The K4’s all stainless steel valve and actuator trim promises years of trouble free service providing Class IV seat leakage with shutoffs to 200psi. Kombat K4 series control valves feature an epoxy coated pneumatic actuator that accepts a 3-15 or 0-30 psi input and are ideal for controlling boiler feed water, larger heat exchangers and a variety of process flows. The K4 series flanged ANSI 125 cast iron control valves are available in sizes 2 ½” to 4”.