DARV10-22 Relief, Differential Area Poppet

DESCRIPTION

A screw-in, cartridge-style, direct-acting, differential area, poppet-type hydraulic relief valve for use as a pressure limiting device in more demanding hydraulic circuits, requiring low hysteresis and low internal leakage.

OPERATION

The DARV10-22 Due to manufacturing tolerances, it may be possible to adjust the valve either lower or higher than the nominal ratings shown below.
NOTE：DARV10-22 may be used in cross-over relief applications (back pressure on ① ) with the use of the “C”double back-up ring seal option. See Ordering Table.

FEATURES

● Adjustments cannot be backed out of the valve.
● Adjustment options A, B, and C: positive stops prevent springs from going solid.
● Hardened spool and cage for long life.
● Optional spring ranges to 241 bar（3500 psi）.
● Smooth response to pressure surges.
● Industry common cavity.

RATINGS

Operating Pressure:241 bar（3500 psi）
Flow:The Performance Chart illustrates flow handling capacity at maximum setting for each spring range option. Pressure rise will vary with spring (range) and with setting within range due to flow forces. Consult factory for specific flow characteristic values.
Pressure Rise: 0.34 bar/lpm（5 psi/gpm）
Internal Leakage: 0.25 cc/minute (5 drops/minute) max. to 85% of nominal setting
Crack Pressure Defined: bar (psi) evident at 0.95 lpm (0.25 gpm) attained
Standard Spring Ranges：Due to manufacturing tolerances, it may be possible to adjust the valve either lower or higher than the nominal ratings shown below.

Temperature:-40℃～120℃

Fluids:Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 ssu)

Cavity: