All steel connecting components of Stainless Steel Diaphragm Valve with Flange Ends are made of acid-resistant stainless steel, and the sealing parts are made of silicone rubber or PTFE, complying with sanitary standards. It is widely applied in brewing, fine chemical and many other industries.

Product Performance

Main Advantages

Elastic sealing closing and opening components guarantee zero internal leakage. Streamlined flow channel brings low pressure loss. No stuffing box structure eliminates external leakage completely. The valve body and bonnet are separated by the middle diaphragm, so components including bonnet and stem above the diaphragm will not be corroded by media. The diaphragm is replaceable with low maintenance cost. Various lining materials are available to fit different media, featuring high mechanical strength and excellent corrosion resistance.

Structural Features

Due to its unique structural design, this diaphragm valve is specially suitable for ultra-pure media, heavily contaminated, highly viscous liquid, gas, corrosive or inert media. When matched with control equipment, it can replace other traditional control systems, especially for inert media containing solids or prone to contamination.

Main Component Materials

Specification Parameters of Stainless Steel Diaphragm Valve with Flange Ends

Product Size: 1"–4", DN25–DN100 Operating Temperature: -20℃ ~ 150℃ (Depends on diaphragm, stainless steel actuator) Operating Temperature: -20℃ ~ 130℃ (Depends on diaphragm, plastic actuator) Operating Pressure: Normally closed type, rubber diaphragm: 8 bar; PTFE diaphragm: 6 bar (Optional) Normally closed type, rubber diaphragm: 6 bar; PTFE diaphragm: 4.5 bar (Standard) Normally open & double acting type, rubber diaphragm: 8 bar; PTFE diaphragm: 6 bar Higher pressure rating can be achieved by replacing different actuators. Forged Valve Body: 1.4404/316L, 1.4435 NB2, Fe ≤ 0.5% Cast Valve Body: 1.4404/316L Connection Types: Welded, Clamped, Flanged, Threaded, Union and others Valve Body Structure: Straight-through, 3-way, U-type 3-way, Tank Bottom Valve, Multi-channel Diaphragm Valve and others Diaphragm Materials: EPDM+PTFE (Double layer), EPDM, Silicon, FPM (Viton) Connection Standards: 3A, BPE, DIN, SMS, IDF, ISO

Overall Dimensions

Unit: mm