Hoffman Steam Specialties
Hoffman “Watchman” Condensate Units
Hoffman’s boiler feed and condensate units are ideal for retrofit and can be used in a variety of applications, such as recirculating heated or cooled water in various systems, and collecting condensate from air conditioners.
Hoffman Radiator Supply Valves—185 Series
The supply valve for a one- or two-pipe system is installed at the inlet connection. Brass construction. On/Off.
| 185 SERIES ORDERING INFORMATION |
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Available in angle or straightway patterns. |
Hoffman Venting Valves for Steam Applications
Hoffman No. 1-A Air Valve
A float type vent with adjustable port for true proportional venting. Port settings from slow (#1) to fast (#6) venting. 1/8'' NPT angle connection. Operating pressure up to 1.5 psi. Maximum pressure of 10 psi.
Hoffman No. 40 Air Valve
A float type vent with a single non-adjustable port. For use on ordinary one-pipe system not requiring proportional venting. 1/8''NPT angle connection. Operating pressure up to 6 psi. Maximum pressure of 10 psi.
Hoffman 
No. 75, 75-H Air Valves
Float type vents, each with single non-adjustable port for relieving air from the mains of medium nd large systems. 1/2'' NPT female and 3/4'' NPT male straight shank. Operating pressure up to 3 psi (75) and up to 10 psi (75H). Maximum pressure of 15 psi.
Hoffman No. 1B Connector
Steam Vent A float type vent with anadjustable port for trueproportional venting—6 portsettings from slow to fast. Telescopic siphon tube. 1/4'' NPTstraight shank. Maximum operating pressure 1.5 psig.
Hoffman No. 62 Vacuum Breaker
Designed for use on closed vessels and piping systems to control induced vacuum within safe limits. Adjustable from 1/4'' to 20'' (mercury) vacuum. 3/4'' NPT straight shank. Maximum operating pressure of 150 psi.
Hoffman No. 500 Air Valve
A disc type vent with built-in check valve, designed for venting systems either manually or automatically. Discs can be replaced without draining the system. 1/8''NPT straight shank. Maximum water pressure of 50 psi.
Hoffman No. 79 Main Vent Valve
Designed for use on hot or cold water mains and process applications. Tapped at top for 1/8'' NPT. Safety drain connection for discharging moisture entrained in the vented air. Built-in check valve. 1/2'' NPT female and 3/4'' NPT male straight shank. Maximum operating pressure 75 psi. Will withstand hydrostatic pressures of 200 psi.
