YUHUAN TINO IS COMPLEX OF PROPDUCER COMPANY, MAINLY PRODUCING KINDS OF HEATING ELEMENTS, OWNS VARIES OF VALVES, T61X series is for gas boiler, underfloor heating sytems, or any pressure vessel which requires pressure relieve, T61Mx is for electric pressure heater, 61Tx series is designed for pressure tank which needs valve works double safety , it protects vessel from high pressure over preset safety level by means of pressure and temperature., AUTOMATIC AIR VENT can be avalible ,either. more and more products pls visit WWW.TINONLINE.CC
and we also supply brass fittings as client request.