What's the difference between a cold water pump and a hot water pump?
Cold water pump is generally packing seal, hot water pump is generally mechanical seal. If the cold water pump is used to transport hot water, the common trouble is that the shaft seal is easy to leak and the water pump is easy to damage. Generally in the design of building water supply and drainage, cold water pump and hot water pump can be selected according to the cold and hot water. Water supply and drainage design manual (common equipment) and pump manufacturers Water Pump samples can be found.
Water seal and sealing quality is different?
Cold water pump refers to the pump can be transported below 80 degrees C temperature liquid, known as cold water pump, between 80 degrees C to 120 degrees C, the temperature of the pump is called hot water pump.1, the characteristics of hot water pumpHot water pumps IRG hot water pump which is based on ISG and ISW centrifugal pump series on optimization designed, especially IRG type hot water circulating pump consumption, because the pump adopts a vertical motor is installed in the upper part, and a short frame between the pump and motor, not because of a mechanical seal Water Leakage phenomenon the motor inside the water inlet of the motor burn, but also in the IRG based on the design of the hot water pump mechanical seal in high temperature hot water pump maximum temperature by external tap water cooling device can reach 240 DEG C.2, the characteristics of cold water pumpSeal packing seal or mechanical seal rubber material Ding Qing cold water pump commonly used, the most common packing pump is IS single stage single suction centrifugal pump of the pump is also one of the earliest water pump products, because the filler itself requires liquid cooling and lubricating the pump temperature as the only 80 degrees, and packing seal cold water pump and dripping phenomenon has pollution to the pump body pump base and the surrounding environment, this kind of product has been ISG and ISW centrifugal pump series products replaced, ISG and ISW series of cold water with mechanical seal it has no water leakage phenomenon, and is directly connected with the impeller structure used in the the shaft of the motor, the noise and vibration above is obviously better than that of the old type of IS series cold water pump this kind of pump products commonly used in air conditioning water cycle with so called air conditioning chilled water circulating pump.
