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Large Orifice Auto Air Release Valve Flange End PN10 PN16 PN25 DN300 12 Inch

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Large Orifice Auto Air Release Valve Flange End PN10 PN16 PN25 DN300 12 Inch

Brand Name : OEM
Model Number : QB2 / KQRX
Certification : ISO 9001
Place of Origin : Shanghai , China
MOQ : 1pcs
Price : negotiation
Payment Terms : T/T advance or L/C at sight
Supply Ability : 90,000pcs per month
Delivery Time : 1usually within 35 days after received your payment
Packaging Details : Usually packing by plywood case suit for sea delivery
Product Name : air valve
Application : Water, oil, gas etc.,
Size : DN15 ~DN300
Pressure : PN16 / 150lbs / JIS10K
Standard : DIN / BS / AWWA / JIS
Temperature : < 80 C
Body : Cast iron/ ductile iron/ stainless steel
Floating ball : Stainless steel/ PTFE/ Plastic
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DN300 12 Inch Ductile Iron Automatic Large Orifice Air Valve Flange End For Water


Flanged end deminsion: according as ISO7005.2 PN16/PN10

working pressure: 1.0MPa/ 1.6Mpa
seal test: 1.1MPa /1.76Mpa
strength test: 1.5MPa / 2.4Mpa

1, body/bonnet: cast iron/ ductile iron
2, floating ball: SS304 / PTFE
3, vent: steel, 59# brass
4, seal ring: EPDM
5, bolt/nut: A3

Standard ; DIN BS ANSI
Working Pressure : PN10 PN16 PN25
Material : Cast Iron and Ductile Iron

1 ) Size: 1-1/2" to 12"
2 ) Class: PN10, PN16.125LB, 150LB
3 ) Type: NBR Floating Ball, Stainless steel /Brass Spindle

All our products are designed and manufactured strictly in conformity with the standard of API, ANSI,

AWWA, JIS, BS and DIN, etc. Most of our manufacturers have obtained ISO 9001, API 6D, TUV and

CE certificates to ensure the quality stability of the products. We provide EN10204 3.1B. Mill Test

Certificate for all our supplied products.


The air release valves will be installed at sections of the pipeline

where air pockets would be formed.

The valves shall be of robust construction of double orifices with

an integral isolating valve and

flanged base for connection to a valve stem that connects the air

valve to the main pipeline.

The bore leading to the flange base shall be in accordance to the size of

the main pipeline and the expected accumulation of air.

Competitive Advantage:


• Coating Powder Epoxy Min. 250 micron

• Three Way Functioning:

- Release of large volumes of air during pipeline fill.

- Allows in flows of large volumes of air when pipe is emptied.

- Release of air under pressure

• Low Maintenance

• Working pressure Min. 0.1 bar Max. 16 bar

• Hydraulic test performed under 1.5xPN pressure


• For water (Not sewage) and neutral liquids.

• Nominal Pressure: PN 16/25 & PN 25/40

• Working Temperature: -10˚C to 120˚C

Product Tags:

air relief valve


water air release valve

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Large Orifice Auto Air Release Valve Flange End PN10 PN16 PN25 DN300 12 Inch Images

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