Within the warranty period, the supplier shall reply within 60 minutes after receiving the notice from the demander, and the service personnel shall arrive at the site within 24-48 hours. If the equipment is damaged due to the supplier's responsibility, if the user requests to replace the equipment, the supplier must accept it unconditionally, and all the expenses incurred shall be borne by the supplier. If it is caused by the user's responsibility, the supplier shall timely help the user to replace the equipment parts, charge the cost of the parts, and provide corresponding on-site technical services free of charge.
Outside the warranty period, after the warranty period, in order to safeguard the interests of the demander and make the equipment work normally, the supplier will provide lifelong free maintenance service. The spare parts supply will be 15% lower than the current market sales price, and can supply for 20 years continuously. For other service providers, only the cost of production will be charged.
When the equipment leaves the factory, the product name, specification, number, (code), standard number and quantity of vulnerable parts and tools shall be provided. (see Annex)
The supplier shall train the operation and maintenance personnel at the place designated by the demander. The trainees shall be able to understand the principle, performance, structure, purpose, troubleshooting, operation and maintenance.
1. Pre sales service
1. Technical support: introduce the company's products to users or other departments truthfully and in detail, answer various inquiries patiently, and provide the most perfect relevant technical data;
2. On the spot investigation: investigate the gas consumption site of customers to understand the needs of customers;
3. Scheme comparison and selection: to analyze, compare and formulate the gas consumption scheme suitable for customers' actual needs;
4. Technical cooperation: assist relevant design units to carry out technical exchanges, listen to the suggestions of users and relevant departments, and make reasonable improvements to the products according to the actual situation when designing and manufacturing products, so as to meet the reasonable requirements of users.
5. Product planning: according to the specific gas requirements of customers, carry out the professional design of "tailor-made", so that customers can obtain the most economic investment cost.
2. Service in sale
To sign contracts in accordance with the relevant laws and regulations of the state and strictly abide by the rights and obligations of performing the contract terms;
Provide detailed equipment installation drawings (process flow diagram, layout plan, electrical schematic diagram and wiring diagram) to relevant departments within ten days after the contract comes into effect;
The engineering personnel strictly follow the national safety and quality inspection requirements, carry out quality supervision on all links of equipment manufacturing and assembly to ensure the quality of equipment;
Service engineers provide free professional and comprehensive product technical knowledge training for users, and can provide comprehensive and high-quality services for enterprises at any time.
All the equipment are equipped with import and export flange and anchor bolt, and all certificates are complete (the supplier shall provide pressure vessel certificate, product certificate, operation manual, maintenance manual, etc.).
The service engineer will complete the installation and commissioning of the equipment after delivery with the fastest speed and high quality under the proper support of the customer.
On site service schedule:
| Serial number | Technical service content | Time | Number of professional titles | Remarks | |
| 1 | Equipment in place and pipeline layout guidance | According to the actual situation | engineer | 1 | Assist users to set up operation rules and management system of nitrogen compression station. |
| 2 | Equipment installation instruction | According to the actual situation | engineer | 1 | |
| 3 | Inspection before equipment commissioning | According to the actual situation | engineer | 1 | |
| 4 | Monitoring test run | 2 working day | engineer | 1 | |
| 5 | On site technical training | 1 working day | engineer | 1 | |
3. After sales service
1. The company has an after-sales service department to ensure the safe operation of the system;
2. The warranty period of the equipment shall be from normal operation for 12 months or 18 months after delivery, whichever comes first. During this period, the cost of repair or replacement of the equipment and parts provided by the supplier due to quality problems shall be borne by the supplier. If the equipment is damaged or replaced due to wrong operation and improper use, the expenses incurred shall be borne by the user. After the warranty period, the supplier shall provide lifelong paid equipment maintenance service.
3. Establish user files to make sure that the company's internal documents can be checked, master the operation of the equipment, and regularly provide maintenance methods and precautions to users;
4. The service personnel call back once every three months, check the equipment operation status on site every six months, and provide reasonable suggestions to users;
5. After receiving the telex or telephone service information from users, we will give a definite reply immediately. If the problem cannot be solved by telephone, the equipment shall be repaired at the user's site within 24 hours;
6. Regularly send people to customers to do repair and maintenance training for customers free of charge.
7. Respond to every request, pay regular return visit, and provide lifelong service;
8. After the expiration of the warranty period, the company implements lifelong maintenance and tracking of the equipment, and provides accessories and services at the cost price;
9. According to the service quality management standard, our company provides the following post operation service commitments for users:
| Serial number | Technical service content | Time | Note |
| 1 | Establish user equipment parameter file | Before leaving the factory | The regional office is responsible for the implementation and filing with the headquarters |
| 2 | Establish user equipment parameter file | After commissioning | The regional office is responsible for the implementation and filing with the headquarters |
| 3 | Telephone follow-up | The equipment runs for one month | Understand the operation data and record it to the headquarters |
| 4 | On site return visit | The equipment runs for three months | Understand the operation status of the components and train the user operators again |
| 5 | Telephone follow-up | The equipment runs for six months | Understand the operation data and record it to the headquarters |
| 6 | On site return visit | The equipment runs for ten months | Guide the maintenance of the equipment, and train the operators to replace the wearing parts |
| 7 | Telephone follow-up | One year operation of the equipment | Understand the operation data and record it to the headquarters |