Seeking help again: the basis for installing a pipeline pressure gauge and a root valve.
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Dear teachers: I asked once before whether a root valve is necessary for the pressure gauge installed on pressure pipelines Everyone says it’s necessary, but which standard or specification requires it? I would appreciate some guidance from the teachers.
The requirements for installing root valves on pressure pipelines are usually specified in relevant industrial pipeline design codes or safety regulations, such as the \"Regulations on the Safety Management of Pressure Pipelines\". Specifically, it is necessary to refer to the relevant industry standards or specifications. .
There are no clear regulations specifying this. It’s like in situations with large pressure changes, where silicone oil is filled inside the pressure gauge – this is often a requirement set by the manufacturer. Root valves are often included as part of the instruments supplied by the manufacturer
You must have a source; does this count? Must be added to the standard atlas
The standard was not found, but the pressure gauge on pressure pipelines needs to be calibrated annually; it cannot be removed without installing a root valve. Also, if the table fails, it cannot be replaced without shutting down operations.
Even if it doesn’t belong to the category of pressure pipelines, a valve should still be installed……
I don’t see a root valve for the pressure gauge in this atlas. 、
Take another close look at the diagram and compare it with the legend.
I’m not sure if it counts under the SH/T 3104-2000 standard
Go to the site for work, replace the pressure gauge twice and you’ll know. It still needs to be installed even in the absence of standards, as long as cost and space permit.