https://www.coldroomsuppliers.com/product/double-stop-valve-dsv1
Double stop valve DSV1 - Professional Freezer Room,Cold Room Manufacturer
Mar 15, 2024 - DSV The Double Stop Valve is mainly used to connect two safety valves,and the rotating stem can be switched between the two safety valves
stop valvefreezer roomdoubleprofessionalcold