Construction of water supply and drainage engineering pump, all for the general pump. Whether it is used for domestic water supply, water supply for production, fire water supply or water supply to tanks or water tanks or water supply directly to water utilities, universal pumps are used. In fact, different purposes, different occasions, the pump requirements are not the same, should be based on their different circumstances, the selection of a suitable pump, universal pump to the direction of dedicated pumps is an inevitable trend.

Tangent pump

In line with the national standard performance requirements of the fire pump, research and development success, the product by the National Fire Equipment Quality Supervision and Inspection Center testing, the indicators of qualified and pushed to the market in the project to be applied when the push-line pump. Tangential pump by the Northwest China Construction Design Institute to provide technical parameters and application conditions, Aerospace Industry Corporation 11 Institute developed. At that time, the focus was on designing a pump whose flow-to-head curve was close to a smooth straight line, which could be used as the most ideal pump in the design of fire-fighting water supply for high-rise buildings in order to solve the overpressure problem when the fire pump was operating at low or zero flow rate At the same time also considered the fire pump with other requirements. Therefore, the tangential pump overcurrent components made of stainless steel and aluminum alloy, pump and motor coaxial direct connection, with a compact, small footprint, smooth operation, reliable mechanical seal, low noise, high reliability, easy maintenance, long service life Features.

Tangent pump horizontal centrifugal pump, the most prominent feature is the flow ~ lift curve is very smooth. Pump flow changes from zero to the required maximum flow range, the head changes within 5%. The motor that drives the pump is an ordinary motor without speed change. It effectively solves the problem of pressure fluctuation when the flow rate changes in the process of water supply and serious overpressure when the flow rate is low. Compared with the parallel operation of multiple pumps can reduce the number of pumps to reduce the footprint, operation and management is simple; compared with the variable frequency speed pump can save investment and facilitate management, with more advantages to solve overpressure is more perfect Method.

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