained
Standard spring ranges
See the table "Spring Model Code"
Cavity
VC10-2 (See technical reference)
Fluid
Mineral-based or synthetics with lubricating properties
Fluid temperature range ℃
-54 to 107 ℃ (Polyurethane seals)
-40 to 100 ℃ (Buna N seals)
-26 to 204 ℃ (Fluorocarbon seals)
Viscosity range
7.4 to 420 mm2/s
Degree of fluid contamination
The minimum pollution level is ISO4406 level 18/16/13, and level 15/13/11 is recommended to prolong the service life