General Overview
- Product Name: Diaphragm Valve
- Type: Weir type / Straight-through type / Sanitary type
- Application: Corrosive fluid, sterile fluid, ultra-pure water, food & pharmaceutical process
Performance Parameters
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Nominal Diameter (DN): DN6 – DN300 / NPS 1/4” – 12”
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Pressure Rating: PN6, PN10, PN16, Class 150
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Working Temperature: -20°C to 220°C (depends on material)
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Body Material:
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Stainless Steel: SS304, SS316L
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Cast Iron, Ductile Iron
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Plastic: UPVC, CPVC, PVDF, PP
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Diaphragm Material: PTFE, EPDM, Silicone, FKM
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End Connection: Flanged, Threaded, Clamped, Welded
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Actuation Mode: Manual (Lever / Gear), Pneumatic, Electric
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Seal Level: Zero leakage, bubble-tight
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Design Standard: GB, ANSI, DIN, ISO, 3A, FDA, CE
Product Features
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Anti-corrosion
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Hygienic & non-pollution
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No dead angle
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Sterilizable (CIP/SIP)
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Long service life
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Easy maintenance
1. Classification & Name
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Weir Diaphragm Valve
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Straight-Through Diaphragm Valve
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Sanitary / Hygienic Diaphragm Valve
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Sterile / Aseptic Diaphragm Valve
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Plastic Diaphragm Valve
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Metal Diaphragm Valve
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Manual Diaphragm Valve
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Pneumatic Diaphragm Valve
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Electric Diaphragm Valve
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Flanged Diaphragm Valve
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Threaded Diaphragm Valve
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Clamped Diaphragm Valve
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Welded Diaphragm Valve
2. Application Fields
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Pharmaceutical & biotechnology
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Food & beverage
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Water treatment & environmental protection
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Chemical & petrochemical industry
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Semiconductor & electronics
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Pulp & paper industry
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Textile printing & dyeing
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Ultra-pure fluid systems
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Corrosive medium transportation
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Sterile & hygienic fluid systems
3. Related Keywords
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Diaphragm valve
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Diaphragm
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Valve body
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Bonnet
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Weir type
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Straight through
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Sanitary grade
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Sterile / aseptic
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PTFE diaphragm
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EPDM diaphragm
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Silicone diaphragm
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FKM diaphragm
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Anti-corrosion
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Zero leakage
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Non-pollution
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CIP / SIP
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Manual actuation
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Pneumatic actuation
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Electric actuation
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Isolation valve
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Control valve
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Shut-off valve
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No dead angle





