DACV04-20 & DACV04-B20 Check Valves

DESCRIPTION

A screw-in, cartridge-style, hydraulic check valve for use as a blocking or load-holding device. Available in conventional surface mount or convenient “down-cavity” versions.

OPERATION

The DACV04-20 and DACV04-B20 allow flow passage from 1 to 2，while normally blocking oil flow in the opposite direction.The cartridge has a fully guided check which is spring-biased closed until sufficient pressure is applied at 1 to open to 2.

FEATURES

● Hardened seat for long life and low leakage.
● Optional bias springs for back-pressure application flexibility.
● Fully guided check assembly.
● Miniature size.
● Fast closing and seating.

RATINGS

Operating Pressure:241.3 bar (3500 psi)
Flow:See Performance Chart
Internal Leakage:0.10 cc/minute (2 drops/minute) max.
at 206.8 bar (3000 psi)
Crack Pressure Defined:Gauge psi evident at 1 at 16.4 cc/minute
(1 cu. in./minute) attained
Standard Bias Springs at Crack:0.34 bar (5 psi)
Temperature:-40℃～ 120℃
Fluids:Mineral-based or synthetics with lubricating properties at viscosities of 7.4 to 420 cSt (50 to 2000 ssu)

Cavity：

Cavity：