The Beaver F21–F24 Butterfly Valve is a high-performance valve with a double-offset geometry. In this design, the stem is behind the disc (first offset) and slightly off the pipe centreline (second offset). This minimises the disc’s contact with the seat during opening and closing, resulting in less wear.
This is a highly reliable valve used for on/off or modulation in critical services in chemical and petrochemical, power and utilities, and hydrocarbon processing and storage applications.
The valve comes with two seat options: wear-resistant soft seat, which offers bubble-tight zero leakage, and temperature-resistant metal seat, which has an allowable leakage rate. It’s available with a wafer or lugged body design in Class 150 and 300.
Technical specifications
Brand
Model
F22 (Lugged Class 150)
F23 (Wafer Class 300)
F24 (Lugged Class 300)
Size range
Pressure class
Temperature range
Actuator options
Gear operated
Pneumatic
Electric
Material specifications
Body
Duplex stainless steel
Titanium
Nickel alloy
Zirconium
Austenitic stainless steel
Copper alloy
Seat
RPTFE
Metal
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