Diaphragm Valves

The diaphragm valve is composed of a piston, a diaphragm, a seat and a body. The movement of the piston, operated manually, pneumatically or motorized, deforms the membrane which obstructs the surface of the seat, without contact between the exterior or the actuator and the fluid. 

The membrane can be metallic, plastic or other materials (elastomer or mixture of elastomers).