RA-NCX is a series of chrome plated radiator valves and lockshield valves, especially designed for use with design radiators. A new tailpiece with an O-ring seal ensures an aesthetically appealing connection to the radiator without the need for sealing tape or compound. RA-NCX valve bodies are equipped with a kV limiting device for pre-setting of max. water flow. RA-NCX are supplied with a protective cap and adjusting screw, which can be used for manual regulation during the construction phase. The protective cap must not be used as a manual shut off device. The pressure pin of the gland seal is made of chrominium steel and works in a lifetime lubricated O-ring. The complete gland seal can be replaced without draining down the system