Spirax Sarco 81621 Balanced Pressure Thermostatic Air Vent Gasket for VS204 Thermostatic Steam Trap

Spirax Sarco part 81621: Balanced Pressure Thermostatic Air Vent Gasket for the VS204 thermostatic steam trap.

Spirax Sarco VS204 and VS206 balanced pressure thermostatic air vents remove air and other non-condensable gases from steam systems during start-up and normal operation.