Regarding the selection of pressure gauge range
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In GB/T150, during the hydraulic pressure test, the pressure gauge is selected as shown in the figure: In TSG21-2016, during the water pressure test, the pressure gauge is as shown in the figure:
I personally don’t understand it. I feel that the requirements for the pressure gauge are different. Could you please explain it to Haiyou? Thank you!
I don’t understand it personally. I hope Haiyou can explain it. Thank you.
GB150 is a little more demanding, so just follow the higher requirements.
150 Regardless of your design pressure, you agree to set the accuracy of the pressure gauge at 1.6, and the capacity gauge is looser for low-pressure vessels. If it is less than 1.6MPa, you can use the accuracy of 2.5.
It only needs to be implemented in accordance with the standards. The pressure gauge range must meet the specifications and it must be a qualified measuring instrument.
It only needs to be implemented in accordance with the standards. The pressure gauge range must meet the specifications and it must be a qualified measuring instrument.
The pressure gauge range required in GB/T150 is 1.5 to 3 times the test pressure, which is twice the test pressure. The limit value of the pressure dial scale on the capacity gauge is 1.5 to 3.0 times the working pressure. How do you understand this place?
The pressure gauge range required in GB/T150 is 1.5 to 3 times the test pressure, which is twice the test pressure. The limit value of the pressure dial scale on the capacity gauge is 1.5 to 3.0 times the working pressure. How do you understand this place?
Generally speaking, the test pressure is not less than the working pressure. To put it bluntly, GB requirements are higher.
GB150 has stricter requirements for accuracy levels and puts forward specific requirements for dial diameter.