Mechanical seals used in oil and natural gas are high-end seals, which are expensive. In case of leakage, they should be replaced in time. However, unless there is a backup, the waiting period will be long. Junming mechanical seal provides customers with unique solutions. It is generally suggested that many unnecessary expenses can be saved as long as the renovation is carried out.

　　The equipment in the oil and gas industry has high requirements for mechanical seals, and the requirements for mechanical seals are also very strict. At present, in the oil and petrochemical industry and the natural gas industry, ordinary mechanical seals are commonly used for rotor machinery, which generally has the problem of short life. The problems of these key equipment are what Junming mechanical seals pay attention to. For example, when the oil production plant of the surface oil well pump started to use, it was found that there was a serious problem, that is, the plunger sealing performance was poor, and there were many liquid leaks, which reduced the utilization rate of the equipment and caused environmental pollution, directly affecting the smooth progress of production. In order to solve the problem of plunger seal leakage, we have made a detailed investigation and analysis on the structure type, seal material, working state and possible causes of leakage of the seal. In addition, the seal structure of the plunger is a seal structure composed of V-shaped seal ring and automatic compensation spring, which belongs to the dynamic seal contact type

　　The shaft end seal of the pumping unit reducer has been using traditional packing seal or lip shaped framework seal for many years, and some of them are oil retaining seals. After long-term use, many reducer boxes have experienced oil leakage at the shaft end, which has long plagued the oilfield equipment management. This not only brings much inconvenience to the equipment management, but also leads to poor bearing lubrication and sharp wear of the gear pair due to the lack of lubricating oil, It greatly increases the equipment expenditure of the oil production plant, so the use of mechanical seals on the reducer of the pumping unit to replace the original shaft end seals can well solve the problem of oil leakage at the shaft end of the pumping unit. It plays a positive role in increasing production and reducing consumption of the oilfield.