ZW self-priming sewage pump, as the name implies, has the function of self-priming and sewage discharge, both can be pumped containing large particles of solids and dirt, sediment, waste impurities and all engineering sewage and gelatinous liquids and other advantages, but also can not install the bottom valve, do not need to be filled with water. So the older it is the more it receives people's widespread attention and application, then we will be ZW type submersible sewage pump features have been installed notes in detail.
ZW Self-Priming Sewage Pump’s Features
1. Long continuous operation time: Submersible sewage pump due to the pump and motor coaxial, short shaft, rotating parts of light weight, so the bearing load (radial) is relatively small, life expectancy is much longer than the general pump.
2. Low noise: Self-absorbing sewage pump has small vibration noise, low motor temperature lift, and no pollution to the environment.
3. Easy install and maintain: Small submersible sewage pumps can be freely installed, large submersible sewage pumps are generally equipped with automatic coupling device can be automatically installed, installation and maintenance is quite convenient.
4. Compact structure & small footprint: ZW submersible sewage pump is submerged under the liquid work, so it can be installed directly in the sewage tank, without the need to build a special pump room for the installation of pumps and machines, which can save a lot of land and infrastructure costs.
5. Saving labor: There is no vapor corrosion damage and irrigation and diversion of water and other problems. Particularly do not need to pour water to the operator has brought great convenience.
Installation Precautions of Submersible Sewage Pump
1. According to the size of the foundation, make a good concrete foundation, and bury the ground bolts at the same time.
2. Self-priming pump and motor should be inspected before installation, each part should be intact, and there should be no debris in the self-priming pump.
3. ZW self-priming pump sewage pump suction, spit out the pipeline should be bracket, can not use the pump to support. It should be noted that the caliber of the import and export pipeline should be unified with the caliber of the import and export of the pump.
4. ZW self-priming pump should be connected to the inlet pipe first when installing, and then connected to the outlet pipe after filling with liquid and correcting the steering. The inlet pipe of the pump must be matched with the pump, and the total length should not exceed 5 meters, otherwise it will affect the self-priming performance of the machine.
5. After the installation is completed, you need to turn the pump coupling by hand to check whether there is no rubbing phenomenon, if you can easily turn uniformly is the end of the installationIn order to prevent debris from entering the self-priming pump, in the inlet should be set up filter, the filter area should be greater than the cross-sectional area of the pipeline 3 ~ 4 times.
6. High head self-priming pumps in the export pipeline should also be installed check valve to prevent sudden shutdown of water hammer damage.
7. When the medium temperature is too high, the seal should take cooling measures to prevent the seal from deforming the static ring cracking.
8. Must ensure that the installation height of the self-priming pump in line with the pump's cavitation margin, and take into account the loss of piping and media temperature.
9. The machine is strictly prohibited to pump with particles easy to crystallize the medium, not allowed to close the discharge port in the case of continuous operation, need to maintain a small flow.
