DC Compressor is the Manufacturer, Supplier and Factory of Atlas Copco Air Compressor Check Valve in China, focusing on the field of gas compression equipment parts.With strict quality control system and perfect supply chain management, we can not only meet the diversified procurement needs of customers, but also help customers reduce procurement costs, while ensuring product performance and use experience in an all-round way.
As the core component of the air compressor, Atlas Copco air compressor check valve, also known as one-way valve, although the structure seems simple, but it undertakes the key task of ensuring one-way flow of air flow and safe and stable operation of the guarding equipment, and is an indispensable "safety guard" in the air compressor system.It can accurately block the high-pressure air in the oil-gas separator from flowing back to the main engine when the equipment is shut down, avoid the occurrence of rotor reversal phenomenon from the root, and effectively protect the core components of the main engine from damage.At the same time, it can firmly block the lubricating oil from spraying from the air inlet, which not only prevents the waste of lubricating oil, but also avoids the internal pollution of the equipment and ensures the product quality of the subsequent production process.
For industrial production, the stability of system pressure is directly related to production efficiency and product qualification rate. The check valve can continuously maintain the downstream system pressure stability during unloading or shutdown of the air compressor, which not only reduces the energy consumption when the equipment is restarted, but also reduces the loss of the equipment due to starting shock, and prolongs the overall service life of the air compressor.Some high-end models are more integrated with the oil cut-off valve function, forming a double protection of "one-way current limiting + oil cut-off protection", further improving the operation safety of the compression system.DC Compressor, as a professional supplier in the field of deep cultivation gas compression equipment, deeply understands the importance of this component, always insists on supplying original Atlas Copco products, and lays a solid foundation for the safe and stable operation of customer equipment from the source.
Reasonable installation position is the key to ensure the full performance of Atlas Copco air compressor check valve, and different installation positions bear different protection responsibilities.Among them, the most core installation position is the exhaust port of the main engine, which is connected with the main engine and the oil-gas separator. It is the first line of defense to block the backflow of high-pressure air and protect the main engine, which directly determines the safety of the equipment after shutdown.
Some large-scale industrial-grade air compressors are also equipped with additional check valves at the outlet of the oil-gas separator to form double protection, further improving the pressure stability and safety of the system.The valve is installed in the oil return pipeline, which can effectively prevent the oil return from flowing backwards, ensure that the lubricating oil can smoothly circulate to each part needing lubrication, ensure the lubricating effect of the equipment, and reduce the wear of the parts.In addition, it is often used at the inlet and outlet of dryers and filters, which can not only prevent the impact damage caused by airflow backflow on post-treatment equipment, but also avoid the secondary pollution of treated clean air and ensure the quality of compressed air.
DC Compressor has an experienced technical team, accumulated a large number of different industries, different types of air compressor installation cases.When customers purchase check valves, our professional technicians will provide accurate installation position suggestions and detailed installation guidance according to the specific equipment models, production scenarios and system configurations of customers to ensure that the valve installation specifications and best performance.
Atlas Copco air compressor check valve adopts high standard structure design, all parts cooperate with each other, adapt to harsh industrial operating environment, and have the advantages of high strength, high sealing performance and long service life.As the core bearing component, the valve body is made of high strength, wear and corrosion resistant metal. After precision machining and strict pressure test, it can stably withstand high pressure up to 414 bar. Even under long-term high load operation, it is not easy to crack and deform.
Spool is divided into two types of spherical and disc type, small air compressor valves mostly use spherical spool, with fast response speed, good sealing characteristics; large industrial grade air compressor is selected disc spool, can adapt to large flow demand, ensure circulation efficiency while taking into account sealing performance.Spring, as the key component of valve core switch, is made of high-quality elastic material. After special heat treatment, it has excellent elastic stability and fatigue resistance, which can provide pre-tightening force stably for a long time to ensure that the valve is tightly closed when there is no air flow.
Seal ring and valve seat are made of wear-resistant, oil-resistant and high-temperature resistant special rubber material. The sealing surface is precisely ground to achieve zero-leakage sealing effect and effectively avoid airflow leakage and lubricating oil leakage.Terminal interface has a variety of specifications, covering threads, flanges and other connection methods, can accurately adapt to different brands, different models of air compressors and pipeline connection needs.DC Compressor carries out strict quality inspection on each batch of incoming check valve parts, from material, size accuracy to performance parameters, one by one to ensure that each check valve delivered to customers meets Atlas Copco original quality standards.
One of the core advantages of Atlas Copco air compressor check valves is that they do not require external power, relying on air pressure differential to achieve full automatic control, fast response, accurate control, greatly reducing manual operation costs and risk of failure.Its working principle is based on a simple and efficient mechanical balance mechanism: in positive circulation, compressed air generated by the air compressor enters from the valve P port, and the air pressure gradually increases. When the pressure exceeds the sum of spring preload and friction force, it will push the valve core away from the valve seat to form a circulation channel. Compressed air flows smoothly to the A port to supply energy for subsequent production links.
When the air compressor stops or unloads, the air flow pressure at port P drops rapidly. When the pressure at port P disappears or the pressure at port A is higher than that at port P, the pre-tightening force of the spring and the reverse air flow pressure at port A act together to push the valve core to reset quickly and closely fit with the valve seat, completely blocking the reverse air flow channel, avoiding high pressure air backflow and lubricating oil leakage.This automatic control mechanism based on pressure difference has extremely fast response speed, can complete the opening and closing action of the valve core in milliseconds, accurately adapt to the start and stop of the air compressor and the load change, and ensure the system pressure stability and equipment safety.
