Mallinckrodt INOMAX DSir Plus, Operation Manual

Page: 127 / 206

Part No. 20717 Rev-01
2014-07
4-19
Cylinder Leak Check
If a leak is suspected during the high pressure leak test, the following steps can be taken to check for leaks
(see Figure 4-16 for possible cylinder gas leak locations) in the INOMAX regulator or INOMAX cylinder.
Figure 4-16
1. Cylinder Valve Regulator Connection
2. INOMAX Regulator Hand Wheel Connection
3. Regulator End Cap Connection
4. Tamper Evident Tape
5. Valve Nut
6. Safety Pressure Release Device
1. Check the INOMAX drug cylinders for the correct
product identity, cylinder concentration, and
expiration date. Verify cylinder has at least 500
psig (replace if 200 psig or less), and tighten the
fitting to the INOMAX cylinder.
2. Apply soapy water to points #1, #2, #3, #5 and
#6 (see Figure 4-16); if bubbles form, there is a
leak.
3. If there are no bubbles, the leak may be inside
the INOmax DS
IR
and cannot be repaired.
Replace the INOmax DS
IR
and contact Technical
Support.
Recommended actions should a leak be detected:
1. A leak detected at points #1 and #2 may be
corrected by tightening the INOMAX regulator
hand wheel.
a. If cylinder valve is open, close cylinder valve,
relieve regulator pressure by purging, tighten
INOMAX regulator hand wheel.
b. Open cylinder valve and reapply soapy water
to points #1 and #2.
c. If bubbles form, there is a leak.
d. Remove INOMAX regulator and check white
plastic tip on INOMAX regulator for chips or
cracks. Replace if necessary (see page 7-8).
Repeat step b (note: If leak remains, replace
INOMAX regulator).
2. If a leak is detected between the regulator body
and regulator end cap (see point #3) replace
INOMAX regulator and contact Technical
Support.
3. A leak detected at the cylinder valve nut
connection (see point #5) may not be repaired.
Replace INOMAX cylinder and contact Technical
Support.
4. A leak detected at the safety pressure release
device (see point #6) may not be repaired.
Replace INOMAX cylinder and contact Technical
Support.
6
5
1
2
3
4
Note: Refer to hospital policies and procedures
for dealing with leaking gas cylinders.
Additional information regarding
environmental effects can be found in
the section 1/ General Information.