Spirax-Sarco 3/4" NPT cast iron balanced pressure thermostatic air vent for steam systems, with a maximum pressure of 250 psi. VS204 and VS206 air vents are designed for use on steam systems to remove air and other non-condensable gases, which may impair heat transfer during start-up and normal operation.
For nearly a century, Spirax-Sarco has specialized in steam and pump technology and providing engineered solutions for the design, maintenance, and operation of industrial and commercial steam systems. Among the solutions Spirax-Sarco offers are steam traps, pressure and temperature control valves, condensate recovery pumps, strainers, separators, humidifiers, flow meters, boiler controls, prefabricated trap manifolds, and heat transfer and recovery packages. Spirax-Sarco products are used in a variety of process industries, including beverages and brewing, pharmaceuticals, oil and petrochemicals, chemicals, mining and metals processing, plastics, and textiles.