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1003586
AIR VALVE - #75 STRAIGHT HOFFMAN
- Part #: 401434
- Type: Steam main air vent
- Application: End of one-pipe steam mains and return piping
- Connection: 1/2 in. x 3/4 in. straight
- Adjustable: No
- Drop-Away Pressure: approx. 3 psig
- Max Pressure: 15 psig
- Type Detail: Low-pressure main vent
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Product Details
This straight steam main air vent installs at the end of a steam main to bleed air from the system on startup, so steam reaches the radiators faster and heats the building more evenly. It closes as pressure builds, keeping steam in the mains.
Key Features:
Key Features:
- Main-Vent Capacity -- Moves far more air than a radiator vent to clear the mains quickly on startup.
- Low-Pressure Design -- Sized for low-pressure one-pipe steam mains.
- 1/2 in. x 3/4 in. Connection -- Straight shank installs at the end of the main or on return piping.
- Automatic Close -- Closes as system pressure rises to hold steam in the mains.
- Pressure Rating -- Low drop-away pressure (about 3 psig); maximum pressure 15 psig.
- Building maintenance -- Replacing end-of-main air vents to speed air removal on one-pipe steam systems
- Steam system balancing -- High-capacity main venting so steam reaches radiators faster and more evenly
- Property heating upkeep -- Seasonal main-vent service in apartment buildings and older steam-heated properties
Additional Information
| Part Number: | 1003586 |
|---|---|
| MFG Part Number: | |
| Weight: | 0.00 LB |
| Height: | 0.00 |
| Depth: | 0.00 |
| Width: | 0.00 |
| Size: | |
| Product PDF: | |
| Extra Details: |
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