Pressure pipelines and pressure pipeline components
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This post was last edited by Keep running on 2017-2-11 10:04. Dear teachers, does a high-pressure natural gas pressure regulating unit (integrated skid, with a high pressure of 20 MPa) fall under the category of pressure pipelines or pressure pipeline components? Do design drawings need to be stamped with a design seal? Thank you!
The “component assembly devices” category in the new Catalog refers to devices that are formed by welding pressure pipeline components such as pipes, valves, fittings, and flanges together to achieve a specific function. Currently, manufacturing licenses are issued only for wellhead equipment, production trees, throttle and kill manifolds, as well as gas pressure regulating devices and temperature and pressure reducing devices.
Gas pressure regulators are standardly rated up to 4.0 MPa only; what should be done if the pressure is higher than 4.0 MPa? Everyone just sold it like that. . . .
Generally, apart from pipes, they are all pipe components; P