The HD 550 pressure regulator is a singlestage high-pressure reducer made of stainless steel 1. 4404 or brass, which is particularly suitable for the pressure reduction of high-purity gases, gas mixtures and liquids.
It reduces the pressure of compressed gases or liquids to a maximum back pressure of 550bar.
The pressure regulator is designed as a piston pressure regulator and is especially suitable for the high pressure range.

In the version with a seat diameter of 6,35mm, a pressure-relieved valve cone is largely independent of pressure fluctuations.
The piston diameters are different so that good controllability is guaranteed even at low back pressures.
The pressure regulator is available with return control and the control spindle is equipped with an axial bearing. As a result, different
working pressures can be quickly and easily adjusted even at high pressures with little effort.
At the input and output this pressure reducer is equipped with internal thread NPT 3/8“ or G 3/8“. The pressure regulator can be optionally equipped with pre- and back pressure gauges.