Home > Products > Check Valves > RVAK Stop Check Valves
AWP check valves open autonomously by the pressure which is exerted by the working medium upon the valve disc. They start to open at a differential pressure of 0.01 to 0.05 bar and are fully open between 0.1 and 0.2 bar. As soon as the flow is interrupted or the flow direction is reversed, the valve closes automatically. Additionally, RVAK stop check valves may also be closed manually with a handwheel or a ratchet attached to the lifting stem. Rotating the stem clockwise will keep the valve disc down on the valve seat and therefore keeps the valve closed, counter-clockwise rotation will enable the valve disc to be opened by the pressure of the medium. The cone on the underside of the valve disc allows the medium flow to be regulated. The maximum diameter of the cone corresponds to the valve’s nominal diameter. The built-in damping device makes this type of valve especially suitable in cases where the power requirement / flow rate fluctuates. AWP stop check valves are designed for installation in the refrigerant circulation of industrial refrigeration systems. They are installed on either the pressure or suction side of compressors or in pipes in which only one direction of flow is intended. The spindle sealing is provided by a threaded bush with spring-elastic PTFE ring.
Material
steel or stainless steel
Nominal Size
Nominal Pressure Level
Temperature Range
Connections
GEA AWP GmbH
Armaturenstr. 2
17291 Prenzlau
Germany
Phone: +49 3984 8559-0
Fax: +49 3984 8559-18
As part of the global operating GEA group, GEA AWP is the specialist for the development and manufacture of valves and components used in industrial cooling and refrigeration plants and machinery. The company is based in the town of Prenzlau, located near Berlin and employs about 100 employees.
GEA AWP GmbH
Armaturenstr. 2
17291 Prenzlau
Germany