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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

Beaver

Model

F21 (Wafer Class 150)
F22 (Lugged Class 150)
F23 (Wafer Class 300)
F24 (Lugged Class 300)

Size range

DN50–1200 (2–48”)

Pressure class

Class 150 and 300

Temperature range

ASME B16.34

Actuator options

Lever
Gear operated
Pneumatic
Electric

Material specifications

Body

WCB carbon steel
Duplex stainless steel
Titanium
Nickel alloy
Zirconium
Austenitic stainless steel
Copper alloy

Seat

PTFE
RPTFE
Metal

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1. Tell us what you need

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2. Choose the right solution

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3. Get the job done

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