The Tips for Choosing Heating and Air Conditioning Water System Valve

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1. We have any experience for choosing heating and air conditioning water system valve:
(1) Gate valve: the length of valve body is moderate, rotary adjustment rod, regulation function is good, and be widely used in the large diameter pipe.
(2) Globe valve: the valve body is long, rotary adjustment rod, regulation function is good, applicable to the occasion of the large venues and the small diameter (usually DN ¡Ü 150mm).
(3) Butterfly valve: the body valve is short, handle bar-type regulator, regulation performance is not very good, the price is much high, but the regulation is easy, applicable to the occasion of the small venues and large diameter (usually DN £¾ 150mm).
2. Depending on the circumstances, chillers, heat exchangers import and export, in charge of road regulation, can be selected gate valves, globe valves or butterfly valve.
3. On the sub-catchment devices, because regulation is the main function, can select globe valve or gate valve usually.
4. The import of pump installs a valve, the export install two valves. The one which is near the pump of export is check valve, the other valve can select gate valve, globe valve or butterfly valve.
5. Small diameter pipe on the end of device import and export of the heating and air conditioning can select globe valve or ball valves.
6. On each floor level pipe of multi-layer and high-rise building can be installation of balancing valve to balance the flow on each floor.
7. Tanks and the lowest of piping and equipment installation of sewage valve, should choose the valve which can turn-off closely, such as gate valve, the cut-off valve.
8. Steam - condensate piping system, at the entrance of the steam installed pressure reducing valve generally; in potential high-pressure fitted with safety valve; in emission fitted with drain valve.
9. Exhaust valve on the heating and air conditioning water systems used plug valves usually.


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