A single-stage is a good performer for short duration gas usage. A two-stage regulator performs best when it is attached to the cylinder and adjusted to the desired reduced pressure, and then remains in service until the cylinder is ready for changeout. Consider this criteria when planning your next pressure reduction requirements. Use a regulator for all pressure reduction requirements. Use a valve for flow control.
Materials used in the regulator construction are to be compatible with the intended gas service.
Determine the delivery pressure requirements. Determine the accessories to be included with your regulator. Determine how you intend to use the pressure regulator. The safest means to reduce cylinder pressure is through a pressure reduction regulator. Scott offers over 34 regulator series with more than 120 different pressure ranges.