Specialityvalve is one of the top Double Orifice Air Release Valve Manufacturer in India. A double orifice valve has one large outlet and one small outlet. The large outlet admits air in large quantities while a pipe section is being drained. It is also responsible for let out the air during the pipe filing operation. The small wayout is responsible for let out a small amount of accumulated air during the pipeline’s operation.
We can choose the air release valve by selecting the water distribution and sewage systems. Air valves play vital roles in sewage networks. The amount of air mount in wastewater systems is far greater than that in water passing on networks. If air valves are not present on the pipes, the confine air can significantly increase the energy needed to run the sewage network.
In addition, one of the major gases that evolved in wastewater systems and it is highly corrosive. It can attack and weaken pipes if it is not properly vented out to the atmosphere.

Advantages of double orifice air release
• Emptying of pipes
• Filling pipes
• It enables larger and smaller air flows from the pipe
• Valves does not require additional stop valve for isolation purpose

Disadvantages of double orifice air release
• Reduction in effective area
• Inaccurate readings on gauges and hydrometer
• Cause damage to internal rotating parts of gauges

Applications of double orifice air release
• Sewage pipelines
• Wastewater pumping stations
• Residual and sewage water
• Municipal and industrial wastewater treatment plants

Body Material- ductile iron, cast iron, WCB,WCC, WC6, LCB, LCC
Size- 1/2’’ to 8’’
Pressure No- PN6 to PN25
Class- 150 to 300

https://www.specialityvalve.com/product-category/double-orifice-air-valve/