1/8" Soft Start Valve 24v DC 200 Series - KC200-06 Start Valves are increasingly being used where safety is key in the start up of systems & machines in helping protect the operators and the equipment. The valves allow the pressure to gradually increase to the full flow required on start up of the system. OSHA approved These units can be used in conjunction with KELM™ Air Preparation with the addition of brackets style 'U' or 'L', or as a stand alone in-line unit.