The Series WE31 incorporates a full port3-way SS ball valve for great flow rates withminimal pressure drop. The valve featuresa blowout-proof stem for added safety,reinforced PTFE seats and seals for longerlife, and a 316 SS (ASTM CF8M) ball forbetter performance. Actuators are directmounted creating a compact assembly fortight spaces. Limit switches are able to bemounted directly to the valves allowing forremote position indication.
The Series WE31 can be configured witheither an electric or pneumatic actuator.Electric actuators are available inweatherproof or explosion-proof, a varietyof supply voltages and two-position ormodulating control. Two-position actuatorsuse the supply voltage to drive the valveopen or closed, while the modulatingactuator accepts a 4 to 20 mA input forvalve positioning. Actuators featurethermal overload protection andpermanently lubricated gear train.
The pneumatic double acting actuator usesan air supply to drive the valve open andclosed. The actuator has two supply ports,with one driving the valve open and theother driving the valve closed. Springreturn pneumatic actuators use the airsupply to open the valve, and internallyloaded springs return the valve to theclosed position. Also available is the SNsolenoid valve to electrically switch the airsupply pressure between the air supplyports for opening and closing the valve.Actuators are constructed of anodized andepoxy coated aluminum for years ofcorrosion free service.
