Lined diaphragm valve is a kind of special form, which has the function of truncation valve, the opening and closing by steel disc and rubber diaphragm and the valve body cavity with the valve cover inner chamber is separated, when operating the handwheel clockwise, stem down, with the disc drive the diaphragm down pathways truncation, otherwise the valve is open.
Series - 150 | PN10-PN16
Design Features
- Open the diaphragm too frequent will influence the sealing performance
- Lining material: PTFE, FEP, PFA etc
- Operation methods: manual, electric, pneumatic
- DAGO lined diaphragm valves are available as per the needs of applications in additional sizes and other than standard materials
Product Specifications
- Size 1/2″-16″ DN15-DN400
- Pressure Class "150" | PN10-PN16
- End Connection Flange (FF, RF), BSPT, NPT
- Body Material Cast Iron, WCB, CF8, CF8M
- Disc Material CI,WCB, SS304, SS316
- Diaphragm Material NR+PTFE, NR+FEP, NR+PFA
- Lined Material PTFE (F4), FEP (F46), PFA, PCTFE, PVDF, RPP
- Design Standard GB 12239, BS5156
- Face to Face Standard JB 1688, GB/T 12221, BS 5156
- Test Standard API 598, JB/T 9092, GB/T 13927
- Temperature Range -20℃~180℃
- Actuator Options Manual, Pneumatic, Electric
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Structure Style
- Weir Type, Through Way Type, Oblique, 3 Way
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Connection Standard
- Flange Drilling: GB4216, JB78, BS 4504, ANSI B 16.5 BSPT, NPT