No. 1 Maid-O-Mist® / Jacobus® Steam Vent

Straight Main Vent, fits 1/2 and 3/4inch pipe

Maid-O-Mist Jacobus steam vents provide a vent port size for every room, from the largest size for the coldest rooms to the smallest size for the "too hot" rooms. Easy to install on any radiator. Only these steam valves give you all these benefits:

• 16 different models
• Self-adjusting thermostatic control
• Float to prevent water escape
• Reduces radiator noise
• Cuts fuel consumption
• Assures even heat distribution
• Lowers operating costs

No. 1 is designed to vent the air from the main lines, as well as on longer runs (depending on the size of the building). Has 1/2inch and 3/4inch vertical connection. Use one or more at the end of the short main, or the main running to the warm side of the building. Also use two or three at the end of the long main, or the main running to the cold side of the building.

Vent size: 0.1850 inch

Steam Vent Sizing Guidelines

1 year warranty against manufacture defects in material and workmanship