The KFPV050 Series proportional control valves are designed for stepless variable control of gases and liquids. The valve is a direct acting two-port plunger type with a body available in brass or stainless steel. The solenoid can be oriented 360° and its elbow electrical terminal can be positioned every 90° top to bottom and left to right for maximum wiring versatility. The valves are for use with the KFPC1 Controller which delivers a repeatability and response accuracy of 2% F.S. or less, and a hysteresis of 5% F.S. or less. On-board support circuits make initial setting possible without any external input.