Hoffman Water Vents

Hoffman Water Vents

Information:

MODEL 77 PART NO. 401497
WATER  VENT VALVE

  • For efficient releasing of air in hydronic heating systems, such as baseboard radiators, convector radiators and small heating units
  • 1⁄8″ NPT straight shank
  • Maximum operating pressure 50 psig (3.5 bar)*
  • Maximum temperature 240°F (116°C)

MODEL 78 PART NO. 401485
WATER MAIN VENT VALVE

  • For use on high pressure hot or cold water or glycol mains and process applications with specific gravity greater than 0.7
  • Cast brass body
  •  Tapped at top for 1⁄8″ NPT safety drain connection for discharging moisture
  • Body unscrews for easy cleaning
  • Built-in Check Valve
  • 3⁄4″ NPT straight shank
  • Maximum operating pressure 150 psig (10.3 bar)*
  • Maximum hydrostatic pressure 450 psig (31.1 bar)
  • Maximum temperature 250˚F (121˚C)

MODEL 79 PART NO. 401488
WATER MAIN VENT VALVE

  • For use on hot or cold or glycol water mains and process applications with specific gravity greater than 0.7
  • Tapped at top for 1⁄8″ NPT safety drain connection for discharging moisture
  • Removable top
  • Built-in Check Valve
  • 1/2″ NPT female and 3⁄4″ NPT male straight shank
  • Maximum operating pressure 75 psig (5.2 bar)*
  • Maximum hydrostatic pressure 200 psig (13.8 bar)
  • Maximum temperature 250˚F (121˚C)

*Drop away pressure (maximum pressure against which the vent can open).

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  • 401497 Hoffman Model 77 Water Vent Valve
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    401497 Hoffman Model 77 Water Vent Valve

    Hoffman

    $48.95
    401497 Hoffman Model 77 Water Vent Valve. Information: Hoffman Water Vents Brochure Hoffman Water Vents Submittal Sheet Hoffman Specialty General Catalog Hoffman Specialty Service Parts Catalog Specifications: For efficient releasing of air...
    $48.95
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    $48.95
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  • 401488 Hoffman Model 79 Water Main Vent Valve
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    401488 Hoffman Model 79 Water Main Vent Valve

    Hoffman

    $108.95
    401488 Hoffman Model 79 Water Main Vent Valve. Information: Hoffman Water Vents Brochure Hoffman Water Vents Submittal Sheet Hoffman Specialty General Catalog Hoffman Specialty Service Parts Catalog Specifications: For use on hot or cold or...
    $108.95
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  • 401485 Hoffman Model 78 Water Main Vent Valve
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    401485 Hoffman Model 78 Water Main Vent Valve

    Hoffman

    $168.95
    401485 Hoffman Model 78 Water Main Vent Valve. Information: Hoffman Water Vents Brochure Hoffman Water Vents Submittal Sheet Hoffman Specialty General Catalog Hoffman Specialty Service Parts Catalog Specifications: For use on high pressure...
    $168.95
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    $168.95
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