Description
Hoffman Specialty No. 75 Steam Vent — Model 401434
The Xylem-Hoffman Specialty 401434 is a No. 75 automatic air vent engineered for one-pipe steam heating systems. Designed to rapidly discharge air from radiators and steam mains at system startup, this vent allows steam to fill the system efficiently while preventing air binding — a leading cause of uneven heat distribution and energy waste. With a 3 PSI pressure rating, it is well-suited for low-pressure residential and light commercial steam heating applications.
Key Features
- Model No. 75 automatic steam air vent
- 1/2″ female pipe thread (FPT) inlet connection
- 3/4″ male pipe thread (MPT) outlet connection
- Rated for 3 PSI steam systems
- Designed for one-pipe steam heating systems
- Automatically opens to release air and closes when steam arrives
- Helps eliminate air binding for even heat distribution
- Durable construction for long service life in steam environments
Application
The Hoffman Specialty 401434 No. 75 steam vent is ideal for installation on radiators, convectors, and steam mains in residential and light commercial one-pipe steam heating systems. It is a trusted solution for HVAC professionals seeking reliable air venting performance in low-pressure steam applications.
Specifications
- SKU: 401434
- Model: No. 75
- Inlet Connection: 1/2″ Female Pipe Thread (FPT)
- Outlet Connection: 3/4″ Male Pipe Thread (MPT)
- Pressure Rating: 3 PSI
- Application: One-pipe steam heating systems
- Brand: Xylem-Hoffman Specialty
