ISO 9001 is the internationally recognized standard for Quality Management Systems (QMS). It specifies the...
HVAC systems are used for heating, cooling, ventilation and indoor condition control in buildings, technical facilities, hotels, hospitals, industrial areas and marine applications. Their operation is based on hot water, chilled water, glycol, steam, condensate, condenser water and auxiliary service circuits. Valves in HVAC systems are selected according to flow rate, temperature, pressure, differential pressure, fluid type, circuit function and control system requirements. Correct selection...