The Model 989 is a globe-style, pneumatic control valve designed primarily for general and chemical service. The valve's body/trim materials are available in WCB/316L SST or CF3M/316L SST constructions.
Standard trim is metal seated design giving Class IV shutoff. Optional composition seat design gives Class VI shutoff. Avail able in body sizes 1" thru 2" (DN25–DN50) with fl anged end connections.
Cashco manufactures a proprietary line of self-contained regulators and control valves. The regulators are self-sufficient valves that control the flow based on line pressure at the regulator. By contrast, control valves control flow based on an external signal coming from a controller. Cashco valves control liquids and gases in industrial applications.