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Pneumatic butterfly valve with soft seat

Size: 1.DN40~DN300(1.5”~12”)
2.DN350~DN600(14”~24”)
3.DN700~DN1200(28”~48”)
Material:
Body:DI、WCB、LCC、CF8、CF8M
DIsc:DI、CF8、CF8M、CF3M、2205、2507、1.4529、C95400、C95500、C95800
Seat:EPDM、EPDMH、NBR、X-NBR、FKM、PTFE、NR、CSM
Stem:SS420、SS431、SS630、SS316
Pressure:PN6、PN10、PN16、CL150/150LB
Temp:-20℃~150℃
Driver:Pneumatic actuator
Parts name Material
Body Ductile cast iron,cast steel,Alloy steel,stainless steel
Disc ductile cast steel,cast steel,stainless steel andspecial material
Seal ring EPDM、PTFE、Viton...
Stem 2Cr13、Stainless steel
Packing O ring,flexible graphite
Availability:
Quantity:

Performance Features & Advantages

  1. Superior Sealing Performance

    • Soft seats (EPDM, NBR, PTFE) ensure zero leakage even under fluctuating pressures and temperatures58.

    • Resilient materials adapt to minor pipeline misalignments, reducing wear3.

  2. Corrosion and Chemical Resistance

    • PTFE-lined seats withstand aggressive media like acids, alkalis, and solvents, ideal for chemical and pharmaceutical industries86.

  3. Automation Compatibility

    • Pneumatic actuators (ISO 5211-compliant) enable quick 90° operation, with fail-safe options for critical systems712.

  4. Lightweight and Compact Design

    • 30–50% lighter than gate valves, reducing installation costs and structural load1012.

  5. Low Maintenance

    • Minimal moving parts and easy seat replacement extend service life38.


Applications

  • Water & Wastewater Treatment: Chlorine and ozone resistance in disinfection systems58.

  • Chemical Processing: Handling corrosive fluids like acids and solvents68.

  • Food & Beverage: FDA-compliant materials for hygienic processes511.

  • HVAC: Regulating steam and chilled water in commercial systems12.

  • Pharmaceuticals: High-purity fluid control with PTFE seats8.


Technical Specifications

Parameter Details
Size Range DN40 (1.5") to DN1200 (48")
Pressure Rating PN10/16, ANSI 150/300
Temperature Range -20°C to 200°C (-4°F to 392°F)
Materials Body: Ductile iron, SS304/316; Disc: SS304/316; Seat: EPDM, NBR, PTFE
Actuator Standards ISO 5211, ATEX (for explosive environments)
Certifications ISO 9001, API 609, FDA

Maintenance Tips

  1. Regular Inspection

    • Check seat integrity and disc alignment every 6–12 months to prevent leaks38.

  2. Lubrication

    • Apply food-grade grease to the stem annually for smooth operation7.

  3. Seat Replacement

    • Replace PTFE/EPDM seats every 5–7 years in high-wear applications8.

  4. Avoid Over-Tightening

    • Use torque wrenches during installation to prevent seat deformation3.


Why Choose Pneumatic Soft Seat Butterfly Valves?

  • Certified Safety: Complies with ATEX, FDA, and ISO standards for hazardous environments812.

  • Cost Efficiency: Reduced downtime and maintenance costs compared to metal-seated valves10.

  • Customization: Options include fire-safe designs, gear operators, and exotic materials (e.g., Viton®)611.


SEO Content Strategy

  1. Title Tags: Use keywords like "Pneumatic Soft Seat Butterfly Valve | Zero-Leakage & FDA-Compliant".

  2. Meta Descriptions: Highlight benefits (e.g., "Durable, corrosion-resistant pneumatic valves for chemical and food industries—ISO-certified").

  3. Header Tags: Structure with H2/H3 headers like "Applications in Pharmaceutical Industries" or "Maintenance Best Practices".

  4. Image Alt Text: Include descriptive phrases (e.g., "PTFE-lined pneumatic butterfly valve diagram").

  5. Backlinks: Partner with industrial directories or blogs (e.g., chemical engineering forums)10


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