BHZ standard chemical self-priming pump

BHZ standard chemical self-priming pump

BHZStandardized chemical pumpDesign conforms toISO2858 standard, horizontal, single-stage, single suction centrifugal pump, with a suction range of up to 8m, suitable for conveying medium containing small amounts of particles at room temperature. Adopting a large box structure, suitable for working conditions such as self-priming or unloading.

1. Product performance: Head can reach 125m, flow rate can reach 500m3/S, temperature can reach 350 ℃.

2. Common materials: BHZStandardized chemical self-priming pump materialCS austenitic stainless steel, martensitic stainless steel, duplex steel and other alloys.

3. The self-priming principle and precautions of BHZ self-priming pump:

According to the principle of gas-liquid mixing self-priming, it is designed with an external mixing structure. The working process of gas-liquid mixed self-priming pump: usually try to make a certain amount of water stored in the pump. After the pump is started, due to the rotation of the impeller, the air and water in the suction path are fully mixed and discharged into the air-water separation chamber. The gas in the upper part of the gas water separation chamber escapes, while the water in the lower part returns to the impeller and mixes with the remaining gas in the suction pipeline until all the gas in the pump and inlet pipeline is exhausted, completing self-priming and normal pumping. Considering the inherent characteristics of self-priming pumps, it is recommended not to install a bottom valve at the inlet of the suction pipe to avoid increasing the resistance loss of the inlet pipeline, reducing the self-priming height, and prolonging the self-priming time; Do not install check valves in the outlet pipeline, as this is not conducive to gas discharge. If it is necessary to install a check valve in the outlet pipeline for safety reasons, an exhaust pipeline should be installed between the check valve and the pump outlet.