HRAR Regulating Valves

HRAR regulating valves are designed to regulate the medium flow with a cone on the underside of the valve disc. The stem sealing is provided by a threaded bush.

AWP regulating valves are designed for installation in industrial heating and refrigeration systems. Actuation is by hand wheel or ratched. These valves are both regulating and shut-off valves. Rotating the stem clockwise will lower the valve disc onto the valve seat and therefore close the pipe, counter-clockwise rotation will lift the valve disc and open the pipe. The regulating function is enabled by a cone on the underside of the valve disc. The maximum diameter of the cone corresponds to the valve’s nominal diameter. The stem sealing is provided by a threaded bush with spring-elastic PTFE ring. The valves are also equipped with a back seal so that when the valve is fully opened it is possible to replace the threaded bush and the seal.

Technical Features

  • Available in steel or stainless steel
  • Selection of body material as per German DIN EN12284, AD2000 Series W
  • Working mediums: refrigerants as per EN 378 p. 1, e. g. NH3, R22, R134a and blends with refrigerator oil; neutral, gaseous and liquid mediums; glycol-based cold brine
  • Installation is possible in any position but the flow direction must be observed

HRAR Regulating Valves

straightway or angle type


steel or stainless steel

Nominal Size

DN 6-250

Nominal Pressure Level

PS 25, PS 40, PS 63, PS 160

Temperature Range for Standard Valves

-60 °C to +150 °C

Temperature Range for HT Valve Series

-10 °C to +200 °


butt welding and flanged ends as per DIN and ANSI, brazed ends, threaded ends
Additional Information
available with cover extension

Get in touch

Armaturenstr. 2
17291 Prenzlau

Phone: +49 3984 8559-0
Fax: +49 3984 8559-18