1" PVC 591 Ventilating & Bleed Valve with EPDM Seals

Item #: 20821
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These valves are primarily used where containers and pipes have to be aerated and/or vented. The float in the type 591 opens the valve if the level of the liquid falls. If the level of the liquid rises, the float is raised and pressed against a seal. The valve is then closed. Ventilating and bleed valves are mainly used for de-aerating of air, while filling piping systems and tanks, avoiding vacuum and discharging air pockets.

  • PVC
  • EPDM seals
  • Valves supplied with threaded & socket end connectors
  • Installed vertically with the arrow pointing "up"
  • Valve can be positioned at absolute & temporary high points, after pumps or at turning points

Item Information

Item Number:20821
Catalog Page Number:P-423
Manufacturer:Georg Fischer
Manufacturer Part #:161591104

Tech Specs

Weight: 1 lbs

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