78, 3/4" Straight Water Main Air Valve Zoom

78, 3/4" Straight Water Main Air Valve


Brand: Hoffman

Qty Price
/ each
$344.85 / box (3 units x $114.95)
In Stock! Ships in 24-48 Hours
(591 Available)



Application: Main Vent
Size: 3/4"
Type: Built-In Check
System Type: Hydronic (Water)
Max Pressure: 450 psig (Hydrostatic)
Max Operating Pressure: 150 psig
Mount: Straight
Adjustability: Non-Adjustable
Material: Cast Brass
Body Pattern: Straight
Thread Type: Male
Temperature Range (F): 140°-250°F
Min Temp (F): 140°F
Thread Size: 3/4"

Description for Hoffman 401485

  • 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)(Drop away pressure - maximum pressure against which the vent can open).
  • Maximum hydrostatic pressure 450 psig (31.1 bar)
  • Maximum temperature 250°F (121°C)

78, 3/4" Straight Water Main Air Valve

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