Valve assembly is the final stage in the manufacturing process. Valve assembly is the process of combining the various parts and components of the valve according to the specified technical premise to make it a product......The three common assembly methods for valves are as follows:
Complete interchange method (complete exchange method):
Definition: When the valve is assembled by the complete interchange method, each part of the valve can be assembled without any trimming and selection, and the assembled product can meet the specified technical requirements.
Features: The assembly work is simple and economical, the workers do not need a high level of skills, the production efficiency of the assembly process is high, and it is easy to organize the assembly line and organize specialized production.
Scope of application: It is suitable for valves with relatively simple structures such as stop valves, check valves, ball valves, and valves with medium and small diameters.
Repair method:
Definition: The valve is assembled by the repair method, and the parts can be processed according to economic precision. During assembly, a certain size with adjustment and compensation functions is repaired to achieve the specified assembly target.
Features: The parts can be processed according to economic precision, and the assembly precision requirements can be achieved through repair.
Scope of application: Suitable for single-piece, small-batch production and the manufacture of large-size valves.
Matching method:
Definition: The valve is assembled by the matching method. The whole machine can be processed according to economic accuracy. During assembly, a certain size with adjustment and compensation functions is selected to achieve the specified assembly accuracy.
Features: Similar to the principle of the repair method, but the way to change the size of the compensation ring is by selecting accessories instead of repairing accessories.
Example: For example, the top core and adjustment gasket of the double-disc wedge gate valve of the control valve model, the adjustment gasket between the two bodies of the split ball valve, etc., is to select special parts as compensation parts in the size chain related to the assembly accuracy, and adjust the thickness of the gasket to achieve the required assembly accuracy.
