REPAIRABLE CARTRIDGE VALVE

摘要

A cartridge valve comprises an operator section for operating a valve, and a cartridge section with the valve. The operator section includes a first body and two pistons on a common shaft. The cartridge section includes a second body with valve seat, a cartridge insert having a protruding portion with annular ring, and a valve poppet operably engaging the valve seat. Two retainer screws engage the annular ring to hold the first and second bodies longitudinally together but permit rotation. The piston shaft defines a gap to the valve poppet when in a home position so that the shaft and piston initially gain momentum before abutting the valve poppet. The cartridge insert can be removed from the second body to allow replacement of a poppet seal therebetween.

主权项

1. A cartridge valve comprising:
an operator section including at least one piston; a cartridge section including a second body with viscous fluid inlet and outlet ports, and a valve seat; a valve poppet operably engaging the valve seat for controlling flow to the outlet port; the first and second bodies including male and female mating sections, the male mating section including an annular groove and the female mating section including at least one hole aligned with the annular groove; a replaceable seal in the cartridge section engaging the valve poppet and accessible when the male and female mating sections are disengaged; and at least one releasable retainer extending through the at least one hole and engaging the annular groove to hold the first and second bodies longitudinally together but permitting independent rotation.