Functional description

The intended use of the Pressure regulator U47AC is pressure relief of a gas from an inlet pressure to a fixed or adjustable outlet pressure.

This pressure reduction is performed by the pressure regulator. It is equipped with one pressure gauge to display the inlet pressure and one for the outlet pressure. The outlet pressure is set to the desired value by turning the of the adjusting screw on the pressure regulator and must not exceed the 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.

The Pressure regulator U47AC are equipped with an over-pressure valve which does not represent a component with safety function in the context of Directive 2014/68/EU.