Wandfluh has extended the manually actuated throttle valve with execution for use in very corrosive environments. The valve is made of stainless materials and coated with high-quality surface protection. It can control volume flows up to 25 l/min and the maximum operating pressure is 350 bar. The three different flow range allows the resolution of the setting to be adapted to the needs of the system. The adjustment of the desired pressure can take place by means of a tool or by various control knobs. With the option “cover”, the adjustment can be protected against unauthorized access. The direct operated valve in nominal size M18 according to ISO 7789 is available under the designation DN_PM18_K9. It is mainly used in areas with continually changing weather conditions or in the vicinity of the sea.
Throttle valves are used wherever volume flows have to be regulated continuously in both flow directions without taking pressure fluctuations into account, e.g. by specifying the traverse speed of a cylinder.