Product Information

FIG. 942 Double Orifice Air Release Valve

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Usage for waste & sewage water.

Double orifice air valve that combines both large orifice & small orifice functions within one unit. The large orifice allows air to be expelled from the system during filling of a pipeline and admit air back into the system whenever sub-atmospheric pressure occurs.

Air is vented from the system until liquid enters the valve and lifts the float on its pivot which lifts the plug against the large orifice seat. Pressure within the body holds the plug firmly against the seat. In the event of sub-atmospheric pressure in the system, the liquid level drops causing the float and plug to lower and allow the admission of air.

During normal working of the main the valve releases the air which accumulates under pressure, without escape of fluid. With the main in operation, the float normally holds the orifice button against its seat.

As air enters the body the fluid level is depressed until a level is reached when the float drops, which allows air to vent through the small orifice. The consequent rise in fluid level returns the float and orifice button to its seat.
Efficient low pressure sealing at 0.2bar.
50mm (2″) – 150mm (6″) sizes.

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With over 30 years of experience, GA Valves Sales Ltd is a trusted leader in the design and production of precision-engineered valves and related products.

Our path has been defined by a commitment to excellence and the delivery of superior solutions. We specialise in producing high-quality valves that meet industry standards, with a focus on precision and reliability that has secured our place as a leader in the field.

Discover our extensive product range and experience the quality that over 30 years of expertise brings to each valve we provide.

Our Product Range Includes:

Gate Valves
Air Valves
Exotic Material Air Valves
Dorot Air Valves
Dorot Control Valves
Butterfly Valves
Knife Gate Valves
Non Return/ Check Valves
Diaphragm Valves
Solenoid Valves
Industrial/Process Valves

GA Valves provides a wide selection of premium valves and components built to meet industry standards. With over 30 years of expertise, we deliver specialised solutions for diverse applications, including water, wastewater, petrochemical, construction, and fire protection. Rely on GA Valves for reliable products that support safe and efficient fluid control.

GA Valves is here to help. Whether you have questions, need assistance, or wish to learn more about our products and services, please don’t hesitate to contact us.

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Articles/Press Releases

11/11/2024 - Optimising Industrial Operations with Aluminium Bronze Air Release Valves
Aluminium bronze air release valves have become increasingly popular in recent years due to their many benefits in industrial applications.

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Company details for GA Valves Sales Ltd

GA Valves Sales Ltd