Multi-Flange Wafer Pattern Butterfly Valve Stainless Steel Disc, PTFE Liner

This multi-flange wafer pattern butterfly valve is engineered for precision, reliability, and exceptional chemical resistance. Combining a ductile iron body, stainless steel disc, and PTFE liner, it provides dependable sealing and long service life in demanding industrial and chemical applications. The valves multi-flange design makes it easy to install across different flange standards, offering maximum flexibility and compatibility for system designers and maintenance teams alike.

Technical Data

Body Material: Epoxy-coated ductile iron, providing robust mechanical strength and excellent corrosion protection.
Disc Material: 316 stainless steel (CF8M equivalent), delivering superior resistance to corrosion and wear in aggressive or high-purity process environments.
Liner/Seat Material: PTFE (Polytetrafluoroethylene), offering outstanding chemical resistance, low friction, and smooth operation across a broad temperature range.
Flange Compatibility: Multi-flange wafer pattern suitable for PN6, PN10, PN16, ANSI 150, and Table D/E flanges, simplifying integration with varied systems.
Mounting Standard: ISO 5211 top pad for direct actuator or gearbox installation, enabling both manual and automated operation.
Pressure Rating: PN16 for sizes up to 16", and PN10 for larger sizes up to 24".
Temperature Range: 10 °C to +120 °C (depending on application and media).
Size Range: Available from 1½" (DN40) up to 24" (DN600).
Operation: Manual lever or gearbox as standard, with optional pneumatic or electric actuation.

Why Its a Smart Choice

Outstanding chemical resistance: The PTFE liner provides one of the most chemically inert sealing materials available, making this valve ideal for corrosive or aggressive fluids.
Smooth, low-torque operation: PTFEs low-friction properties reduce operating torque and wear, extending the life of the valve and simplifying actuation.
Flexible installation: The multi-flange wafer design allows the valve to be used across different international flange standards, reducing stock variety and simplifying maintenance.
Durable construction: The combination of a ductile iron body and stainless steel disc ensures strength, reliability, and long-term performance in both industrial and process environments.
Automation ready: ISO 5211 compatibility allows for quick and direct actuator mounting, supporting future upgrades without modifying the valve body.

Installation and Application Tips

• Confirm flange standards and bolt patterns before installation to ensure proper fit and seal alignment.
• Apply uniform bolt torque during installation to maintain sealing integrity and prevent body distortion.
• Check fluid compatibility with PTFE, this material is ideal for most chemicals but may not suit abrasive or high-pressure steam applications.
• When automating, confirm that actuator torque ratings match the valves size and pressure specifications.
• Ensure the valve is properly supported and aligned within the pipeline to prevent mechanical stress on the wafer body.
• Conduct regular inspections of the disc and liner, particularly in systems handling corrosive or high-cycle applications, to ensure continued reliable operation.

The Multi-Flange Wafer Pattern Butterfly Valve with Stainless Steel Disc and PTFE Liner is a premium, versatile solution for process industries handling challenging fluids. With exceptional chemical resistance, broad installation compatibility, and a robust construction, its the ideal choice for chemical plants, water treatment systems, and general industrial applications demanding durability and dependable performance.