Water Supply

S-050-C S-052 | Automatic Air Release Valve "Segev"


  • Product Catalog:
  • Product Drawings:
  • Install & Maintenance:
250 PSI 360 PSI - 1/2", 3/4", 1"


The S-050-C S-052 series Automatic Air Release Valve releases accumulated air from the system while it is under pressure. The presence of air in a water system can reduce the effective cross sectional flow area resulting in increased pressure loss and deceased flow. Unwanted air may also cause water hammer and metering inaccuracies, while hastening corrosion. In spite of its compact and light weight structure, the S-050-C S-052  series Automatic Air Release Valve has a 0.0186 Inch2/ 0.014  Inch2 orifice that enables it to release air at high flow rates and is not exposed to obstruction by debris.

Product Features

  • Single chamber air valve, directly operated by the flow medium.
  • Releases entrapped air from pressurized systems.
  • The valve's rolling seal mechanism design enables a one size orifice for a wide pressure range (3 – 360 psi).
  • Available in sizes: 1/2", 3/4", 1" - NPT – male threaded connections.

Materials and Corrosion Protection

  • Body made of high strength composite material; all operating parts are made corrosion- resistant materials.
  • Float made of foamed polypropylene.
  • S-050-C/S-052 models have a protective shell made of Cast Iron ASTM A-48 CL35B/Ductile Iron ASTM A-536-60-40-18.
  • FBE coating according to the international standard DIN 30677-2.

Application Range

  • Working pressure range:
    • S-050-C 3 – 250 psi
    • S-052 3 – 360 psi
  • Maximum operating temperature: 140°F.
  • Maximum intermittent temperature: 194° F.
  • Installed on most types of pumps, after filters and pressure reducers


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Last Updated on: Tuesday, 13 August 2013