ZX self-priming pump working principle and structure described pump sealing mechanism to prevent liquid oil inside the high pressure zone to the low pressure area is leaking around the seal ring 80ZX60-55 pump, before sealing ring mounted on the pump body, after sealing rings mounted on the bearing body on the long-term operation when the pump seal ring wear to a certain extent self-priming and affect the efficiency of the pump and self-priming performance 80ZX43-17 pump, should be given replacement. Priming pump to be installed at the end valve it? Do not install the bottom valve 100ZX100-20 pump, non-self-priming pump using bottom valve to ensure that the inlet pipe is filled with water. Self-priming pump is not fitted bottom valve, but when you buy a new self-priming pump for the first time to the casing above the vent opening, the shell is filled with water or materials, this is like the first time water tank filled with water the same. Do not install the bottom valve, pump may start after the low-pressure inlet. If it is not self-priming pump foot valve the 80ZX50-25 pump, self-priming pump, ZX self-priming pump is provided by Shijiazhuang-Pump Co., Ltd. faction. Shijiazhuang-school Pump Co., Ltd. (www.shipaipump.com) in this area other devoted boundless enthusiasm and passion, Shijiazhuang-pump has been sent to the customer-centric, for customers to create the concept of value, quality, service to win the market, and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcomed the inquiry, Contact: Manager Xu.