Alfa Laval Unique SSV Reverse Acting single seat valve, change-over, ISO 76.1 mm (3 inch), valve body combination 211 — three bodies, four ports, welding ends. Rated 10 bar, −10 °C to +140 °C on EPDM.
For hygienic lines where the flow direction rules out a standard Unique SSV, removing the risk of pressure shock. Air-operated at 5 to 7 bar, normally closed (NC), spring return, maintainable actuator.



