Val-Matic Well Service Air Valve

Air release and vacuum valve for vertical pumps to vent air and prevent surges

There are many different variations available to fit your specific needs. Please Contact Us for a free quote or consultation.

Val-Matic Well service Air Valve



  • Unconditionally guaranteed 316 stainless steel floats
  • Inlets and outlets are equal to full nominal pipe area

Dual Port Throttling Device

  • Adjustable discharge outlet provides regulated air exhaust
  • Allows air to enter the system on pump shut down through an unrestricted independent vacuum port

Regulated-Exhaust Device

  • Restrictor disc provides regulated exhaust to limit pump column surges
  • Ability to adjust air exhaust for greater surge suppression
  • Provides full vacuum flow port


  • Available in sizes 1/2"-3" equipped with Dual Port Throttling Device
  • 4" and larger equipped with Regulated-Exhaust Device mounted on the inlet
  • NSF/ANSI 61 Certified for Drinking Water
  • Fully complies with AWWA C512
  • UL Listed for fire pump service - 2" and 3"
  • Manufactured under a certified ISO 9001 quality system
  • Regulates the exhaust of air on pump start-up
  • Admits air to protect pump and mechanical seals
  • Protects against air-related surges on pump start-up
  • Automated Sizing Program



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