Dungs FRM 100025 HD, Instruction Manual, Page: 134 / 174

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Edition 10.15 • No
. 270 442
12. Commissioning and decommissioning
12.2 Leakage test
Prior to commissioning
• The performance data on the type plate correspond to the ordering data.
• Prevent explosive gas-air mixture: the room atmosphere must constantly be monitored through
gas concentration measuring devices for the detection of gas leakages.
• Only operate the device if all safety devices are fully functional.
• Only qualified personnel is allowed to carry out the commissioning.
12.1 General information
Lekspray
pmax = 10 bar
1
2
Before commissioning the device, a test for
internal and external leakages must be carried out.
1. Test gases of the leakage test: air or inert gases.
2. Upstream and downstream shutoff valves must be closed.
3. Release the test section. Check the presence of gas and
safely release it in the atmosphere.
4. Test pressure > blow-off pressure SBV: block the line
upstream of the SBV.
5. Connect the test section to the test device and apply pres -
sure.
6. Test pressure: 1.1 x system-specific operating pressure
Maximum PS of the device. Different pressure ratings of
the system must be taken into account.
7. Observe the waiting time necessary for the pressure com -
pensation according to the system-specific volumes.
External leakage
8. Use a suitable leak detection spray on the device.
9. Monitor the foam formation.
Internal tightness
10. Release the pressure in the test section downstream of
the device.
11. Monitor the increase in pressure on the outlet side: pres -
sure gauge accuracy 0.1 mbar
12. Once the leakage test has been carried out, open the
shutoff valve upstream of the SBV.
13. Release pressure in the test section.