A diaphragm valve is used on shut-off and throttling service for liquids, slurries, gases and vacuum. 

Diaphragm valves seal by a flexible membrane (the diaphragm), being forced against a seat. The diaphragm seals by pressure exerted on it by a linear motion stem.

1. It is cost-effective and safe to be used,which can help you save cost of the whole system Single Seat Pneumatic Globe Control Valve maintenance.
2. It has a simple structure and a big torque, explosion-proof with short actuating times,optimized actuating forces and reliable tight sealing.
3. It can perfectly avoid problems of friction, corrosion, and emissions.
4. It is of low center of gravity, high vibration resistance and easy to install.
5. Simple to control, rapid response, and intrinsic safety, no need to take additional explosion-proof measures.
6. Fluid channels in a s- shaped streamline, small pressure drop loss large flow, wide adjustment range, high precision flow