The gas pressure regulator is the main equipment in the pressure regulating facility, and the maintenance of the gas pressure regulator is a key management link to ensure safe gas supply. Once the gas pressure regulator fails, the unregulated higher pressure gas is directly sent downstream, and the consequences are disastrous. Therefore, various gas management units are paying more and more attention to issues such as the maintenance and service life of gas pressure regulators.

The difficulty of uniformly stipulating the service life of gas pressure regulators Regarding the service life of gas pressure regulators, not only in our country, but even in developed countries, there is no clear service life for various types of gas pressure regulators. Under normal circumstances, the manufacturer has certain instructions for the maintenance of the gas pressure regulator in the instruction manual, but it never mentions the life of the overall equipment. This is not the manufacturer deliberately avoiding the problem, but the following factors:

① At present, domestic voltage regulator products do not adopt a non-removable assembly structure for the overall equipment or the core components of the equipment, and most of the faults can be solved through maintenance.

② For existing gas pressure regulators, there are no relevant standards, regulations, or document regulations. Which parts of the structure can represent the life of the overall equipment, and there are no fatigue limit requirements and fatigue test requirements.

③ There are many types of regulators and different parts materials. Therefore, it is difficult to make uniform regulations for the life of gas pressure regulators.