Assembly testing of mechanical seals 
1. Replace the O-ring, spring, screw, and gasket. 
2. Replace the mechanical seal dynamic ring and static ring. 
3. Assemble mechanical seal components. 
4. Conduct static pressure test or operation test according to GB/T 14211. 
5. Provide maintenance and inspection reports and certificates of conformity 
6. Provide maintenance records and failure reports

Mechanical seal maintenance and disassembly 
1. Disassemble and clean the mechanical seal components in the order of their numbers (using chemical and ultrasonic cleaning). 
2. Classify and place the cleaned components, inspect the sealing end faces and damage to the machine seal components. 
3. Count the number and specifications of damaged sealing surfaces and components, and provide a report on the next steps of repair recommendations. 
4. Polish the sealing surface that is not severely damaged. 
5. Statistical mechanical seal auxiliary seal O-ring and gasket, screw, spring replacement plan.

Analysis of Mechanical Seal Failure 
1. Collect the operating conditions of the equipment used by the unit, and based on the operating condition data, determine the cause of seal failure 
2. Determine the maintenance value of mechanical seals based on the operating conditions 
3. Develop a maintenance plan based on the working conditions and determine the sealing material for the machine 
Operating Conditions 
Temperature: -20 ° C to+200 ° C 
Pressure: ≤ 2.0MPa 
Speed: ≤ 15m/s