Pressure test with purge gas

For the pressure test of the High pressure panel BM50-1+2, inert (non-reactive) gas is used (connect to HPI). Ensure that the required pressure is present and there is a valve present for shutting off the purge gas (PGI).

If no process gas shut-off valve PLI is present in the outlet of the High pressure panel, the complete line network is tested to the consumer and then purged. This must be carried out via an exhaust gas valve on the consumer. To do this, refer to the system documentation for the consumer.

1. Close all valves.
2. Open valves PGI and HPI to build up pressure in the system.
3. Wait until the pressure has been built up and close the PGI valve.
4. Leave the pressure for 10 minutes.
5. After 10 minutes have elapsed, check that the pressure has remained constant.
6. If there is no change, release the High pressure panel via valve HPV and close all valves.

If the pressure has reduced, perform a leak test to check where the gas is escaping, repair the connection and repeat the pressure test. The line network can then be purged clear up to the consumer.