The Viking PSDB1004NT220 is a series of direct acting electronically operated plunger valves designed for industrial applications. It is designed for medium pressure ratings from 2,000 psig to 11,200 psig and a temperature rating of -20°F to 400°F. The valve is suitable for a wide range of media including water, steam, oil and gas, and consists of a cast body, stem and stem nut. The plunger is made of stainless steel and is actuated by a four-wire electronic solenoid that includes a throttle input. The valve can be installed with either NPT or BSP threaded connections.