Butterfly Valve
Butterfly Valve
Knife Gate Valve

Butterfly Valve

What is a double offset butterfly valve?

A high performance butterfly valve. This valve has two stems offset from the centre. It is capable of providing accurate, stable, throttle flow control.

Why use a triple offset butterfly valve?

The triple offset design is used where bubble tight shut-off, zero leakage is required in common applications such as steam, chemical, refining, and offshore oil and gas. They offer a lower cost, lower torque option, than alternative style metal seated valves. It is low maintenance and offers an extended valve life.

What is a triple offset butterfly valve?

A high performance butterfly valve. This valve has three offsets from the centre. The third offset is the elliptical seat geometry. This along with the two eccentric shaft offsets, allows the disc to seal against the seat with no friction. This seat design allows for uniform sealing, and thus bi-directional tightness at maximum differential pressure.

What is a rubber lined / concentric butterfly valve?

Concentric butterfly valves also known as ‘resilient seated’ butterfly valves are suitable for a wide range of applications such as cooling water, chemicals, brine,oil mud, hydrocarbons, wastewater, firewater, seawater, natural gas and flare gas amongst many others. The stem is centred in the middle of the disc and the disc centred in the valve body. The disc is constantly in contact with valve seat. Seats can include EPDM, NBR, Viton, Silicon, Teflon, Hypalon and neoprene.

What are butterfly valves used for?

Butterfly valves are used to stop, start, and regulate fluid flow.

What is a butterfly valve?

A Butterfly valve is a quarter-turn rotary motion valve with advantage of low pressure drop and high-pressure recovery