The Smith Meter® Model 215 Digital Control Valve is a high-performance, wafer-sphere valve with a solenoid- controlled pneumatic/hydraulic actuator. When used in conjunction with one of the Smith Meter Electronic Valve Controllers (e.g., AccuLoad, or microLoad) Model 215 Valves provide precise, trouble-free, low pressure drop, preset loading, and/or flow control of virtually any flowing liquid. The Model 215 is particularly well suited for applications on heavy fuel oils or lube oils where viscosity limits the use of hydraulic valves.