The core maintenance function positioning of the VCU (Valve Control Unit) service kit for Atlas Copco screw air compressors
The VCU is an important control component of the compressor, responsible for regulating the actions of key valves such as intake valves and minimum pressure valves, directly affecting the loading/unloading switching, pressure stability, and energy consumption control of the unit. This service kit addresses issues such as control delay and abnormal valve actions caused by component aging and wear by replacing the vulnerable parts inside the VCU, restoring the response accuracy and stability of the valve control system.
Typical components included
The kit content varies according to the specific structure of the VCU, typically covering:
Electromagnetic valve cores, coils, etc. (solving valve drive failure or response lag problems);
Seals (such as O-rings, diaphragms, sealing gaskets, etc., ensuring the sealing of the gas and oil paths, preventing control medium leakage);
Springs, push rods, etc. (restoring the flexibility and accuracy of valve actions);
Filters, throttling holes, etc. (avoiding control failure due to impurities blocking);
Some kits may include seal ring installation tools or dedicated lubricating grease.
Material and design features
The electromagnetic components use high-stability materials to ensure reliability in long-term power-on conditions, reducing the risk of coil burnout or magnetic force attenuation;
Seals use oil-resistant, high-pressure-resistant elastic materials (such as fluororubber), suitable for the oil-gas mixed environment inside the VCU, ensuring sealing lifespan;
Mechanical components use high-precision processing techniques, precisely matching the VCU housing and valve drive mechanism, ensuring smooth transmission of actions.
Original equipment advantages
Control accuracy guarantee: The parameters of original components (such as electromagnetic force, stroke accuracy) are fully matched with the VCU design, allowing the restoration of precise valve control after maintenance, avoiding pressure fluctuations and energy consumption increases caused by incompatible parts;
System coordination: Signal matching with the main control system of the compressor (such as PLC) ensures the accurate execution of control instructions, maintaining the stability of the overall operation logic of the unit;
Durability improvement: Original-quality components have better anti-aging and anti-wear performance, extending the maintenance cycle of the VCU and reducing the failure rate.
