Functional description

The intended use of the Pressure regulator U13AC is pressure relief of a gas from an inlet pressure to a fixed or adjustable outlet pressure.

Pressure reduction is performed by the pressure regulator. It is equipped with one pressure gauge to display the inlet pressure and the outlet pressure. The outlet pressure is set to the desired value by turning the of the adjusting screw on the pressure regulator and is not permitted to exceed a defined maximum value given on the label.

In the case of the single-stage pressure regulation present here, the set outlet pressure does not remain completely constant and instead rises slightly as the inlet pressure decreases (e.g. caused by a draining cylinder).

Especially in the case of acetylene, this increase in the outlet pressure is taken into account by the manufacturer in the limitation setting of the maximum possible pressure setting value, so that the outlet pressure cannot exceed the maximum permissible 1.5 bar for the low-pressure range in the event of no actual acetylene inlet pressure occurring.

With pressure regulator U13AC-2.5, the outlet pressure is permitted to rise up to 2.5 bar. This pressure regulator is used as the first stage so that the outlet pressure after the second stage can always be constant at 1.5 bar. The range after this 1st stage must be correspondingly designed for 2.5 bar up to the 2nd stage.

The Pressure regulator U13AC are equipped with an over-pressure valve which does not represent a component with safety function in the context of Directive 2014/68/EU.

The Pressure regulator U13AC-2.5 are equipped with a safety valve which represents a component with safety function in the context of Directive 2014/68/EU.