The 300 series direct-acting solenoid valves offer a wide range of options for broad design flexibility and maximum performance. The 300 series are multipurpose 3-way valves with direct-acting solenoids. The 310 is 19 mm wide with a 0.14 Cv. The 315 series is also 19 mm wide with a 0.42 Cv, giving it the highest flow rate of any compact valve. The 318 series is 22 mm wide with a 0.8 Cv, and the 320 Series measures 25 mm wide with a 1.0 Cv.