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Double Orifice Air Release Valve Dn100 Pn16 Price - China

price: contact company for price

Ductile Iron DIN3352 flanged Double Orifice Air Valve also name air

release valve, air relief valve

Air valve body materials: ductile iron

Air Valve Design standard: DIN3352

Flange standard: DIN 2501

Test standard: BS6755

Work temperature: NBR≤80°C, EPDM≤120°C

Air valve DN size: DN100 mm

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 water enters the valve and lifts the float against its seat, ensuring a tight seal. In the event of sub- atmospheric pressure in the system, the water level drops causing the float to fall from its seat and allow the admission of air.

During normal working of the main the small orifice releases the air which accumulates under pressure. With the main in operation, the float is normally against its seat. As air enters the chamber body the water level is depressed until a level is reached when the float drops from its seat, which allows air to escape. The consequent rise in water level returns the float to its seat.


Company Contact:


  • Phone: 18959701391

  • Address: Luncang Town, Quanzhou, China

  • Email: Email


Published date: November 30, 2015 -

  • Business Description: Valve Manufacturing company in China. Found in 2001. We manufacture gate valve , butterfly valve , check valve , air release valve , Y strainer valve. Our price is competive.gate valve, butterfly valve , check valve , air relase valve , Y strainer valve

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