What is the self-priming height of a self-priming pump?
Thread Content
This post was last edited by foam_ZPTK on 2018-7-18 08:46. Fluoroplastic self-priming pumps are designed specifically for use in situations with low liquid levels; the pump is installed above the tank, making installation, operation, and maintenance very simple. The priming time for a fluorine-lined self-priming pump is usually 2–3 minutes; if it takes more than 3 minutes to prime, it means there is a leak in the inlet pipeline of the pump, and this needs to be checked ； Is the outlet pipeline closed? If it is closed, exhaust will not be possible ； Check valves also affect the self-priming effect, as the airflow cannot push past them. The self-priming height and the lift height of fluoroplastic self-priming pumps are two distinct concepts; the self-priming height refers specifically to the distance over which the pump can draw in air, which is 3 meters or less – that is, the distance from the pump inlet to the liquid surface. The suction lift specifically refers to the effective NPSH of the pump, which is 10.33 m of water column at atmospheric pressure; in other words, the suction lift is always greater than the self-priming height. Feel free to ask anytime: victory:
The self-priming height of the FZB is far too low; the VSP fluoroplastic high-performance vacuum self-priming pump can draw water from a height of six to seven meters, and the self-priming time is only a few dozen seconds
This post was last edited by 3983596_FPPZ on 2019-1-21 at 13:51. The concept of suction height isn’t very meaningful
Is this suction height such that water can still be drawn up 20 cm even when the liquid level is below the inlet pipeline, using wind to carry away the water?