Cartridge insert valve

Details Cartridge insert valve Cartridge insert valve

2008-04-11

2011-11-01

Rivell, John (Department: 3753)

Fluid handling

Removable valve head and seat unit

C137S460000, C137S504000

Reexamination Certificate

active

08047224

ABSTRACT:
The present invention is for a cartridge insert valve to limit excess flow through a pipe which is part of a piping system. The cartridge insert valve includes a cylindrical housing and an inlet cap with an inlet opening defined therein. The inlet cap is positioned on a cylindrical housing first end. The cartridge insert valve also includes a seat cap with an orifice defined therein. The seat cap is positioned on a cylindrical housing second end opposite the cylindrical housing first end. The cartridge insert valve is located in the pipe such that a fluid flowing through the pipe normally enters the inlet cap, flows through the cylindrical housing and exits the seat cap. The cartridge insert valve also includes a piston assembly that shuts off flow through the valve in response to an excess flow through the valve.

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