What is the difference between a single-stage and a dual-stage regulator?

Single-stage regulators lower pressure in just one step to effect pressure within a defined range. Regulators designed in this way will show a slight variation in delivery pressure as the cylinder pressure falls during use. For this reason, single-stage regulators are most appropriate for uses where a constant outlet pressure is not crucial, where an operator can supervise and readjust pressure, or where inlet pressure is constant.

Dual-stage regulators provide the same function as single-stage regulators. But, in this case, the delivery pressure holds steady as cylinder pressure declines. Increased accuracy in pressure control is kept because the pressure reduction is performed in two steps. Dual-stage regulators are recommended for applications calling for a constant outlet pressure over the life of a gas cylinder.

Access our catalog for more information on gas regulators or reach us at 503-235-0168 or paulb@industrialsource.com.