For pump Mechanical seal manufacturer Precautions for
When the temperature of the conveying medium of the mechanical seal for the pump is too high or too low or contains impurities, particles, inflammables and explosives, corresponding measures such as blocking, flushing, cooling and filtering must be taken. Here are the precautions for the mechanical seal of the pump.
We also need to know a lot of relevant information when using the pump mechanical seal. For example, before operation, turn the gear by hand, and pay attention to whether the torque is too large, whether there is friction and abnormal sound. And the pump mechanical seal is to prevent liquid leakage. When using mechanical seals, various factors of the use environment should be analyzed under such circumstances to make the mechanical seals suitable for the technical requirements and medium requirements of the pump and have sufficient lubrication conditions, so as to ensure the long-term and reliable operation of the pump. It is suggested that everyone should also pay attention to it. Of course, its design and selection should be correct. Then the working pressure (i.e. head) of the pump will determine the specific pressure of the sealing face, and too high or too low will cause leakage. When working, if the working medium at different temperatures has a greater impact on the cold shrinkage of the sealing material. Therefore, improper use at this time will cause deformation of the sealing surface and leakage. In addition, the composition and acid-base property of its working medium have a great impact on the mechanical seal, and if there is granular material in its working medium. If it enters the friction pair during operation, it will damage the sealing end faces of the dynamic and static rings.
In addition to the points we mentioned for everyone, we should pay attention to when using mechanical seals for pumps. It also needs to know that its assembly should be suitable. The sealing effect may not be better if the spring compression amount is large, because the spring compression amount is too large, in this case, the friction pair will be rapidly worn and may be burned instantly. Excessive compression will make the spring lose the ability to adjust the end face of the dynamic ring, and sometimes it will lead to the failure of the pump mechanical seal. The tightening of the dynamic ring seal ring is not necessarily the best, so you should be clear that if it is too tight, it will increase the wear between the seal ring and the shaft sleeve, causing excessive leakage. At the same time, in this case, it will also increase the resistance to the axial adjustment and movement of the dynamic ring. It cannot be adjusted in time when the operating conditions change frequently, and some will affect the mechanical seal effect of the pump.
