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Simple instructions for the three-point operation test of the cartridge needle valve

Simple instructions for the three-point operation test of the cartridge needle valve

  • Categories:Industry News
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  • Time of issue:2022-08-03 08:47
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Simple instructions for the three-point operation test of the cartridge needle valve

(Summary description)Do you know how to operate the cartridge needle valve, below we look at the relevant instructions on the operation test of the cartridge needle valve.
1) For the test valve with a maximum allowable working pressure greater than 11 MPa at 20 degrees, the inlet pressure is maintained at the pressure specified in Table 2-8. For test valves with a maximum permissible working pressure of less than or equal to 11 MPa at 20 degrees, the inlet pressure is raised to the pressure specified in Tables 2-8.
2) Open the test cartridge needle valve to the full open position, and then close the globe valve 17, so that the pipeline and the test valve body cavity are connected. Record the maximum torque of the pneumatic ball valve required to operate the test valve.
3) The test cartridge needle valve is in the fully open position, and the external leakage of the test valve is detected and recorded under the pressure specified in Table 2-8, and the leakage detection duration is 5 minutes.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2022-08-03 08:47
  • Views:0
Information

Do you know how to operate the cartridge needle valve, below we look at the relevant instructions on the operation test of the cartridge needle valve.
1) For the test valve with a maximum allowable working pressure greater than 11 MPa at 20 degrees, the inlet pressure is maintained at the pressure specified in Table 2-8. For test valves with a maximum permissible working pressure of less than or equal to 11 MPa at 20 degrees, the inlet pressure is raised to the pressure specified in Tables 2-8.
2) Open the test cartridge needle valve to the full open position, and then close the globe valve 17, so that the pipeline and the test valve body cavity are connected. Record the maximum torque of the pneumatic ball valve required to operate the test valve.
3) The test cartridge needle valve is in the fully open position, and the external leakage of the test valve is detected and recorded under the pressure specified in Table 2-8, and the leakage detection duration is 5 minutes.

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