The DIAPHRAGM VALVE, in which a flexible membrane moves (or is compressed) to allow/prevent flow, is a truly ancient device.
During the Roman Empire and earlier, simple leather diaphragms were being used in valves to control flow and temperature of household bath water.
That technology was effectively rediscovered early in the 20th century by the South African mining engineer P.K. Saunders, the man who developed the first modern diaphragm valve.
In modern diaphragm valves various resilient materials are selected according to the temperature and chemical composition of the flowing media.
Diverter Valve Suppliers
DIVERTER PORT BALL VALVE
PBM Featured Diverter Valve
The PBM Diverter Port valve is a 3-Way valve with the common port at the side or the bottom of the valve.
This valve has seats for positive shut-off on two ports, and a third, or common, port which has no seat and is always open to flow.
The PBM Diverter Port valve is an economical choice for many piping designs.
In some applications, a single Diverter Port can replace two or three 2-Way valves to reduce cost and space.
In other applications, a Diverter Port valve can produce an economical alternative to a 3-Way multi-port valve, depending on the sealing requirements.
This valve is also an excellent choice for mounting two relief valves from a common pressure source.
PBM Series 5 Diverter Port valves are readily available in sizes 1/2" - 6" in 316 stainless steel, with other materials upon request.
A wide choice of end fittings are available.