Hoffman 401429 74, 1/2 x 3/4 Straight Steam Unit Heater Air Valve

Product Description

The Hoffman 401429 is a steam unit heater air valve designed for efficient steam systems. This product features a float-type thermostatic vent that allows for controlled air release. It has a single non-adjustable port and is constructed with a combination of one-half inch NPT female and three-quarter inch NPT male connections, providing flexibility for installation.

• Float-type thermostatic vent
• 1/2 inch NPT female and 3/4 inch NPT male connections
• Maximum operating pressure of thirty-five psig

Product Highlights

This valve is suitable for unit heater applications and should be installed six to ten inches above horizontal returns and eighteen inches above boiler water lines.

Product Information

Standard Information

• Brand: Hoffman
• MPN: 401429

Technical Specifications

• Type: Non-Vacuum, Float-type Vent
• Size: 1/2 x 3/4 inches
• Material: Steel
• Application: Unit Heater Vent
• System Type: Steam
• Thread Size: 1/2 and 3/4 inches
• Max Pressure: 35 psig
• Temperature Range: 140°F - 240°F