Sealing of centrifugal pumps
Thread Content
Centrifugal pump sealing 1. Sealing ring. Since the liquid at the outlet of the centrifugal pump impeller is under high pressure while it is under low pressure at the inlet, the high-pressure liquid leaks back to the suction side through the gap between the impeller and the pump casing; therefore, a sealing ring is necessary. Its function is to reduce the leakage loss between the impeller and the pump casing ； On the other hand, it can protect the impeller from friction with the pump body. 2. Shaft end seal (abbreviated as shaft seal). There is a gap between the pump’s shaft and the pump casing; to prevent the liquid inside the pump from leaking out, or to prevent air from entering the pump (when the inlet is under vacuum), sealing is necessary.
Is that it? There’s nothing to share. I have a lot of information on seals, including O-rings, skeleton oil seals, U-cups, L-cups, etc.; unfortunately, some of it is internal company material. If anyone needs it, I can release some of it.
I need the materials from upstairs. It would be great if there were also materials related to mechanical seals!!!
I need it too. Please transfer it for everyone to share
Reply to 2# Carl-Yang: Thank you, please be sure to give it to me! BBOYWUNING@SINA.COM
I’m looking for information on mechanical seals. Thank you, kbly222@yahoo.cn
Reply to 2# Carl-Yang: Could you send me one? chfpshk@163.com
I’m looking for some materials; thanks to the person who shared them, 123424000@qq.com
The original poster has simplified it too much; to summarize in two points: 1. Mouth ring； 2. Mechanical seal
I didn’t realize the second one at all. .
There’s also the pump cover seal, and the pump cover gasket