GB/T 26961-2011Hydraulic pressure test method of graphite lined equipment (English PDF)

3.1

selected to meet the measured pressure range of electric or manual pressure test pump.

3.2

pressure test before fastening bolts impervious graphite equipment connected to the respective parts of the assembly should be complete, properly fastened.

3.3

hydrostatic test must use the same two ranges and qualified by the test gauge, the pressure gauge accuracy should not be less than 1.6, the pressure

Gauge dial range should be 2 times the test pressure and should not be less than 1.5 times the test pressure and not more than 3 times. Direct dial gauge

Diameter not less than 100mm. Pressure gauge should be installed in a safe, a prominent position at the top of the device, to facilitate the testing personnel observed.

3.4

Water pressure resistance test site should be reliable security facilities, and tested technical unit responsible for the management and security checks

Recognition.

3.5

pressure test equipment impervious graphite top vent should be located, it should be filled with water to release the air impervious graphite equipment within impermeable

Graphite outer surface of the device should be kept dry.

3.6

using clean water as a test liquid, the water temperature can not be less than 5 °C.

3.7

During the test, when impervious graphite equipment near the wall temperature and the water temperature can slow step.

3.8

should not be used during the dwell continuous pressure to maintain constant pressure test, pressure test process can not be under pressure to force or the fastening bolt

Applying an external force member.

3.9

pressure test process can not be carried out with the test has nothing to do work unrelated persons can not stay at the test site.

3.10

impervious graphite equipment when the hydrostatic test, impervious graphite equipment belonging to non-metallic pressure vessel, the supervisory inspector should enter the scene

Bank supervision and inspection.

4.1

Sample impervious graphite equipment must meet the requirements of TSGR0001.

4.2

hydrostatic test is always checked each impervious graphite equipment before leaving the factory, each device that is impermeable graphite sample is not required

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