Wafer Type Butterfly Valves

The Wafer Type Butterfly Valve is designed for efficient flow control and isolation in various industrial applications, offering a compact, lightweight, and cost-effective solution. Its wafer body design fits snugly between two flanges and is held in place by flange bolts, ensuring a secure fit without the need for additional fasteners.

Category:
Pressure Class

150

,

PN10

,

PN16

This design is ideal for applications where space and weight are critical factors. The valve’s rotating disc allows for precise flow regulation, making it suitable for a wide range of media, including water, air, gases, and corrosive chemicals. It is commonly used in industries such as water treatment, HVAC, chemical processing, and food and beverage.

Specification

Details

Valve Size

2" to 48" (DN 50 to DN 1200)

Pressure Rating

Standard pressure ratings of PN 10, PN 16, and ANSI Class 150, suitable for a wide range of industrial applications.

Body Material

  • Ductile Iron for general applications.
  • Stainless Steel for increased corrosion resistance.
  • Cast Iron for water and low-pressure applications.

Disc Material

  • Stainless Steel for corrosive environments.
  • Ductile Iron with epoxy coating for improved durability.
  • Aluminum Bronze for seawater applications.

Seat Material

Elastomeric seats like EPDM, NBR, or PTFE to provide a tight seal for leak-free operation.

End Connections

Wafer design for fitting between flanges, compatible with multiple flange standards (ANSI, DIN, JIS).

  • Wafer Type Design: The wafer body fits between two flanges and is secured by the bolts of the piping flanges, making it easy to install or remove without requiring extra support. This design is particularly useful for tight spaces and lightweight piping systems.
  • Quick Operation: A simple 90-degree rotation of the disc opens or closes the valve, providing quick and efficient flow control or isolation.
  • Bi-Directional Flow: The valve is designed to handle flow from either direction, making it versatile for various piping configurations.
  • Disc Options: Available in materials such as stainless steel, ductile iron, and other coatings to resist corrosion and wear, ensuring compatibility with different types of fluids and gases.
  • Seat Options: The valve features a soft seat (such as EPDM, NBR, or PTFE) to provide leak-tight shut-off, or metal seats for higher temperatures and more abrasive applications.
  • Compact and Lightweight: Its compact design reduces installation footprint and makes it easier to handle compared to other valve types.
  • Corrosion Resistance: Available in materials like ductile iron, stainless steel, and aluminum bronze for enhanced corrosion resistance in harsh environments.

Testing & Certification:

  • Hydrostatic testing in compliance with API 598.
  • ISO 9001 certified manufacturing for consistent quality and performance.
  • Fire-safe design options available for high-temperature applications as per API 607.