Steam Air Vent, Automatic, (M)NPT ConnectionSteam Air Vent, Automatic, (M)NPT Connection (In.) 1/8, Connection 1/8 In. (M)NPT Angled, Max. Temp. (F) 240, Max. Pressure (PSI) 6 psig (Drop Away Pressure), Material Plated Brass, Construction Horizontal Pipe Fittings for Use on Cast Iron Radiators, Nonadjustable (In.) 1/8, Connection 1/8 In. (M)NPT Angled, Max. Temp. (F) 240, Max. Pressure (PSI) 10 (6 psig Drop Away Pressure), Material Plated Brass
Hoffman Specialty Steam- Nonadjustable, except 4NU93 has 6 port settings to allow proportional air venting from radiators throughout large heating systems. 4NU93 and 4NU94 have horizontal pipe fittings for use on cast-iron radiators. 4NU95 and 4NU96 have vertical pipe fittings for use on convectors.
- Water and Steam System Air Vents