Magnetic pumps, centrifugal pumps, self-priming pump precautions

Magnetic pump, centrifugal pump, self-priming pump Precautions Installation and precautions: 1. According to the basic size of the concrete foundation, at the same time to bury the anchor bolts. 2. Pump and motor should be checked before installation, all parts should be intact, the pump should be no debris. 3. The unit on the basis of the base plate and placed between the wedge pad, wedge pad by adjusting the level to find the pump. After adjusting, tighten the anchor bolts. 4. Pump suction, discharge pipe should be brackets, can not be used to pump support. Import and export pipe diameter should be consistent with the pump import and export caliber. 5. FZB series of self-priming pump should be installed before the entrance pipe, fill the liquid and then outlet pipe, correct steering. Pump inlet pipe must be matched with the pump, and the total length of not more than 5 meters, otherwise it will affect the self-priming performance, self-priming height can be simply calculated according to the right formula: Self-priming 3m water / water density = actual self-priming height. 6. Installation is completed, and finally turn the coupling by hand, check whether the phenomenon of rub touch, turn the installation is completed easily. 7. Magnetic pumps are strictly prohibited with the extraction of particles and easy to crystallize the media, does not allow the closure of the discharge port in the case of continuous operation, the need to maintain a minimum flow. 8. In order to prevent debris from entering the pump, a filter should be set up at the inlet. The filtration area should be more than 3 ~ 4 times of the pipe cross-sectional area. 9. Lift pump should also be installed in the outlet pipe check valve to prevent water hammer suddenly shut down damage. 10. Must ensure that the pump installation height in line with the pump NPSH, and consider the pipeline loss and medium temperature. NPSHa: NPSHa: Available NPSH (m) NPSHr: Required NPSH (m) NPSHa = 106 (Pa-Pv) / ρg ± hs-hfPa: Pressure acting on the surface of the conveying medium (MPa) Pv: Vapor pressure of the medium (MPa) ρ: Density of the medium (kg / m3) hs: Suction height ) g: Gravitational acceleration (m / s) 11. When the medium temperature is too high, take measures to cope with the seal to prevent deformation of the mechanical seal cracking. 12. Medium viscosity is too high, the pump performance, power will change, please contact us for details.

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