There are gaps between the various components of the vortex pump clearance are clearly defined, if the gap is too large, it will affect the pump work, such as the gap between the vortex pump impeller and the cover is not To get too large, otherwise it will significantly reduce efficiency. What should be measured when the vortex pump inspection clearance it? Whirlpool pump inspection should be measured when the gap 1, the impeller and both sides of the axial clearance of the cover. General 2a = 0.17 ~ 020 mm, measured by pressure lead wire method. 2, impeller and pump casing radial clearance. The general radial direction to take c = 0.15 ~ 0.20 mm, with feeler gauge. 3, bearing clearance, generally take b = 0.10 mm or so, with feeler or vernier caliper measurement. 4, Coupling assembly clearance. General i = 1 mm, d = 4 ± 0.5 mm, measured with vernier caliper and depth scale. 5, the impeller and the key with the impeller and the shaft are with the slide fit. The key top clearance should be not less than 0.20 mm, two test gap should be 0.01 ~ 0.04 mm. Extended reading: Top ten brands of motor China Construction Water Exhibition Pump manufacturers ranked ptc exhibition industry Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Daohui (QQ / WeChat: 2355962924) http://beng.liuti.cn/ (service Hotline: 400-6030-811)