Delta HP Air Valve
Size range: NPS 2"~8"
Pressure ratings: 150LB / 300LB / PN16
Working temperature:-29°C ~ +120°C.
Suitable Medium:Slurry / Sea Water/ Sewage
Body Material: ASTM A105
Lined:: EPDM / Ebonite
Trim Material: SS316L

The Delta HP Air Valve are designed for many applications, including slurry and water. The large port design prevents clogging while the HI-WEAR seat and float design offer a large sealing area. An Anti­Surge Float option is available to limit discharge rates to 3.5kPa differential.

This product is used for the highest point of the pipeline to exclude the gas and clear the pipeline,  if not installed Air Valve, the liquid in the pipe will produce dynamic thermal cause gas to form a section of road, so that the water pipeline yield can not meet the design requirements, and secondly, power failure, pump stopping will appear when pipeline is operating ,the negative pressure can cause pipe vibration or broken, Air Valve will quickly let air into the pipe to prevent pipe vibration or broken.

1.Suitable for extreme conditions: Slurry pipelines, waterlines, sewage, and high corrosion condition. etc
2.Body material carbon steel ASTM A105 lined EPDM / Ebonite
3.Full bore design to prevent clogging.
4.Reduces pressure drop.
5.HI-WEAR primary seal allows drip tight sealing under all conditions.
6.Floating ball is non-corrosive stainless steel A276 SS316L
7.Simple construction.
9.CWP of 20, 50 and 100 bar.
10.Coating suitable for highly aggressive environments.
11.Convenient maintenance.
12.The attached Screen Filtering impurities

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 / BS EN 1092
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