Reactor Inlet Valve Leak Check - GE Sievers InnovOx Operation And Maintenance Manual

Chapter 9: Troubleshooting

Reactor Inlet Valve Leak Check

This test checks for leaks in the same area as the Gas Manifold Leak Check, and it also checks for leaks in the
fittings on valve V4-R. These areas are highlighted in Figure 71.
• Press the Reactor Inlet Valve button to start the test.
• The following valves are closed: V1-R, V3-R, V4-R, V5-R, V6-R, V7-R, and V7-SH.
• Valve V2-R is open.
• The Gas Control Module pressurizes the lines using the optional air pump P1-GS or the pressurized gas
source for 10 sec., then valve V2-GS closes to trap that pressure in the area being tested. During this
10-sec. pressurization period, the timer remains at 00:00.
• Monitor the pressure appearing on the right side of the display. Note the pressure at time = 00:00, then
note the pressure 30 sec. later (time = 00:30).
• Press the Reactor Inlet Valve button to stop the test.
• The pressure should not have dropped more than 3 psia. If the pressure did drop more than that
amount, but it passed the previous leak check, then check the connections on V4-R. Check the
connections between V4-R and V2-R, V3-R and V6-R. If all of those connections are correct, then the
seal in V4-R may need to be replaced due to leaking O-rings.
• Remove the plug on the NDIR end cap outlet gas line if this is the last leak test to be performed.
Otherwise, leave the plug in place and proceed to the next leak test.
GE Analytical Instruments ©2013 198 of 238 DLM 68100-06 EN Rev. A