Spirax-Sarco 62048 Spirax-Sarco 3/4″ 6A Air Vent With Float & Thermostatic Bellows, 15 Psi Max

for steam, water and air. Spirax-Sarco 6A air vent has both a float and a thermostatic bellows for use in low pressure systems where air, condensate and steam may be present, used on one-pipe steam heating systems. The 6A will discharge air, while preventing the escape of steam. An outlet check valve prevents the re-entry of air.