Convector Steam Vents
Model 1B Part No. 401425 - Air Valve (non-vacuum)
• Float-type vent
• Adjustable port for true proportional venting – 6 port settings from slow (1) to fast (6)
• Telescopic siphon tube
• 1⁄4" NPT straight shank
• Maximum operating pressure 11⁄2 psig (0.1 bar)*
• Maximum pressure 10 psig (0.7 bar)
*Drop away pressure (maximum pressure against which the vent can open).
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