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The Beaver F41 Butterfly Valve has a concentric design, with the stem centred in the disc and a disc centred in the bore. The disc minimises resistance to the fluid which, coupled with the valve’s symmetric shape, provides high flow values with low pressure drop.

This valve allows bidirectional sealing with a resilient seat that is bonded to the body. This ensures complete shut-off with no leakage at the full pressure rating.

The high-strength one-piece through stem design resists corrosion and works at a rated pressure of 10 or 16 bar.

Technical specifications





Size range

DN50–600 (2–24”)

Pressure class

10–16 bar (145–232 psi)
Contact us for higher pressures

End connections

Flanged to suit ASME Class 125/150 and AS2129 Table D and E
Contact us for other options available

Actuator options

Lever with notch plate
Gear operated

Material specifications


Ductile iron


316 stainless steel
Duplex and Super Duplex stainless steel
Nylon-coated ductile iron
Contact us for other materials available

Seat and temperature range

EPDM (-10°C to 120°C)
NBR (-10°C to 100°C)

How we help you choose the right valves:

1. Tell us what you need

Talk to our experts about your application, which valves and controls you need, and any repair or maintenance concerns.

2. Choose the right solution

We’ll do all the analysis, discuss the options with you, and make a recommendation—the valves we’d choose in your shoes.

3. Get the job done

Get the right valves for the job, fitted out, tested, and ready to install. We’ve got your back with ongoing repairs and maintenance.

Talk to a valve specialist

Got questions? Need advice? Our valve specialists can give you practical advice to help you get on with the job.

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Actuators. Positioners. Controls. Valve repairs. Whatever you need, our valve workshop can handle it.