Products
Find out which our products can fit your company's demand:
- Single Spring Mechanical Seal
- Multiple Spring Mechanical Seal
- Wave Spring Mechanical Seal
- Metal Bellow Mechanical Seal
- Cartridge Mechanical Seal
- Stationary Seat
- Sealing Material
- Alfa Laval Pump Mechanical Seal
- APV Pump Mechanical Seal
- Grundfos Pump Mechanical Seal
- Flygt Pump Mechanical Seal
- Other Pump Mechanical Seal
Contact Us
Tel:+0086-577-80126008
Fax:+0086-577-86600862
You are here : Mechanical Seal Failure of media leaks
(1) static test leakage. Mechanical seal during installation because they do not care, often make the seal face is bruised, deformation, damage, clean up dirty, there are the granular impurities, or because of loose screws, no compression gland, machinery, equipment, lack of precision so that the sealing surface is not fully fit, will cause the media leak. If it is missing sleeve, the sleeve seal assembly is not enough compression or compression or damage. (2) periodic or intermittent leaks. Cyclical components of the mechanical seal rotor vibration, axial movement is too big, can cause leakage. Mechanical seal sealing surface have a certain specific pressure, so as to play a seal, which requires the mechanical seal to have a certain amount of compression spring, a thrust to the seal face, rotate it so that the sealing surface than produce the required sealing pressure. To ensure that a specific pressure, the mechanical seal pump shaft can not have too much requirements channeling, generally to ensure that the 0.25mm or less. But in the actual designs, the design of the unreasonable and often have a huge amount of channeling shaft, the use of mechanical seals is very unfavorable. (3) recurrent mechanical seal leakage. Regular mechanical seal leakage There are many reasons. First, the seal face of recurrent leakage caused by defects. Second, is the cause of recurrent secondary seal leakage. Thirdly, leakage caused by defects in the spring. Other areas, including the rotor vibration caused by leaks, transmission, tight set and thrust or loose parts causing leakage of poor quality, mechanical seal leakage caused by supporting institutions, the media has caused the recurrent leakage. (4) mechanical seal vibration is too large. Mechanical seal vibration is too large, resulting in loss of seal. However, larger vibration causes mechanical seal mechanical seal itself is often the reason is not only the pump but also in other parts of the source of vibration, such as unreasonable shaft design, processing reasons, lack of precision bearings, coupling parallel poor, radial force and other reasons.
3 measures dealing with failure
If parts of mechanical seal failure, you need to replace parts or to improve the precision machining parts, mechanical seals to improve their precision and accuracy of processing other parts of the pump mechanical seal effect is very favorable. To improve the sealing effect of static friction ring surface finish and roughness demanding. Static and dynamic friction surface of the width of the ring is not, generally 2 to 7 mm.
3.1 Mechanical seal vibration, heat treatment
If the static ring and the gap is too small sealed chamber, we should increase or decrease the turning diameter of the sealed chamber diameter, at least to ensure that the gap 0.75mm. If the friction pair is improper, we must change the dynamic and static ring material, to temperature, corrosion-resistant. This will reduce the mechanical vibration and heat sealed.
3.2 Treatment of mechanical seal leakage
Mechanical seal leakage is due to various causes, we have to deal with specific issues. To minimize leakage, installing the mechanical seal must be assembled in strict accordance with technical requirements, but also note the following.
3 measures dealing with failure
If parts of mechanical seal failure, you need to replace parts or to improve the precision machining parts, mechanical seals to improve their precision and accuracy of processing other parts of the pump mechanical seal effect is very favorable. To improve the sealing effect of static friction ring surface finish and roughness demanding. Static and dynamic friction surface of the width of the ring is not, generally 2 to 7 mm.
3.1 Mechanical seal vibration, heat treatment
If the static ring and the gap is too small sealed chamber, we should increase or decrease the turning diameter of the sealed chamber diameter, at least to ensure that the gap 0.75mm. If the friction pair is improper, we must change the dynamic and static ring material, to temperature, corrosion-resistant. This will reduce the mechanical vibration and heat sealed.
3.2 Treatment of mechanical seal leakage
Mechanical seal leakage is due to various causes, we have to deal with specific issues. To minimize leakage, installing the mechanical seal must be assembled in strict accordance with technical requirements, but also note the following.
