A valve stem is mounted to the valve housing and is engageable with an external surface region of the diaphragm. The valve stem is selectively movable toward and away from the inlet passage and causes

Valve housing including a valve chamber incorporating fluid inlet and outlet conduits and a valve seat, and said valve assembly disposed within said housing and comprising a valve stem and stem collar

Diaphragm valves selectively operable to restrict or permit fluid flow are generally well known in the art. Such valves conventionally include a weir or valve seat. An elastomeric or plastic diaphragm

The prior art has provided diaphragm valves to selectively allow and prevent passage of a flowing fluid. In one type of diaphragm valve a housing is provided with a chamber having an outlet opening, a

The diaphragm is formed of a compressible elastomeric composition. The end closure or end cap portion of the diaphragm enveloping the stem foot and swivel component is adapted to seat in fluid sealing

Another object of the invention is to provide a diaphragm valve wherein the valve seat is mounted on, or comprises a portion of, a removable valve seating ring.

Disclosed herein is an improved valve for regulating the flow of fluids. The valve includes a housing defining, in part, a flow passageway having a port surrounded by a valve seat. A diaphragm is moun

According to another aspect, the present invention provides a diaphragm valve comprising: an actuator: a valve body formed with: an inlet passage; an outlet passage which is brought into communication