1" Glass-Reinforced Nylon Air-Release Vacuum Breaker Valve

Item 21519

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This air-release vacuum break valve allows air to evacuate while filling a pipeline or tank. It also permits air intake while draining to prevent vacuum formation. Install one wherever air is most likely to collect or at the highest elevation points in a system. The elbow at the top has female NPT threads, allowing for connection to a hose or pipe to contain any minor spillage. Meanwhile, the valve checks and further protects against the admittance of dirt or debris into the system.

  • Nylon body, polypropylene float & elbow, EPDM seal & o-ring
  • Install in the VERTICAL position
  • Valve position must be within 5° of top of pipe to allow for proper alignment & movement of float
  • Operating temperature: 33°F to 140°F
  • Max. working pressure: 150 psi
  • Min. working pressure: 1.5 psi
  • Size Selection: Use the 1" valve with 1/2" to 2" pipe. Use the 2" valve with 2-1/2" to 4" pipe

Item Information

Item Number: 21519
Catalog Page Number: P-491
Manufacturer: Colonial Engineering
Manufacturer Part #: V10527N
Country of Origin: China

Tech Specs

Connection: FNPT x MNPT
Size: 1"
Seal: EPDM
Material: Nylon
Weight: 1.35 lbs

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