epdm butterfly valve Description
EPDM butterfly valve is a butterfly valve with ethylene propylene diene rubber (EPDM) as the core sealing material. It uses the high elasticity and corrosion resistance of rubber to achieve reliable sealing and flow control of pipeline media. Its core features include:
Material properties: EPDM has excellent ozone resistance, weather resistance and weak acid/alkali resistance, applicable medium pH range 1~13, temperature coverage -40℃ to 150℃;
Sealing form: Rubber-to-rubber soft seal or composite seal (EPDM+stainless steel support ring), leakage rate ≤0.01%.
Performance advantages
Corrosion resistance: Resistant to corrosive media such as sulfuric acid and hydrofluoric acid, avoiding electrochemical corrosion; Anti-ultraviolet and ozone aging, suitable for long-term outdoor use.
Health and safety: Food-grade EPDM meets FDA standards and is suitable for aseptic pipelines in the pharmaceutical and food industries (surface roughness Ra≤0.8μm); Non-toxic and pollution-free, ensuring the purity of the medium.
Easy to operate:
Low torque design (torque ≤15N·m below DN300), easy manual operation;
Supports pneumatic/electric drive, pneumatic opening and closing time ≤3 seconds, suitable for emergency cut-off scenarios.
epdm butterfly valve specification
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Name of product
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EPDM seat butterfly valve
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Size
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DN50-DN300
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Body
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stainless steel 304
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Pressure
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PN10/16
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Temp
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-20~120℃
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Suitable medium
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Water,neutral liquid,etc.
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Application
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Municipal construction, water conservancy project, electric power, water supply and drainage, water treatment, etc.
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Power
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Handle,Turbine box,Pneumatic actuator,Ecectric actuator
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Design
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GB/T12238
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Face to face
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GB/T12221
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Top flange
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ISO 5211
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Pressure test
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GB/T 13927
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Port
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Tianjingang, Shanghaigang,or negotiate,etc.
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Transport
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By Air, Sea, Express, Ground,etc.
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epdm butterfly valve
Applications
Water treatment system: municipal water supply, sewage plant pipelines, resistant to corrosive wastewater containing chloride ions; Desulfurization project: flue gas desulfurization pipelines (such as D641J-16C model), resistant to acidic media erosion; Food and pharmaceutical: aseptic fluid transportation (such as syrup, pure water), meeting sanitary requirements.
Adaptation drive and selection points
Drive mode: Manual type: DN50-DN400 conventional caliber, recommended clamp connection (such as D71X-16); Pneumatic/electric type: DN≥600 large caliber or automation control scenario, support PLC linkage.
Selection parameters: Pressure level is preferably PN10/PN16, and the upper temperature resistance limit of EPDM (≤150℃) needs to be confirmed for high temperature conditions; The integrity of the rubber lining layer needs to be checked regularly in the corrosive medium environment (crack depth＞0.5mm must be replaced).
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