Priming pump is self-priming height, before sealing the gap with the impeller, the number of revolutions of the pump, the separation chamber liquid height and other factors. Impeller before sealing the smaller the gap, the greater the self-priming height, generally taken to be 0.3 to 0.5 mm; when the gap increases, in addition to a high degree of self-absorption decreased, the pump head, the efficiency decreased. The self-priming pump impeller height with the peripheral speed u2 increases, but the maximum self-priming height, increase the number of revolutions will no longer increase the height of self-absorption, this time just to shorten the self-absorption time; when the number of revolutions When the fall, along with the decline in self-priming height. ZW Self-priming sewage pump is the company's design staff in accordance with ZX-type self-priming centrifugal pump and QW structure and properties Sewage pumps, learn the advantages of similar products at home and abroad, and many absorbed the majority of the user's requirements and the views expressed , ZW65-30-18 pump, developed from a set of self-absorption and sewage, both as a general self-priming pump water as need bottom valve, pump, without irrigation water, ZW65-25-30 pump, but can pump large solid particles having a diameter of 60% and fiber length outlet diameter of the impeller diameter 1.18 times the dirt, sediment, mine waste impurities, manure handling and all sewage works and colloidal liquid, ZW65-25-40 pump, completely reduce labor intensity, but also to use, easy to move, install, minimal maintenance, stable performance. _ZW65-40-25 Priming pump priming pump mechanical seal _ (quality businessmen) Ltd provided by the Shijiazhuang-send pump. Shijiazhuang-school Pump Co., Ltd. (www.shipaipump.com) is specialized in "slurry pumps, submersible pumps, sewage pumps, chemical pump, pulp pump, water pump, mud pump, multi-stage" of the enterprise, the company of " honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Manager Xu.