APTech Series AK M60 - Manual (Page 8)

AK M60 Manual P/N 00-15000012 Rev 1
Page 8 of 13
4.5. Purge and Vent Equipment
If required due to gas properties (such as for hazardous gases), install purge and vent valves to enable the
operator to remove hazardous gases from the lines using an inert purge gas before connecting and
disconnecting gas cylinders.
4.6. Initial Leak Test
Note: Depending on the application, the user may opt for skipping the initial leak test and connect the
process gas cylinders. A leak test should be performed as described in 5.1.2 as part of the initial
pressurization.
Connect a nitrogen (or other appropriate inert gas) cylinder with a pressure regulator to the pigtail lines
connected to the AK M60 manifold Source A and Source B inlet ports using appropriate adapter fittings.
Regulate the pressure to less than the manifold maximum inlet pressure and no more than 90% of the inlet
gauge maximum range.
Pressurize the manifold with nitrogen and then isolate the supply gas cylinder.
Check all lines for leaks by listening for audible leakage and applying soap solution to NPT connections.
Monitor the pressure gauges on the AK M60 manifold for a pressure drop that would indicate a leak.
If any leaks are found, then disassemble, repair, and retest.
Disconnect the nitrogen cylinder.