The reliability test of gear pump includes two kinds of test room and field, which can be tested according to specific conditions.

Full sample test --- the test is carried out until each commissioning pump reaches the service life.

Incomplete sample test:

1. The time truncation test: The test is carried out until the test time stipulated before the test, and the test is stopped at T*.

When the sample size is large, especially the laboratory test, the time truncated test scheme can be used.

2. Fixed number truncation test: The test shall be carried out before the test, and the failure number shall beR.

When the number of failures is limited by the user, the fixed number truncation test can be used.