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Specifications Model:DARV10-23
Two-year warranty
DARV10-23 Relief, Pilot-Operated Spool
DESCRIPTION
A screw-in, cartridge-style, pilot-operated (two-stage), spool-type hydraulic relief valve, intended for use as a pressure limiting device in demanding hydraulic circuits which require fast response and low hysteresis.low leakage and low pressure overshoot.
OPERATION
The DARV10-23 blocks flow from 1 to 2 until sufficient pressure is present at 1 to force the piloting relief off its seat, allowing the main spool to shift, opening 1 to 2 .
NOTE:The DARV10-23may be used in cross-over relief applications, however, it is not recommended for use as in parallel cross-over relief or anti-cavitation applications.Consult factory for proper flow path connections.
FEATURES
● Adjustments cannot be backed out of the valve.
● Hardened spool and cage for long life.
● Fast, smooth response to pressure surges.
● Industry common cavity.
RATINGS
Operating Pressure:20.7 ~ 240 bar(300 ~ 3500 psi)
Flow:7.6 ~ 113.6 lpm(2 ~ 30 gpm)
Internal Leakage: 0.5 ml/minute (5 drops/minute) max. to 80% of nominal setting
Crack Pressure Defined:Setting Pressure Defined: bar (psi) evident at 7.6 lpm (2.0 gpm) attained
Reseat Pressure:Nominal 90% of crack pressure
Pressure Rise:0.15 bar/lpm (8 psi/gpm),at 240 bar (3500 psi)
Temperature:-54℃~ 135℃(-65 ~ 275° F)(with Buna N seals)
Fluids:Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 ssu)
Cavity: