This Swagelok 1- nupro stainless "B" series bellows valve, 1/4" TSW, SS-4BW-TW-BH is a flow-control valve manufactured by Swagelok. It acts as the on/off or metering point in a piping or tubing run, controlling how fluid or air passes through the circuit. It is commonly in process plants, packaging equipment, and industrial fluid handling systems.
