The 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.

Balanced Pressure Thermostatic Air Vent, Series/Model: Model VS-206, Nominal Size: 3/4 IN, Connection Type: NPT, Pressure Rating: 250 PSI, Material: Cast Iron Body, Stainless Steel Seat, Material Standard: ASTM A126 Class B, Temperature Rating: 450 DEG F, 3.9 IN Width, 5-1/2 IN Height

• 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
• Air vents shall be installed at the end of all steam mains and headers, and on large equipment steam spaces to facilitate start-up and heat transfer
• They shall be self-adjusting balanced pressure thermostatic type with precision welded multiple plate stainless steel bellows
• Head shall be hardened and both head and seat shall be stainless steel
• Body and bolted cap shall be cast iron and internals shall be renewable

Application: For installation at end of all steam mains and headers

• Specification Sheet https://macombstage.cimm2.com//ASSETS/DOCUMENTS/ITEMS/EN/SpiraxSarco_61685_Specification_Sheet.pdf