Jacobus Maid-O-Mist J6 #6, 1/8" Angle Air Valve
A Jacobus Maid-O-Mist steam radiator air vent used to release trapped air from steam radiators so they heat properly and more evenly across the system when the correct vent size is required.
Key Features
- Steam radiator vent, Model #6, angle pattern with 1/8" male connection
- Non-adjustable vent (fixed venting rate)
- Vent size: 0.0935"
- Temperature range listed: 140°F - 240°F (240°F max)
- Guidance for Model 6: venting capacity equal to 8 ordinary air valves, recommended for radiators farther from the boiler and in cold rooms
- Material listed: Steel
Compatibility & Applications
- Intended for steam radiator venting applications (radiator air removal/balancing).
- Model 6 is used for radiators farther from the boiler and cold rooms as part of balancing vent sizes across a system.
Installation & Operation Notes
- Installation should be performed by a qualified steam/heating technician.
- Proper balancing depends on selecting the correct vent size for each radiator location; follow the vent sizing recommendations when choosing where to install Model #6 vents.
Maintenance & Troubleshooting
- This part is commonly replaced or upgraded when addressing uneven heat, slow-to-heat radiators, or overall balancing issues in steam systems.
- If a radiator remains cold/slow after replacement, troubleshoot to confirm vent sizing is appropriate and that the radiator and piping can vent air properly .
- If a vent leaks or fails to vent reliably, replacement is typically the corrective action.