Pinch tube proportioning valve and control cam cartridge therefo
Pinch valve construction
Plug mechanism for wellhead tool
Plug valve
Plug valve
Pollution control device
Ported gate valve
Power transmission
Pressure control valve
Pressure equalization valve and technique for shaft furnace
Pressure pipeline structure and method
Pressure plug
Pressure regulator
Pressure regulator for a fuel system
Pressure regulator system
Prosthesis air valve assembly and tool therefor
Quick change valve trim assembly
Quick disengaging valve actuator
Quick release toilet tank valve
Quick-release system for mounting a faucet assembly