Pumps with mechanical seal repair
by：Lepu Seal 2020-12-24
now at the request of the production safety and environmental protection request, the scope of the use of mechanical seal pumps with mechanical seal has been more and more widely, industrial kettle with mechanical seal industry equipment adopts mechanical seal to ensure no leakage between dynamic sealing surface. Industrial and chemical pump mechanical seal pumps varieties of heavy and complicated, type also each are not identical, but the walk funnelled there are five main: 1, between the shaft sleeve and shaft seal; 2, between the collar and sleeves seal; 3, between dynamic and static ring sealing; 4, the static ring and static ring sealing between; 5, sealing cover and seal between the pump body. Generally speaking, the collar of overhanging between shaft, sealing cover and pump body leakage of contrast between simple detection and processing, but should be detailed investigation, especially when the job of medium or high pressure liquefied gas, toxic or harmful gases, phase for some more difficult. The rest of the leaked intuitively, it is difficult to discern and discrimination should be in a long time, repair practice, on the basis of investigating the leaked symptoms, analysis and research, in order to obtain accurate conclusion, correctly use and repair.
AAA supplier from xingheng pump group
There is only one AAA supplier of mechanical seal, in fact, Guangzhou lepu machinery manufactured mechanical seal for xinheng’s pump for many years, and help their pump develop a big market in several province. Now xingheng pump group is a leading pump supplier in southe of china.
What is a mechanical seal?
A mechanical seal is a spare part that helps connect systems or mechanisms together by preventing leakage (e.g. in a pump), generating pressure, or excluding contamination. The effectiveness of a seal is dependent on adhesion of the sealants and compression of the gaskets. Normally, a mechanical seal includes rotating parts and stationary seal parts with secondary seal part like o-ring. Besides that, the material for secondary seal is usually rubber, like NBR, BUNA, EPDM or VITON (FKM).
How to choose the materials for mechanical seals?
There are some rules when choosing the materials for a mechanical seal. For example, we use ceramic as the material for stationary seals, carbon for the seal face, and NBR for the O-ring. Be careful when you use hard material for both rotary and stationary seal face. The temperature will be very high when mechanical seal runs, so make sure you have equipped cooling system for your mechanical seal. If not, the rubber parts of the mechanical seal will be get burnt soon.
How to choose the rubber part for a mechanical seal?
Different rubber working for different medium, NBR is a popular and cheap rubber material, normally working for clean water and not too high temperature, if working for some chemical medium, better choose epdm or viton, and if working for high temperature, then viton is a better material.
If I just have pump number, how can I know which mechanical seal fit which pump?
Please contact our sales, they will check for you, we have many data for pump and mechanical seal. And please try your best to offer pictures or seal number to us, that help to save lots of time for checking the mechanical seal items.
Famous brand of mechanical seal
This honor proved how good quality of our mechanical seal, and what nice service we offer to our client. “We will keep our high and stable quality, and improve our service for all clients, and lepu seal will be a super brand in south of china” Statement from Mr. Yue, general manager of Lepu Machinery.