It looks like you are coming from United States, but the current site you have selected to visit is Vietnam. Do you want to change sites?

Yes, please. No. Keep me on the current site.

< View all Vents & Vacuum Breakers

Vents & Vacuum Breakers Convector Steam Vents

Overview Documentation & Tools
Overview

Overview

Product Features

Not Avaialble

Model 1B 
Part No. 401425 
Air Valve (non-vacuum)

  •  Float-type vent
  • Adjustable port for true proportional venting – 6 port settings from slow (1) to fast (6)
  • Telescopic siphon tube
  • 1⁄4″ NPT straight shank
  • Maximum operating pressure 11⁄2 psig (0.1 bar)*
  • Maximum pressure 10 psig (0.7 bar)

Model 41 Part No. 401455
Model 43 Part No. 401458
Model 45 Part No. 401461
Air Valve (non-vacuum)

  • Single non-adjustable port
  • For small steam systems
  • Telescopic siphon tube with angle cut assures drainage
  • 1⁄8″ NPT straight shank (41) – 1⁄4″ NPT straight shank (43) – 1⁄2″ NPT female and 3⁄4″ NPT male straight shank (45)
  • Maximum operating pressure 6 psig (0.4 bar)*
  • Maximum pressure 10 psig (0.7 bar)

Model 71A Part No. 401470
Model 71B Part No. 401464
Model 71C Part No. 401467
Air Valve (non-vacuum)

  • Float-type vent
  • Single non-adjustable port
  • Meets Federal Specification WW-V-151 for Type 1 Non-Adjustable Valves
  • Telescopic siphon tube with angle cut assures drainage
  • 1⁄8″ NPT straight shank (71A) – 1⁄4″ NPT straight shank (71B) – 1⁄2″ NPT female and 3⁄4″ NPT male straight shank (71C)
  • Maximum operating pressure 11 psig (0.8 bar)*
  • Maximum pressure 15 psig (1.0 bar)
Documentation & Tools