SURVIVAIR Opti-Fit
™
Convertible Facepiece
17
2. Quick Coupler Assembly (applicable to side-
mounted tube, front-mounted tube and P100 es-
cape configurations)
A male plug from one of the air line coupler kits
listed in the Parts List, Section VI, must be assem-
bled to the open end of the breathing tube. This
operation requires a torque wrench.
WARNING
Do not use pipe thread sealing tape
on the quick coupler or air line hose
threads. The tape could restrict air-
flow or tape fragments could enter the
air system. Failure to comply with this
warning may lead to personal injury, ill-
ness, or death.
The steps and considerations required for com-
pleting the Quick Coupler assembly are as follow:
1. Breathing Tube
a. Apply Loctite No. 567 PST pipe sealant
or equivalent to the ¼ NPT threads of the
male quick coupler plug. Ensure that no
sealant enters the quick coupler or air line
hose.
b. Thread the male plug into the female fit
-
ting on the breathing tube. Torque to 150
±5 in-lb.
WARNING
● The full facepiece is NIOSH approved
only when supplied with respirable
breathing air through no more than
three (3) lengths of 9308 Series hose,
or two (2) lengths of 9852 Series air
line hose at the pressures listed in
Tables I and II, located in Section VIII,
Part B.8. Do not mix hose types from
different columns.
● The third pressure column in Table
I should be used when using a low
pressure ambient air pump. No more
than two (2) lengths of 9852 Series
air line hose may be used. The air
supply must be coupled to the air
source and the breathing tube with
the OBAC couplers and plugs.
● FAILURE TO COMPLY WITH THIS
WARNING MAY LEAD TO PERSONAL
INJURY, ILLNESS, OR DEATH.
CAUTION
Do not exceed the maximum continuous
duty or maximum intermittent duty operat-
ing pressure of the low pressure ambient air
pump. Refer to your pump user manual.
NOTE
The Vortex air cooler is not approved for use
with the low pressure ambient air pump.
2. Air Supply Hose
Each length of hose is equipped with a ¼ inch
female NPT swivel nut at each end and a male
to male ¼ inch NPT adapter. The male to male
adapter may be used to connect two lengths of
hose or connect the hose to the air supply. Four
approved methods of connecting hose lengths
and air supply are illustrated in Figure 10.
Figure 10. Methods of Hose Connection
3. When assembling the quick disconnect fittings
of the coupler or the male to male adapters to
the hose, verify that the hose gaskets are in
place and torque to 90 ±5 in-lb. Thread sealant
is not required.
4. The air supply connection using the ¼ inch male
to male adapter illustrated in Method 2 is also
approved for use with Methods 3 and 4.
●
Method 1 is preferred when only one length
of hose is required since it allows the hose to
be disconnected from the air supply.
●
Method 3 is preferred when multiple lengths
of hose (maximum of three) are required,
eliminating the cost of quick disconnect cou-
plers at the hose junctions.
5. Pressurize and check for leaks with a bubble
type leak detector. If leaks are detected:
●
Disassemble and repeat steps 3 through 5.
● If the leaks persist, remove the hose from ser
-
vice and have repairs made by a SPERIAN
certified technician.
●
Disassemble and repeat steps 3 through 5.
●
If the leaks persist, remove the hose from ser-
vice and have repairs made by a SPERIAN
certified technician.
