The difference between cold water pump and hot water pump

A commonly used cold water pump refers to a pump that can deliver a liquid at a temperature below 80 ° C, called a cold water pump, and a pump with a temperature between 80 ° c and 120 ° c is called a hot water pump.

The difference between cold water pump and hot water pump:

1. Characteristics of cold water pump: The common seal of cold water pump is packing seal or mechanical seal of nitrile rubber. The most common pump with packing seal is IS single-stage single-suction centrifugal pump. This pump is also the earliest cold water pump product, due to The filler itself needs liquid cooling and lubrication. Therefore, the pump has a temperature resistance of only about 80 degrees, and the cold water pump with packing seal has dripping water, which has certain pollution to the pump base and the surrounding environment of the pump. Such products have been gradually adopted by ISG. In addition to the ISW centrifugal pump series, the ISG and ISW cold water series use mechanical seals, which will not leak water, and they all use the direct-connected structure impeller on the motor shaft, which is obviously superior to the noise and vibration. Type IS series cold water pump This type of pump is commonly used in air conditioning water circulation, so it is also called air conditioning chilled water circulation pump.

2, the characteristics of the hot water pump Hot water pump is also based on the ISG and ISW centrifugal pump series optimized design of the hot water pump products, especially the IRG type hot water circulation pump is the largest amount, because the pump uses a vertical installation motor In the upper part, there is a short bracket between the pump and the motor, which will not cause the water in the motor to burn out the motor due to the leakage of the mechanical seal. It can also be designed as a mechanical seal on the basis of the IRG hot water pump and by external tap water. The hot water high temperature pump product of the cooled unit can reach a maximum temperature of 240 ° C.