Special equipment
Thread Content
Is the DN65 oxygen pipeline a special equipment? Why?
Pressure vessel pipes are not equipment.
When the working pressure is 0.1 MPa or higher, it is considered a pressure pipeline
The original poster’s statement is correct. Pressure pipelines also fall under the category of special equipment. Special equipment includes pressure pipelines. Special equipment does not simply refer to “equipment”. Gas cylinders are special equipment, and metal sealing components also fall under special equipment. Definition of pressure pipelines: These are tubular devices that use a certain pressure to transport gases or liquids. They are defined as pipelines with a maximum operating pressure of 0.1 MPa (gauge pressure) or more, carrying gases, liquefied gases, steam, or liquids that are flammable, explosive, toxic, corrosive, and have a maximum operating temperature equal to or higher than their standard boiling point; such pipelines also have a nominal diameter of 50 mm or more. Except for pipes with a nominal diameter of less than 150 mm and a maximum operating pressure of less than 1.6 MPa (gauge pressure), as well as the pipes that form part of the equipment used for transporting non-toxic, non-flammable, and non-corrosive gases. Among them, the safety supervision and management of oil and gas pipelines shall also be carried out in accordance with laws and regulations such as the Work Safety Law and the Oil and Gas Pipeline Protection Law. Therefore, the oxygen delivery pipeline of DN65 is considered a pressure pipeline, and more precisely, it falls under the category of special equipment.
It can’t be that absolute. For example, an oxygen pipeline with a pressure of 0.1 MPa and a diameter of DN20 does not fall under the category of pressure pipelines.
If the pressure reaches 0.1 MPa, it qualifies as a pressure pipeline; otherwise, it does not.
Its operating pressure is 0.8 MPa, and its diameter is less than 150 mm. The medium is a non-toxic, non-flammable, and non-corrosive gas. Is it still considered a special equipment?
Its operating pressure is 0.8 MPa, and its diameter is less than 150 mm. The medium is a non-toxic, non-flammable, and non-corrosive gas. Is it still considered a special equipment?
Didn’t they say it’s an oxygen pipeline of DN65?
Classmate, please make sure you see clearly what question I am answering.