The high-self-priming pump cannot draw water
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Recently, the vacuum level achieved by the vacuum pumping system of a high-self-priming pump has not been sufficient; the pump is unable to draw water. What’s the reason?
The inlet pipe is blocked, there is air leakage at the flange of the inlet pipeline, and the positive displacement pump is leaking air
Does the deformation of the sealing surface at the exhaust port of the strong self-priming pump affect vacuum pumping?
Does the deformation of the sealing surface at the exhaust port of the strong self-priming pump affect vacuum pumping?
Does the deformation of the sealing surface at the exhaust port of the strong self-priming pump affect vacuum pumping?
You need to check whether the air drawn in can be expelled as the suction device moves back and forth, whether the back side of the suction diaphragm can be sealed during inhalation – if there is leakage, a vacuum cannot be created – and whether any air returns to the inlet pipeline during exhalation
There must be a leak at the inlet, or there’s a leakage inside; what is the structure of the vacuum pump you’re using?