Wafer Butterfly Valves
Wafer butterfly valves are compact, lightweight quarter-turn valves designed for efficient flow isolation and control in a wide range of piping systems. Installed between mating pipe flanges, their space-saving design minimizes installation requirements while providing reliable operation, low pressure drop, and economical flow control.
Available in a variety of body, disc, stem, and seat materials, wafer butterfly valves can be configured for water, air, oil, gas, steam, chemicals, and other compatible media. Manual lever, gear-operated, pneumatic, and electric actuation options allow the valve to be configured for both simple isolation and automated process control.
Key Benefits
Compact, Space-Saving Design: The wafer-style body installs between mating flanges and requires less space than many traditional valve designs.
Lightweight Construction: Reduced valve weight simplifies handling, installation, and maintenance while helping minimize the load placed on the piping system.
Fast Quarter-Turn Operation: Approximately 90° rotation provides quick and straightforward opening and closing for efficient flow isolation.
Reliable Shutoff: Resilient and metal-seated configurations provide dependable sealing performance when properly selected for the fluid, pressure, and temperature.
Low Pressure Drop: The streamlined disc design allows efficient flow through the valve when fully open, helping minimize unnecessary system pressure losses.
Versatile Flow Control: Butterfly valves can provide both on/off isolation and throttling service when the valve and actuator are properly selected for the application.
Easy Installation & Maintenance: The compact wafer configuration simplifies installation between flanges and provides convenient access for inspection, servicing, and replacement.
Typical Applications
Water Cooling Systems
Chilled Water Systems
Cooling Tower Systems
Heat Exchanger Systems
Process Water Systems
Recirculating Water Systems
Utility Water Systems
Cooling Skids
Pump Systems
Water Treatment Systems
CIP Water Systems
Equipment Isolation
Cooling Loops
Construction & Materials
Body Material: 304/316 stainless steel
Disc Material: 304/316 stainless steel
Seat Material: Buna-N, EPDM, PTFE, RPTFE, and Viton
End Connections: Wafer-style, installed between mating pipe flanges
Actuation: Manual handle, gear operated, pneumatically actuated, electrically actuated
Size Range: 1½ to 24 inch, with larger sizes available depending on configuration
Performance Specifications
Maximum Working Pressure: Up to 285 psi, depending on configuration
Maximum Working Temperature: Up to 500°F (260°C), depending on configuration
Flow Capacity: Cv 20–7,000+, depending on configuration
Pressure Drop: Low pressure drop when fully open, dependent on configuration
Quality & Compliance
Wafer butterfly valves are manufactured and tested to applicable industry standards to ensure reliable pressure containment, shutoff performance, dimensional accuracy, and material quality. Testing, material certifications, inspection reports, and compliance documentation can be provided according to project and application requirements.