S-020 HC S-022 HC S-024 HC | High Capacity Automatic Air Release Valve


  • Product Catalog:
  • Product Drawings:
  • Install & Maintenance:
PN 16 PN 25 PN 40


The S-020/2/4 HC automatic air release valve discharges accumulated air/gas from the system while it is operating under pressure. The presence of air/gas in the system can reduce the effective cross sectional flow area, resulting in increased pressure loss and deceased flow. Unwanted air/gas may also cause water hammer and metering inaccuracies, while hastening corrosion.

The S-020/2/4 HC automatic air release valve builds an air/gas pocket inside the valve body, separating the liquid with its solid particles from the sealing mechanism, ensuring a leak-free seal.

Product Features

- Working pressure range: S-020 HC : 0.05-16 bar (PN16)

S-022 HC : 0.05-25 bar (PN25)

S-024 HC: 0.05 – 40 bar (PN40)

- Testing Pressure: S-020 HC : 25 bar

S-022 HC : 40 bar

S-024 HC : 64 bar

- Maximum working temperature: 60° C.

- Maximum intermittent temperature: 90° C.

Application Range

- Size range: 2”– 4”.

- These valves are manufactured with flanged ends to meet any requested standard

- The 2” valve is also available with a BSP or NPT male threaded connection.

- Valve body coating: fusion bonded epoxy coating in compliance with standard DIN 30677-2.

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Last Updated on: Wednesday, 03 June 2020