纯肉无遮挡h肉视频在线观看-亚洲精品无码久久千人斩探花-久久夜色精品国产网站-少妇xxxxx性开放

Application
? Can be used to transfer clean water or other liquids similar to water in physical and chemical properties.
? Heating systems with constant or variable flows.
? Heating systems with variable flow-pipe temperature.
? Heating systems where night setback is desired.
? Heating systems where the differential pressure of the pump is too high during periods of reduced flow demand.
? Heating systems where requires a fully automatic adjustment of the performance to flow demands.
? Pressure boosting of water heaters.
? Circulation and pressure boosting of domestic water.

Application
? It is widely used for heating ventilating and air conditioning (HVAC) circulation, pressure boosting of hot water in family, homes powered by solar energy, industrial auxiliary equipment cold and hot water circulation and so forth
? Water circulation for the central and district heating system
? Domestic hot water circulation

Application
? Pressure boosting for domestic water supply
? Floor heating system
? Solar pumping system