 |
| Quantity: | |
|---|---|
Double Eccentric Design
The disc and shaft are offset from the valve centerline, reducing friction and wear during operation. This design ensures bi-directional sealing and extends service life1011.
Superior Sealing
Utilizes resilient seats (e.g., EPDM, PTFE) or fire-safe metal seats for zero leakage. PTFE-lined seats resist chemicals and high temperatures up to 200°C (392°F)111.
Pneumatic Actuation
Compatible with ISO 5211 actuators for quick 90° operation, ideal for automation. Includes fail-safe options (spring-return) for critical applications611.
Lightweight & Compact
Up to 50% lighter than gate valves, reducing structural support costs110.
Corrosion Resistance
Constructed from materials like ductile iron, stainless steel (SS304/316), or CF8M for harsh environments (acids, alkalis, seawater)110.
Low Maintenance
Pin-less disc-shaft connection simplifies part replacement, while self-energized seats minimize wear11.
Oil & Gas: Pipeline isolation, refinery processes, and LNG handling1011.
Chemical Processing: Corrosive fluid control (acids, solvents) with PTFE-lined seats111.
Power Generation: Steam and cooling water systems in thermal plants10.
Water Treatment: Chlorine and ozone resistance in disinfection systems1.
HVAC: High-pressure steam and chilled water regulation11.
| Parameter | Details |
|---|---|
| Size Range | DN50 (2") to DN1200 (48") |
| Pressure Rating | ANSI Class 150/300, PN16/25/40 |
| Temperature Range | -29°C to +400°C (PTFE: -29°C to +200°C; metal seats: up to +400°C)11 |
| Materials | Body: WCB, CF8M; Disc: SS316 with hard coating; Seat: PTFE, EPDM, metal11011 |
| Actuator Standards | ISO 5211, ATEX (for explosive environments)611 |
| Flange Standards | ASME B16.5, EN 1092, DIN111 |
Regular Inspections
Check seals, disc alignment, and actuator function every 6–12 months611.
Lubrication
Apply high-temperature grease to the stem annually (if non-lubricated design)11.
Seat Replacement
Replace PTFE seats every 5–7 years; metal seats last longer but require inspection for erosion11.
Avoid Over-Tightening
Use torque wrenches during installation to prevent seat deformation6.
Certifications: Complies with API 609, ISO 5752, and fire-safe standards (API 607)1011.
Cost Efficiency: Lower lifecycle costs due to reduced maintenance and energy consumption110.
Customization: Options include gear operators, extended necks for insulation, and exotic alloys (e.g., Monel, Hastelloy)11.
Title Tags: Use primary keywords (e.g., "Wafer Double Eccentric Pneumatic Butterfly Valve | High-Performance & Fire-Safe").
Meta Descriptions: Highlight benefits like "Bi-directional sealing, ISO-certified pneumatic butterfly valves for corrosive fluids—explore now."
Header Tags: Structure content with H2/H3 headers like "Applications in Oil & Gas Industries" or "Maintenance Best Practices."
Image Alt Text: Include descriptive text (e.g., "Double eccentric butterfly valve installation diagram").
Backlinks: Partner with industrial directories or blogs (e.g., chemical processing forums)10
Double Eccentric Design
The disc and shaft are offset from the valve centerline, reducing friction and wear during operation. This design ensures bi-directional sealing and extends service life1011.
Superior Sealing
Utilizes resilient seats (e.g., EPDM, PTFE) or fire-safe metal seats for zero leakage. PTFE-lined seats resist chemicals and high temperatures up to 200°C (392°F)111.
Pneumatic Actuation
Compatible with ISO 5211 actuators for quick 90° operation, ideal for automation. Includes fail-safe options (spring-return) for critical applications611.
Lightweight & Compact
Up to 50% lighter than gate valves, reducing structural support costs110.
Corrosion Resistance
Constructed from materials like ductile iron, stainless steel (SS304/316), or CF8M for harsh environments (acids, alkalis, seawater)110.
Low Maintenance
Pin-less disc-shaft connection simplifies part replacement, while self-energized seats minimize wear11.
Oil & Gas: Pipeline isolation, refinery processes, and LNG handling1011.
Chemical Processing: Corrosive fluid control (acids, solvents) with PTFE-lined seats111.
Power Generation: Steam and cooling water systems in thermal plants10.
Water Treatment: Chlorine and ozone resistance in disinfection systems1.
HVAC: High-pressure steam and chilled water regulation11.
| Parameter | Details |
|---|---|
| Size Range | DN50 (2") to DN1200 (48") |
| Pressure Rating | ANSI Class 150/300, PN16/25/40 |
| Temperature Range | -29°C to +400°C (PTFE: -29°C to +200°C; metal seats: up to +400°C)11 |
| Materials | Body: WCB, CF8M; Disc: SS316 with hard coating; Seat: PTFE, EPDM, metal11011 |
| Actuator Standards | ISO 5211, ATEX (for explosive environments)611 |
| Flange Standards | ASME B16.5, EN 1092, DIN111 |
Regular Inspections
Check seals, disc alignment, and actuator function every 6–12 months611.
Lubrication
Apply high-temperature grease to the stem annually (if non-lubricated design)11.
Seat Replacement
Replace PTFE seats every 5–7 years; metal seats last longer but require inspection for erosion11.
Avoid Over-Tightening
Use torque wrenches during installation to prevent seat deformation6.
Certifications: Complies with API 609, ISO 5752, and fire-safe standards (API 607)1011.
Cost Efficiency: Lower lifecycle costs due to reduced maintenance and energy consumption110.
Customization: Options include gear operators, extended necks for insulation, and exotic alloys (e.g., Monel, Hastelloy)11.
Title Tags: Use primary keywords (e.g., "Wafer Double Eccentric Pneumatic Butterfly Valve | High-Performance & Fire-Safe").
Meta Descriptions: Highlight benefits like "Bi-directional sealing, ISO-certified pneumatic butterfly valves for corrosive fluids—explore now."
Header Tags: Structure content with H2/H3 headers like "Applications in Oil & Gas Industries" or "Maintenance Best Practices."
Image Alt Text: Include descriptive text (e.g., "Double eccentric butterfly valve installation diagram").
Backlinks: Partner with industrial directories or blogs (e.g., chemical processing forums)10
