For other electric butterfly valve products, the destructive pressure test of 16KG can basically reach 25-35KG, but at present, domestic manufacturers do not carry out pressure test on their products before they leave the factory, which is a sampling inspection. Therefore, the products are unstable and have low safety. Under the working condition of high pressure, most manufacturers will experience water seepage, which is generally referred to as sweating in the industry. Bubble will appear in most manufacturers during air pressure test. 6、 Three guarantees of products and services
The product warranty of Dongfeng brand electric butterfly valve under normal working condition and medium is three years. Our price includes the following services: pre-sales consultation and model selection guidance, installation technical guidance during sales, and the most important thing is after-sales. Only reasonable profits can lead to good after-sales. If abnormal product conditions cannot be solved by phone, we will arrive at the site by plane within 48 hours to solve them.
Other electric butterfly valves are guaranteed for one year under normal working conditions and medium. Low price products are unprofitable, and unprofitable factories will not develop into large factories. They are basically small workshops or factories without professional after-sales service. Some conscientious manufacturers also replace their products when they have after-sales service, and they will not send professional technicians to the site to deal with problems in a timely manner.
The above preparation is intended as a supplement to the price comparison between new and old customers, so that everyone can understand it and make clear product choices. Our products are comparable to Japanese products, but their prices are about ten times ours. The above is also an analysis and comparison based on our years of research, development, production and sales of electric butterfly valve products and the current situation of the industry. We hope that friends from all walks of life can correct and understand the shortcomings and deviations. All manufacturers in the industry are developing and changing. We hope that we can work together to create international standard products and our national brand.