Single-stage pressure regulators reduce the cylinder pressure to the delivery or outlet pressure in one step. Two-stage pressure regulators reduce the cylinder pressure to a working level in two steps.

The best recommended action is to determine how you intend to use the pressure regulator. Generally a single-stage regulator is good for short duration applications; a two-stage regulator is good for long duration applications, such as gas chromatography.

ONE-STAGE REGULATOR
SINGLE-STAGE REGULATOR

TWO-STAGE REGULATOR
TWO-STAGE REGULATOR

Credits : scottecatalog

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