DC Compressor's technical team has been deeply involved in the industry for many years and has a deep understanding of the working principle of check valves.We can provide customers with detailed explanation of working principle, operation demonstration and common problem analysis to help customers better understand the product characteristics and accurately judge the valve operation status.
Long-term in high-pressure, high-load operating environment, check valve may appear some common faults, timely troubleshooting and proper handling can effectively avoid fault expansion.Among them, fuel injection backflow is a common fault, mostly caused by aging damage of sealing ring, valve core stagnation or impurity blockage on sealing surface.In case of such problems, stop the pressure relief first, clean the valve core and sealing surface after disassembling the valve, and remove impurities; if the sealing ring is aged or damaged, directly replace the original sealing ring of the same model; if the valve core is seriously worn or deformed, it is recommended to directly replace the check valve to avoid subsequent failures.
Difficulties in starting or excessive current during start-up are mostly due to valve spool sticking and spring failure, resulting in lax valve closure. After shutdown, system pressure flows back to the main engine, increasing the starting load.At this time, it is necessary to disassemble the valve, check whether the valve core is stuck, clean the valve core and the inner cavity of the valve body; at the same time, check whether the spring has deformation, fracture or insufficient elasticity, and replace the damaged spring in time.
If the system pressure drops too fast, the check valve sealing surface may be worn, scratched, or there may be a leak inside the valve.The sealing surface can be precisely ground to repair wear marks; if the wear is too serious to repair, replace the sealing component or the entire valve.For the valve stuck caused by impurity blockage or spring fracture, it is necessary to completely disassemble the valve, thoroughly clean all parts, replace the damaged spring or valve core, and ensure that all parts are installed in place and closely attached during assembly.
DC Compressor provides 7×24 hours after-sales service. When customers encounter fault problems, just call the service hotline. Our professional technicians can respond within 10 minutes and provide remote guidance according to the fault description. If the remote solution cannot be solved, the fastest on-site repair is within 1 hour, which minimizes equipment downtime and reduces customer production losses.
Regular and scientific maintenance is the key to extending the service life of Atlas Copco air compressor check valves and ensuring their stable operation.Based on industry experience and product characteristics, we recommend a comprehensive check valve inspection and maintenance every 8000 hours of operation or one year, whichever comes first, to ensure potential problems are identified and addressed in a timely manner.
Before maintenance, it is necessary to operate in strict accordance with safety specifications. Turn off the power supply of the air compressor, close the relevant pipeline valves, relieve the pressure of the system, and ensure that there is no residual pressure in the valve body before maintenance.Then disassemble the check valve, check the status of core components such as valve core, spring, seal ring and valve seat one by one, and check whether there are problems such as wear, deformation, aging and corrosion.
Clean all parts thoroughly with compressed air or special cleaning agent to remove oil, dust and impurities on the surface, so as to avoid impurities affecting the sealing performance and switching flexibility of the valve.After cleaning, carefully check whether there are scratches, wear and other conditions on the sealing surface. If there is slight wear, grind and repair it. If the wear is serious, replace the corresponding parts in time.
During reassembly, strictly follow the installation specifications to ensure correct installation sequence and tight fit of all parts. Meanwhile, pay attention to the installation direction. The arrow mark on the valve body indicates the positive direction of air flow. Do not install it reversely.After the assembly is completed, a simple pressure test is carried out to check whether there is leakage in the valve. After confirming that there is no problem, it is connected to the system for use.
In addition, check valves should be inspected regularly in daily use to observe valve operation status, abnormal sound or leakage traces, and maintenance records should be made to provide reference for subsequent maintenance.DC Compressor regularly reminds customers to carry out maintenance, and provides customers with detailed maintenance instructions and professional maintenance training to help customers establish a scientific maintenance system and reduce the incidence of equipment failure.
Atlas Copco check valve itself has many advantages such as high quality material, precision manufacturing, multi-specification adaptation, safety design, integration, etc., and choose DC Compressor as the procurement channel, you can get a full range of protection and value-added services.DC Compressor is an authorized supplier of Atlas Copco. It has rich industry experience and perfect supply chain system, which can ensure that each check valve is original and genuine, and guarantee product quality from the source.
Headquartered in Shanghai, we have offices in Jiangsu, Zhejiang and other regions, forming a service network covering the core industrial belt of Yangtze River Delta, which can greatly shorten the distance with customers and realize rapid supply and timely service.According to the needs of different customers, we provide a variety of procurement solutions, support bulk procurement, customized procurement, but also according to customer brand needs to provide a variety of sales channels and preferential prices, to help customers reduce procurement costs.
In terms of service, we have established a full life cycle service system, providing professional product selection guidance for customers before sales, recommending the most suitable check valve model according to customer equipment model and production demand; providing installation guidance, technical consultation and other services during sales; providing 7×24 hours maintenance, regular inspection, parts replacement and other guarantees after sales, conducting telephone inspection once a month, conducting on-site inspection once a quarter, actively investigating potential problems, and assisting customers to better manage equipment.
With strict quality control, perfect service system and good market reputation, DC Compressor has served thousands of enterprises in various industries, covering steel, chemical, automobile, medical, new energy, food and beverage and other fields, and has won customer recognition and trust in the international market.Choosing DC Compressor is not only about purchasing a high quality check valve, but also getting a professional and reliable industrial equipment service partner.
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