Corrosion resistance of self-priming pump pipeline installation standard

anti-corrosive self-priming pump suction pipe placed device standard

anti-corrosive self-priming pump suction pipe due to the liquid level is lower than pump corrosion self-priming pump is in the process of suction pipe smoke into negative pressure condition are first launching talents by suction, so the resistance to the corrosion of self-priming pump suction pipe device placed should be in accordance with the following corrosion self-priming pump device standard placement device:

( 1) Suction pipe water containing dissolved gas, due to the decrease of the pipeline pressure escape, if somewhere in suction pipe pneumatosis, will form the airbag, and can affect the water pipe. Severe damage when they really curtilage water absorption. In order to make the water pump can not come in time suction gas pipeline, the suction pipe should be along the water flow with continuous rising slope, inside the gas is removed from the pump at the entrance to the top of the pump housing.

( 2) In order to make corrosion resistant self-priming water pump suction pipe does not appear the phenomenon of air leakage, suction piping necessary completely sealed air can be inhaled, corrosion resistant self-priming pump suction piping general selection of steel pipe, joint welding flange method may be selected.

( 3) Each corrosion self-priming pump suction pipe should set alone. And should try to cut the length of suction pipe and pipe fittings, to reduce the suction pipe head loss. Can choose more than one water pump from the Shared suction duct suction, but the number of not less than two, a problem occurs, the rest can still through the planning of water suction pipe. When sharing suction pipe set, should make the suction duct in the condition of positive pressure.

( 4) Suction device within the suction well, in order to avoid the suction inlet cyclone suction air, so the submerged depth of the claim must be imported, hanging high and certain spacing.

( 5) 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 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 underwater type and water type two kinds, now choose water type bottom valve, using water bottom valve, should make in order to suction pipe horizontal section length, so as to ensure the pump water filling starts, pipe can satisfy the vacuum value.

( 6) When water when the water level is higher than the pump axis, corrosion resistant self-priming pump suction pipe gate valves should be set up on the road, for the water pump maintenance.

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