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Design requirements for the water outlet of the small yellow pump

As a kind of pump, the small yellow pump must have a water outlet, otherwise it can't be used normally。 For the convenience of use, the design of the outlet must also meet the requirement of use。 First of all, it is the welding of the outlet and the steel pipe welding interface, which is convenient for later maintenance。
A check valve should be installed between the valve gates of the outlet to avoid the backflow of the outlet pipes, which is a small problem for experienced designers. A project of the water outlet pipe is specified in the design of the design flow rate, diameter is less than 250mm, the design flow of 1.5-2.0ml/s; diameter is less than 250mm, the design flow as the design personnel for yellow pump 2.0-2.5m/s., beginning in the design should



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