AK Butterfly Valves

To open and close the pipe butterfly valves use a disc rotated horizontally through 90° in relation to the flow direction.

AWP butterfly valves are designed for installation in industrial heating and refrigeration systems. The closing device is a disc that opens and closes the pipe by horizontal rotation in relation to the flow direction. The 90° rotation is exerted via the shaft and is either by a hand-operated lever or by electric or pneumatic actuators.

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
  • Actuation either by hand-operated lever or by electric or pneumatic actuators

AK Butterfly Valves

straightway type


steel or stainless steel

Nominal Size

DN 40-500

Nominal Pressure Level

PS 25

Temperature Range for Standard Valves

-50 °C to +150 °C


flanged ends as per DIN and ANSI
hand-operated lever electric or pneumatic actuator

Get in touch

Armaturenstr. 2
17291 Prenzlau

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