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clamp high purity pneumatic diaphragm valve(stainless steel) |
clamp high purity pneumatic diaphragm valve(Mushroom type) |
The diaphragm is closed under normal state, and that moment the diaphragm clung to the valve body cavity, and closing off the flow path through the pipeline.
When the diaphragm valve have the requirement to clean or open,the valve stem moves upwards according to the manual or pneumatic actuator equipment, spherical diaphragms naturally bend upwards,so that the valve is open and reach the requirement of clean and open.
The diaphragm make the lower body cavity and the upper chamber separated from the valve cover;so that the stem at the top of the diaphragm ,disc media and other parts from corrosioaeliminating the need for packing structure.and no media leaks.the optimize valve body made the cleaning liquid flow out totally, so that don' t have any entrapment.
Design features:
Material for the part contacted with media is 304/316L, other part is 304,Sealing material EPDM + PTFE. working pressure: 0?lObar control air pressure: 5?8bar
Working temperature: EPDM(-40 ~+120°C), PTFE(-40 ~+1B00C), FPM (-40~+180°C )
Connection: clamp,weld,thread,flange
Control mode: manual operation, pneumatic, electric
Size: 1" -4" /DN25-100 Standards: 3A,DIN,SMS,IDF,ISO
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Note:the above chart suitable for,medium:water(20°C)
■ Surface polishing ■ Ra=roughness ■ Average roughness Ra data is used as a measure of valve body surface finish of a parameter. ■ LT5.6mm length/measurement Lc0.8mm for five measuring ■ Roughness obtained average roughness Ra data ■ According ASME BPE table SF-3 to classify
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Schematic Diaphragm Mounting Angle According to the structure feature, which makes for complete drain after cleaning and keep no residue.
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