Spirax-Sarco KX51B is a 2-inch self-acting two-port temperature control valve designed to provide automatic regulation in steam systems when used with Spirax Sarco SA control systems. It is listed as a 2" NPT temperature control valve (KX51B), enabling threaded installations and integration into standard Spirax Sarco control packages. This valve is part of Spirax Sarco’s family of self-acting controls for steam systems, delivering automatic temperature control by modulating flow in response to sensed temperature without external actuators.
