Manual diaphragm valve

Diaphragm valve is widely used in chromatography column and chromatography system. It is different from conventional valve structure and working principle. It is self-supporting structure, does not need external power supply wind, and its work is completed by process medium (compressed air). Its principle uses compressed air to enter diaphragm valve chamber through throttling hole. Under static state, compressed air inlet pressure and diaphragm The air pressure in the valve chamber is equal, and the diaphragm valve is closed under the action of spring force without back blowing. Once the vent is electrified, the gas in the air chamber is vented through the vent, the pressure drops, the diaphragm valve is opened automatically, and the compressed air enters the filter for back blowing. After the vent solenoid valve loses power, the balance in the air chamber is re established and the diaphragm valve is closed.

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Product features The application case

The sanitary valve adopts clamp type, which has the advantages of simple structure, beautiful appearance, quick installation and disassembly, quick switch, flexible operation, small fluid resistance, safe and reliable use, etc.

All the steel parts are made of acid resistant stainless steel, and the sealing parts are made of food silicone rubber or polytetrafluoroethylene, meeting the food hygiene standards.

1. Steel parts: stainless steel 316L

2. Seal: EPDM + PTFE (EPDM + polytetrafluoroethylene) the seal is made of imported sealing materials (all in accordance with fda177.2600 standard). With Ritter's unique technology, a connecting bolt and EPDM / PTFE are perfectly integrated into an integral sealing part. The PTFE material at the contact part of the sealing part and the medium has good cold resistance (- 25 ℃) excellent heat resistance (+ 250 ℃) good resistance to various chemicals and excellent wear resistance to the fluid!

3. The reason for the structure design of diaphragm valve is especially suitable for ultra pure medium or highly polluted, very viscous liquid, gas, corrosive or inert medium. When combined with control equipment, diaphragm valve can replace other traditional control systems, especially suitable for solid and easily polluted inert media.

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