Fluorine-butterfly self-priming pump suction piping arrangement is right?

Fluorine-butterfly self-priming pump is manufactured lined with fluoroplastic materials, corrosion resistance, suitable for any concentration of acid and alkali salt medium, such as lining fluoride self-priming pump corrosion not only, also has the self priming, but any self-priming water pump self limiting, suction usually fluorine-butterfly self-priming pump self-priming height in 3 - 4 meters, then the users in the use of installing a self-priming pump, inlet piping arrangement to ensure that the suction is not affected? This paper introduces some correct and incorrect suction pipe installation method. 2, suction pipe installation within the suction well, absorbing well effective volume should not be less than one water pump water pump in 5 minutes. So the submerged depth of the claim must be imported, high suspension and certain spacing. 3, in order to let the self-priming water pump suction pipe leakage phenomenon, not a little suction pipe must be completely sealed air can be inhaled, self-priming pump suction pipe is usually used in steel tube, the welding joint or flange connection. 4, suction pipe water containing dissolved gas, due to the decrease of the pipeline pressure escape, if appear somewhere in the suction pipe pneumatosis, will form the airbag, and affect the water pipe. When serious destruction real curtilage water absorption. And i≥ 0. Inside the gas is removed from the pump at the entrance to the top of the pump housing. Specific size requirements as follows: 1, when the water has a large number of impurities, bell mouth should be set up under the screen. When the water pump for artificial irrigation or use of the water in the pressure pipeline pump is started. Suction pipe should be set on the bottom valve. Bottom valve is a check valve, filter, resistance is bigger. Bottom valve has two kinds of water and water. Underwater type bottom valve is installed at the end of the suction pipe, because is easy to be damaged, need to check, to inconvenience to use. Currently used more water type bottom valve. It has good using effect, convenient installation and maintenance, etc. When using water type bottom valve, should make the suction pipe horizontal section has enough length, so as to ensure the pump water filling starts, generating enough pipeline vacuum value. 0 to 1. 2m/s； Suction pipe during 250 ~ 1000 mm in diameter, flow rate of 1. 2 to 1. 6m/s； Suction pipe diameter was greater than 1000 mm & middot; Flow rate of 1. 5 ~ 2. 0m/s。 Since the irrigation pump ISG pipeline centrifugal pump, for example, a working design of suction flow rate may be appropriately increased. 3, each self-priming pump should be a separate suction pipe. And should try to reduce the length of suction pipe and pipe fittings, in order to reduce the suction pipe head loss. The rest of the suction pipe can still through the design of water. Gate valves shall be set up on the suction duct, switching and maintenance. When sharing suction pipe set, suction duct should be brought in a state of positive pressure. 4, when the water when the water level is higher than the pump axis, suction pipe gate valves should be set up on the road, for the water pump maintenance.
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