Ductile Iron Wafer Pattern Butterfly Valve Low Torque EPDM

This ductile iron wafer pattern butterfly valve is designed for smooth, efficient, and reliable flow control across a wide range of industrial applications. With its low-torque design, EPDM liner, and wafer-style body, it offers effortless operation, reduced actuator load, and long-lasting durability. Ideal for water, air, and general-purpose fluids, this valve provides dependable sealing and easy integration into new or existing systems.

Technical Data

Body Material: Epoxy-coated ductile iron, offering high mechanical strength, excellent corrosion resistance, and a long service life.
Disc Material: 316 stainless steel for superior resistance to corrosion, ensuring stable performance with water and process media.
Liner/Seat Material: EPDM (Ethylene Propylene Diene Monomer) elastomer, providing an excellent seal for water, air, and neutral fluids. Suitable for operating temperatures from 10 °C to +130 °C.
Pattern / Flange Compatibility: Wafer pattern design suitable for mounting between multiple flange standards including PN10, PN16, and ANSI 150.
Mounting Standard: ISO 5211 top flange for direct mounting of actuators or gearboxes, supporting both manual and automated control.
Pressure Rating: PN10 (10 bar) maximum working pressure under standard service conditions.
Temperature Range: 10 °C to +130 °C (depending on service conditions and media).
Size Range: Typically available in 2", 2½", 3", 4", 5", 6", and 8" diameters.
Design Feature: Low-torque operation achieved through optimised disc geometry and precision-moulded EPDM liner, reducing effort required for actuation.

Why This Valve Stands Out

Effortless operation: The low-torque design ensures smooth, easy movement, ideal for manual operation or when smaller actuators are required.
Space-saving design: The wafer-style body allows compact installation between flanges, saving space and reducing weight without sacrificing performance.
Durable construction: The combination of ductile iron body and stainless steel disc provides the strength and corrosion resistance needed for long-term reliability.
Reliable sealing: The EPDM liner provides a tight, flexible seal for a variety of fluids while maintaining elasticity over time.
Automation ready: ISO 5211 top mounting allows quick integration with electric or pneumatic actuators for future automation upgrades.

Installation and Application Tips

• Check that the valves wafer body and bolt holes match your flange standard before installation.
• Ensure pipe alignment is correct to prevent unnecessary stress on the valve and maintain proper sealing.
• For actuated systems, verify torque requirements, this valves low-torque design allows smaller, more economical actuators.
• Confirm that the process fluid is compatible with EPDM (ideal for water, air, and mild chemicals; not suitable for oils or strong solvents).
• Use even bolt torque when installing between flanges to avoid distortion and ensure uniform sealing pressure.
• Perform routine inspections of the disc and liner, especially in systems that cycle frequently or carry particulates.

The Ductile Iron Wafer Pattern Butterfly Valve Low Torque EPDM is a versatile, high-performance valve that combines strength, precision, and ease of operation. With its durable materials, reduced torque requirement, and automation compatibility, its a practical and cost-effective solution for modern water and process control systems.