Omega Double Effect Air Valve-WCB
Size range: Flange NPS 2"~8"(DN50~200)
Threaded: NPS 1 "~2"
Pressure ratings: 150LB / 300LB PN16 / PN25 / PN40
Working temperature:-29°C ~ +120°C.
Suitable Medium:Oil, water, and Non-corrosive chemical. etc
Body Material: ASTM A216 WCB ASTM A276 SS304 ASTM A276 SS316
Trim Material: A276 SS316
Seat: NBR / Viton

Omega double effect air valve is a typical design, on the basis of this design, spawned many other air valve product. Omega double effect air valve provide 3 functions:
1.Large air release during fi lling of the pipeline.
2.Small air release under pressurized pipeline.
3.Large air intake during draining of the pipeline.

1.Advanced design with simple mechanism
2.Smooth cage outside of the float, keep floating ball moving in specified guide rail.
3.High venting capacity, the capacity of venting and suction is better than normal two holes air valve.
4.Suitable for conditions: Oil pipelines, waterlines, clean water, irrigation, and Non-corrosiveness chemical pipelines, etc.
5.Floating ball is non-corrosive stainless steel A276 SS316. Stainless steel floating ball is safe and reliable with long life
6.Maintenance can be easily performed from the top without removing the air valve from the pipe.
7.Coating suitable for highly aggressive environments(Epoxy).

1.Design & Manufacture standard as to: ASME B31.3 ASME B16.34
2.Height dimension (H)  standard as to: MFR-STD
3.Flange dimension conforms as to: ASME B16.5(150LB/300LB) BS EN 1092(PN16/25/40) NPT Threaded Standard as to: NPT ：ASME B1.20.1 BSPT：ISO 228
4.Testing And Inspection as to: API 598
5.Pressure-temperature conforms as to: ASME B16.34
6.Anti Corrosion as per NACE MR-0175(2002) requirement