Honeywell HON 5020 User And Maintenance Manual page 38

Test configuration
Checking the system for
leaks
HON 5020 gas pressure regulator with HON 630 pilot
The test setup is as follows (schematic diagram, using the two-stage HON 630 pilot with a
diaphragm assembly as a reference):
The numbers have the following meaning:
No. Meaning
1 Inlet chamber
2 Outlet chamber
Inlet stop valve armature
3
Gas pressure regulator
4
Outlet stop valve armature
5
Proceed as follows:
Step Description
1 Slowly close the outlet stop valve armature.
2 Apply the test medium to all detachable pipe joints.
3 Observe the test medium on all detachable pipe joints for several minutes.
If ...
no foam or bubbles are formed
foam or bubbles are formed
Step Description
4 Slowly close the inlet stop valve armature.
5 Depressurize the inlet chamber and the outlet chamber.
6 Seal the leaking pipe joints.
7 Repeat the leak test starting with step 1.
Transport and installation
then ...
 the system is leak-proof.
 the system may be put into operation.
 the affected pipe joint is leaking.
 the system may not be put into operation.
 Proceed with step 4.
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