Acceptance criteria for sealing with pressure

Sealing with pressure refers to the working process of sealing under a certain pressure. Acceptance criteria refers to the specifications and requirements for the evaluation and inspection of pressure sealing work. The following is a description of the acceptance criteria for pressure sealing,

1. Preliminary preparation

1. Determine the purpose, requirements and scope of sealing with pressure.

2. Determine the pressure level with pressure sealing and the required materials and equipment.

3. Check whether the construction site is equipped, clean and barrier-free.

4. Provide training and guidance to personnel involved in pressure plugging to ensure that they have the necessary skills and knowledge.

Second, materials and equipment preparation

1. Use sealing materials that meet relevant standards to ensure that they have pressure resistance, corrosion resistance and sealing properties.

2. Ensure that the equipment required for pressure plugging is in good condition and has been tested and calibrated.

Third, the work process

1. According to the work plan, clean and empty the pipeline or equipment with pressure sealing to ensure that its interior is clean and free of impurities.

2. Check the sealing surface and connecting parts of the pipeline or equipment to ensure that they are smooth and smooth.

3. Use appropriate tools and methods to seal with pressure to ensure that the sealing material is evenly and tightly filled in the sealing surface or connection part.

4. According to the pressure grade and requirements, the pressure plug is properly tested to ensure that its sealing performance meets the requirements.

5. After sealing with pressure, make necessary records and reports, and carry out acceptance.

Iv. Acceptance standards

1. The pressure test results meet the design requirements, and the pressure holding time meets the specified standards.

2. The sealing material with pressure is evenly filled and dense, without obvious cracks, leakage points and leakage.

3. After sealing with pressure, the pipeline or equipment has no abnormal vibration, abnormal sound and leakage.

4. After sealing with pressure, there is no obvious deformation, loosening or falling off between the sealing material and the sealing surface or the connection part.

5. After sealing with pressure, the pressure and temperature of the pipeline or equipment are stable within the specified range.

6. Acceptance records and reports are detailed and accurate, including the location, pressure level, material and equipment usage, etc.

Five, stability precautions

1. Comply with the relevant stable operation procedures and standards to ensure the stability of personnel and equipment.

2. Use personal protective equipment that meets the requirements, such as gloves, glasses, masks, etc.

3. When performing pressure sealing, ensure that the surrounding environment is free from flammable, explosive and harmful substances.

4. In the process of sealing with pressure, it is forbidden to adjust the pressure and operate the equipment at will. If necessary, stop the operation and report it in time.

In SUMMARY:

The acceptance criteria for sealing work with pressure include the requirements of preliminary preparation, material and equipment preparation, work flow, acceptance criteria, and precautions. Through the evaluation and inspection of the sealing work with pressure in strict accordance with these standards, it can be ensured that the effect and quality of the sealing with pressure meet the specified requirements, and also ensure the stability of the staff and the surrounding environment.