design requirements
When designing straight thread sleeve connection, the following factors need to be considered:
1. Working pressure and temperature range of the connection to determine the appropriate thread specification and material.
2. Bearing capacity and fastening force of the connection to ensure the reliability of the connection.
3. The sealing performance of the connection to prevent leakage and oil leakage.
4. Convenient installation and disassembly, ensuring the convenience of maintenance and replacement.
Manufacturing requirements
The manufacture of straight thread sleeve connection shall meet the following requirements:
1. The thread machining accuracy shall meet the national standards to ensure the thread matching and reliability.
2. The material of casing shall meet the design requirements, and the material shall have sufficient strength and corrosion resistance.
3. The surface of the sleeve should be smooth and flawless to ensure sealing and prevent leakage.
4. In the manufacturing process, attention should be paid to prevent the deformation and damage of the sleeve to ensure the connection quality.
Installation requirements
The installation of straight thread sleeve connection shall meet the following requirements:
1. Before installation, check the state of sleeve and thread to ensure no damage and looseness.
2. Pay attention to the correct matching of threads during installation, and do not screw in or tighten them too tightly.
3. When tightening, alternate tightening method should be adopted to ensure that each thread has sufficient tightening force.
4. After tightening, inspection and testing should be carried out to ensure the tightness and reliability of the connection.
test method
The inspection of straight thread sleeve connection needs to follow the following methods:
1. Check whether the sleeve and thread are damaged, deformed or loose.
2. Measure the size and accuracy of the thread, whether it meets the national standards and design requirements.
3. Conduct leak test and pressure test to ensure the tightness and bearing capacity of the connection.
4. Carry out disassembly and reassembly tests to ensure the reliability and convenience of connection.