11 Apparatus for lighting, heating, refrigerating, steam generating, cooking, ventilating, water supply and distribution, air-conditioning and sanitary purposes in buildings, namely, temperature and pressure measuring instruments in the nature of automatic temperature regulators for HVAC apparatus and systems, valves, actuators, control valves, balancing valves, and pressure regulators as parts of heating and cooling installations all for use in HVAC systems; control valves, namely, on/off control valves, modulating control valves, thermostatic control valves, thermostatic control valve bodies, 6 way control valves, 4 way control valves, 3 way control valves, 2 way control valves, combined balancing valves, combined differential pressure control valves, balancing and control valves, pressure independent balancing and control valves, On/Off temperature balanced control valves, butterfly type control valves, isolation valves; parts for heating, steam generating, ventilating, water supply and sanitary installations, namely, one-way and multiway valves, tension regulator valves, pressure regulator valves, volume regulator valves, thermostat-controlled metal valves, thermostat superstructures for valves; locking and multipath taps, water pipe apparatus and installations, apparatus and installations for degassing water