Alfa Laval Unique SSV Reverse Acting single seat valve, change-over, ISO 63.5 mm (2 1/2 inch), valve body combination 111 — three bodies, three 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.




