Product Name: Manual Vacuum Diaphragm Valve

Product model: GM

Brand: Xinrongda

Origin: Wenzhou

Series: Diaphragm Valve

Manual vacuum diaphragm valve

A high vacuum diaphragm valve uses a valve stem to directly press a rubber film onto the valve seat, used to shut off or connect the vacuum system. The connection forms used include sleeve flange connection, quick release flange connection, and welded connection. Welded connections can be divided into welded Type I connections (i.e. both ends welded) and welded Type II connections (i.e. one end welded and the other end inserted). The working medium suitable for vacuum diaphragm valves is air and non corrosive gases.

Purpose and scope of use:

The GM series manual vacuum diaphragm valve is a valve used to open or block airflow in vacuum systems ranging from 1.3 × 10-5 to 3 × 105Pa.

Main performance:

*Leakage rate: ≤ 1×10-9Pa. M3/S；

*Material: 304, 316L;

*Working medium: air, water, acid, alkali;

*Working temperature: Fluororubber -30 ℃~+150 ℃;

The principle of manual vacuum diaphragm valve:

Rotate the screw to move the valve core up and down, while pulling the diaphragm up and down to close and open.

characteristic:

*Compact, simple, small in size, and aesthetically pleasing in appearance;

*The switch is guided and moves smoothly;

*Small closing torque, long lifespan, ≥ 30000 times;

*The membrane compression can be automatically adjusted, with uniform compression and reliable sealing;

*The membrane is inserted into the valve core in a push in manner, making it easy to replace;

Main component materials:

Valve cover, valve core, valve body: 304; Valve stem: H62； Diaphragm: Fluororubber, Ethylene Propylene Rubber, etc

External dimensions:

Insert welding connection size

Connection size of loose flange (standard: GB6070)

Quick release flange connection size (standard: GB4982)

Sanitary flange connection size (standard: ISO-2852)