DAPC08-30 Check, Pilot-to-Open

DESCRIPTION

A screw-in, cartridge-style, pilot-operated, hydraulic check valve for use in blocking or load-holding circuits.

OPERATION

The DAPC08-30 allows flow passage from 2 to 3，while normally blocking flow from 3 to 2 . Flow will be allowed from 3 to 2 when sufficient pressure is applied at 1.The cartridge has a 3:1 pilot ratio, meaning that at least one-third of the load pressure held at 3 is required at 1 to open the valve.The check is spring-biased to assure holding in static or no-load conditions. A sealed pilot piston option is available.

FEATURES

● Hardened seat for long life and low leakage.
● Optional sealed piston.
● Optional spring ranges.
● Compact size.

RATINGS

Operating Pressure:240 bar（3500 psi）
Flow:See Performance Chart
Internal Leakage:at 240 bar (3500 psi):
3 to 2 : 0.25 ml/minute (2 drops/minute)
2 to 1 without sealed piston: 115 ml/minute (7 cu. in./minute)
2 to 1 with sealed piston: zero leakage
Pilot Ratio:3:1
Check Spring Bias: 1.72 bar (25 psi) standard;
With sealed piston option:6.2 bar (90 psi) minimum
Temperature:-40℃～ 120℃
Fluids:Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 ssu)

Cavity: