How to Select Gas Equipment
KAIGEN GAS EQUIP.
ONLY DO PROFESSIONAL!
our KAIGEN
our LEO
Other Inferior Brand
Brand Positioning
High-quality, reliable and worry-free products.
Meet the needs of mass high-end market, niche market and customization.
Provide products with reliable quality and reasonable price.
Products are manufactured for the mass mid-range market.
The understanding of the brand is limited to the design of words and graphics, without the concept of brand positioning. Products are unable to enter the high-end and mid-range markets.
Brand Mission
Resolutely maintain the brand image of users and provide products with worry-free quality.
Meet the rational needs of users and moderately reduce the cost of customers purchasing and using gas equipment.
There is no concept of brand mission. Believe in the creed of "low price is competitive". Other producers cannot understand why the prices of inferior brands are always lower than the manufacturing costs.
Brand Concept
Produce with high standard and strict requirement.
Respect life. Do a good job in product and service research and development. Meet the high standards and high reliability requirements of the market.
Products meet standards requirement.
Increase product categories and improve service levels while meeting brand positioning requirements.
Poor product quality.
Without R&D capabilities, can only increase their product categories and the number of sales personnel in mature markets for the purpose of profit.
Product Safety And Stability
Excellence.
Goal: high quality, reliable, worry-free.
High market recognition and good customer reviews.
Good.
Good customer reviews.
Poor.
Product quality, safety and stability cannot be guaranteed. For example, the product heights and verticalities are often different.
Whether To Accept Customer's Request That Does Not Meet Production Standards Or Brand Positioning?
Will not accept.
Will not accept.
Accept.
No concept of brand positioning.
Does Each Product Have To Be Certified By A Third-Party Inspection Agency To Ensure That The Production And Quality Meet The Standards?
Yes.
Regardless of whether the customer requires it or not, each product must be inspected by a third-party inspection agency to verify that the production and quality meet the standards. Products that have not been certified by a third-party agency or that fail the certification shall not be shipped.
According to customer requirements.
According to customer requirements.
Whether Wages And Insurance Premiums Are Paid In Accordance With Legal Requirements?
Yes.
The employee benefits are excellent. People are proud to work in the company.
Yes.
The employee benefits are good.
No. Employee benefits are average.
The wage system is mainly piece-rate. If product sales are poor, employees are given holidays. It is also common for the wages paid to be lower than the minimum wage stipulated by law, especially for new employees.
A considerable number of employees are not insured by the company in accordance with the law, including new employees. And try to pay as little insurance premium as possible for each insured employee.
Operation Staffing And Training
The operating staff is adequate, their salaries are relatively high, and the workforce is stable. In order to achieve safe production and quality control, the operating staff corresponds to the operating process one by one (one person is responsible for only one process, or multiple people are responsible for one process but the division of labor and responsibilities are clear), and has received standardized and strict safety operation training.
The staffing is relatively sufficient, the workforce is appropriately streamlined, and the workforce is relatively stable. Workers can only start work after passing the training.
The staffing is insufficient, and the workers only receive simple training, and even no training for unimportant tasks.
The workers are paid by piecework, and their salary income is very unstable. One person needs to work in multiple positions to keep the workshops running. The workforce is unstable, and the recruitment of workers needs to be carried out continuously.
Production Safety Status
A sound safety production system has been established, the safety production responsibility system has been implemented, safety production management personnel are fully equipped, and safety production requirements are strict.
Enterprises are ashamed of safety production accidents, and relevant personnel, especially the top leaders, must be held accountable.
A relatively complete production safety system has been established and the production safety responsibility system has been implemented.
After a production safety accident occurs, the relevant personnel will be held accountable.
The safety production system and responsibility system remain only on paper. Small safety accidents occur frequently, and claims for compensation due to safety production accidents are very common.
Quality Control System, Personnel And Equipment Configuration
Have established a sound quality control system with complete personnel and equipment. Strictly follow the standard requirements for production and testing. The production and testing requirements for products are higher than the standards.
Have established a sound quality control system with complete personnel and equipment. Strictly follow the standard requirements for production and testing.
The quality control system is imperfect, some quality control systems remain only in documents, quality control staff are insufficient, and testing equipment is often idle. For example, customers often find that valves or accessories on the product are not installed and tightened.
Whether To Sell Semi-Finished Or Untested Products?
Responsible for quality and do not sell semi-finished and untested products.
Responsible for quality and do not sell semi-finished and untested products.
Semi-finished and untested products are sold for profit.
After-sales Service
Equipped with a professional after-sales service team. Proactively track and solve the problems faced by customers after customers have provided feedback on their after-sales service needs. Excellent product quality, mature management system, standardized after-sales service, so the after-sales cost is low.
Provide after-sales service. Proactively solve the problems faced by customers after customers have provided feedback on their after-sales service needs.
After-sales service personnel are not provided for the purpose of reducing costs. After-sales service is mainly coordinated and completed by individual sales personnel with little power and authority. There is no standardized process, and the after-sales results depend only on the individual person in charge of the company. After-sales costs are high. In order to reduce costs, reducing the number of customer claims and feedback on quality issues is used as the performance evaluation content of individual sales personnel, rather than systematically and fundamentally solving problems. Sales personnel are often forced to "sacrifice" their own personal interests to make up for the losses of customers.
Raw Material Selection
Use high-quality and stable quality seamless steel pipes, hot-rolled round steel, forging raw materials and other consumables.
Use seamless steel pipes, hot-rolled round steel, forging raw materials and other consumables of medium quality and stability that meet standard requirements.
Use low or even the lowest price seamless steel pipes, hot-rolled round steel, forging raw materials and other consumables.
Whether Ultrasonic Testing Is Performed On Steel Pipes, Round Steel Or Forging Machined Cylinders That Have Not Been Ultrasonically Tested One By One
Yes.
Yes.
No.
Spot checks to reduce costs.
Requirements For Casting Quality Grade And Stability
Not lower than standard requirements, excellent stability.
Meet standard requirements and have good stability.
Meets standard requirements but has poor stability.
Selection Of Accessories
Choose and use high-quality accessories whose materials, manufacturing processes and performance indicators meet standard requirements. Excellent stability and durability.
Reject low-quality accessories.
Consider the cost-effectiveness and choose accessories with good quality, durability and stability. The material, manufacturing process and performance indicators of the accessories meet the standard requirements.
Reject low-quality accessories.
In order to reduce the selling price and improve competitiveness, cheap, fragile and non-durable accessories are used. The quality stability of accessories is poor.
Shell Wall Thickness Test
Have established a round complete quality control system with complete personnel and equipment. The wall thickness of each shell is tested strictly in accordance with standard requirements.
Have established a round complete quality control system. The wall thickness of each shell is tested strictly in accordance with standard requirements.
Only one wall thickness test is performed on multiple batches of shells produced from one furnace or batch of steel pipes, hot-rolled round steel, and forgings.
Shell Manufacturing Tolerance Test
The complete quality control system has been established with complete personnel and equipment. Each shell is strictly tested for manufacturing tolerance in accordance with standard requirements.
The complete quality control system has been established. Each shell is strictly tested for manufacturing tolerance in accordance with standard requirements.
Only one manufacturing tolerance test is performed on multiple batches of shells produced from one furnace or batch of steel pipes, hot-rolled round steel, and forgings.
Whether The Product Thread Meets The Standard?
Meets the standards.
Meets the standards.
In order to avoid the situation where the threads of the accumulator and the accessories do not match, the threads of the accessories need to be measured before the accumulator is produced, which prolongs the production time, especially when the accessories need to be purchased from outside.
Shell Inner And Outer Surface Treatment And Test
The roughness of the inner and outer surfaces of the bladder accumulator shell is not lower than the standard requirements (generally Sa2.5). The surface roughness of the piston and diaphragm accumulator shells meets the standards and usage requirements.
Have established a round quality control system with complete personnel and equipment. The inner and outer surfaces of each shell are strictly tested in accordance with standard requirements.
The roughness of the shell meets the standards and usage requirements. The delivery standards can be improved according to customer requirements.
Have established a round quality control system to strictly test the inner and outer surfaces of each shell in accordance with standard requirements.
The roughness of the inner and outer surfaces of the shell is poor, and often does not meet the standards.
The surface inspection of the accumulator shell only checks whether there are any debris that has fallen off inside the shell, and whether there are large and deep pits or large and sharp protrusions on the outer surface.
Mechanical Properties Test Of Shell After Heat Treatment (Tensile, Impact, Cold Bending, Flattening Test, Etc.)
A complete quality control system has been established with complete personnel and equipment. Whether it is necessary to extract a shell for scrap sampling or to make a test sample, each batch of shells is strictly tested for mechanical properties in accordance with the standard requirements. The tested samples are retained according to the standard requirements.
A complete quality control system has been established. Whether it is necessary to extract a shell for scrap sampling or to make a test sample, each batch of shells is strictly tested for mechanical properties in accordance with the standard requirements. The tested samples are retained according to the standard requirements.
One shell must be scrapped for each batch of shells to undergo mechanical property test after heat treatment. The cost is high, so only one mechanical property test is conducted for multiple batches of shells produced from one furnace or batch of steel pipes, hot-rolled round steel, and forgings. Under the condition of long-term normal production, no new tested samples are stored into the cabinet which keeps mechanical property tested samples.
Shell Hardness Test
Have established a round complete quality control system with complete personnel and equipment. Hardness tests are carried out on each shell in strict accordance with standard requirements.
Have established a round complete quality control system. Hardness tests are carried out on each shell in strict accordance with standard requirements.
Only one hardness test is performed on multiple batches of shells produced from one furnace or batch of steel pipes, hot-rolled round steel, and forgings.
Shell Non-destructive Test
The complete quality control system has been established with complete personnel and equipment. Conduct non-destructive testing on each shell in strict accordance with standard requirements.
The complete quality control system has been established. Conduct non-destructive testing on each shell in strict accordance with standard requirements.
Only one nondestructive test is conducted for multiple batches of shells produced from one furnace or batch of steel pipes, hot-rolled round steel, and forgings. If customers request a nondestructive test report, customers have to pay a high fee. The test is only conducted after the customer agrees to pay the fee, or even without conducting the test and directly fabricating the test data (especially when the customer requests the nondestructive test report after the goods leaving the factory).
Shell Water Pressure (Or Hydraulic Pressure) Test
A complete quality control system has been established with complete personnel and equipment. Conduct external or internal water pressure test on each shell in strict accordance with standard requirements.
A complete quality control system has been established. Each shell is subjected to external or internal water pressure test in strict accordance with standard requirements.
Only the internal water pressure test equipment is available. Impossible to carry out the external water pressure test.
Are Shells Dried After The Water Pressure Test?
Yes.
Use hot steam to dry the inside of the shell.
Yes.
Use hot steam to dry the inside of the shell.
No.
After the hydraulic test, the shells are directly transferred to the nest process.
Shell Hydraulic Burst Test
Have established a round complete quality control system with complete personnel and equipment. Hydraulic burst tests are carried out strictly in accordance with standard requirements. The tested shells are stored in accordance with standard regulations.
Have established a round complete quality control system. Hydraulic burst tests are carried out strictly in accordance with standard requirements. The tested shells are stored in accordance with standard regulations.
One shell must be scrapped for each batch of shells to undergo hydraulic burst test. The cost is high, so only one hydraulic burst test is performed on multiple batches of shells produced from one furnace or batch of steel pipes, hot-rolled round steel, and forgings. Under the condition of long-term normal production, no new shells after the burst test are stored in the burst tested shell retention area.
Accumulator Sealing Test
The complete quality control system has been established with complete personnel and equipment. Each accumulator is strictly tested for sealing test in accordance with standard requirements. The pressurization rate and holding time meet the standard requirements.
The complete quality control system has been established. Each accumulator is strictly tested for sealing test in accordance with standard requirements. The pressurization rate and holding time meet the standard requirements.
Each accumulator is tested for sealing, but the pressurization rate is fast and the pressure holding time is lower than the standard requirements.
Accumulator Action Performance Test
A complete quality control system has been established with complete personnel and equipment. The action performance test of each accumulator is carried out strictly in accordance with the standard requirements, and the number of test actions meets the standard requirements.
A complete quality control system has been established. The action performance test of each accumulator is carried out strictly in accordance with the standard requirements, and the number of test actions meets the standard requirements.
The action performance test is time-consuming, in order to reduce production costs, the number of accumulators and the number of actions tested are less than the standard requirements.
Air tightness Test Of Welded Diaphragm Accumulator During Storage
Have established a round complete quality control system with complete personnel and equipment. Air tightness tests during storage are carried out strictly in accordance with standard requirements. The accumulators are stored in a standard environment, and the number of storage days meets the standard requirements.
Have established a round complete quality control system. Air tightness tests during storage are carried out strictly in accordance with standard requirements. The accumulators are stored in a standard environment, and the number of storage days meets the standard requirements.
The storage time of the air-tightness test during the storage process is long and the accumulator cannot be delivered quickly, so the storage environment requirements for the accumulator are relaxed and the storage days are shortened.
Thermal Shock Test Of Welded Diaphragm Accumulator
The complete quality control system has been established with complete personnel and equipment. Hot and cold shock tests are carried out strictly in accordance with standard requirements.`
The complete quality control system has been established. Hot and cold shock tests are carried out strictly in accordance with standard requirements.`
Only one hot and cold shock test is performed on multiple batches of accumulators produced by continuous welding or produced in each furnace or batch of steel.
Welded Diaphragm Accumulator Shell Annular Seam Test (Non-Destructive Testing)
A complete quality control system has been established with complete personnel and equipment. The joint welds of each batch of sampled shells are strictly tested in accordance with the standard requirements, that is, 100% radiographic testing.
A complete quality control system has been established. The joint welds of each batch of sampled shells are strictly tested in accordance with the standard requirements, that is, 100% radiographic testing.
100% radiographic test of the annular seam is time-consuming, in order to reduce production costs, the number of accumulators undergoing shell annular seam test and the length of the weld do not meet the standard requirements.
Welded Diaphragm Accumulator Shell Joint Weld Test (Non-Destructive Testing)
Have established a round complete quality control system with complete personnel and equipment. The joint welds of each batch of sampled shells are strictly tested in accordance with the standard requirements, that is, 100% radiographic testing.
Have established a round complete quality control system. The joint welds of each batch of sampled shells are strictly tested in accordance with the standard requirements, that is, 100% radiographic testing.
The shell produced by continuous welding is only tested once for the joint weld.
If Test Failed, Number Of Times Of Re-heat Treatment, Repair And Re-test
No more than twice.
No more than twice.
If it is considered safe for use, there is no limit on the number of times.
What To Do If Re-test Still Fails?
If the number of re-tests reaches the upper limit specified in the standard and the re-tests are still unqualified, the entire batch of shells or accumulators will be scrapped. There are dedicated quality control personnel to track and supervise the entire scrapping process.
If the number of re-tests reaches the upper limit specified in the standard and the re-tests are still unqualified, the entire batch of shells or accumulators will be scrapped.
If piece test item fails: Accumulators that are considered safe to use and have defects that are not easy to find, such as thin wall thickness at welding points or defects in local non-destructive testing, are sold normally. Shells that are considered unable to be used normally but can be utilized in production, such as shells with unqualified threads, shoulders or bottoms, have the unqualified parts cut off and used to produce small shells.