Installation Instructions
17
4.2 Fitting Assembly
ASSEMBLY PROCEDURES FOR PRO-FLEX
®
CSST
1
STEP #1
Cut-to-Length
Using a standard tube cutter, cut tubing to the desired length leaving approximately one inch for fitting
attachment. Clean up any jagged edges burrs.
STEP #2
Strip Yellow Jacket
Using a utility knife, strip yellow jacket back 5-6 convolutions from the tubing end. Note: Do not use
tube cutter to make yellow jacket cut, use utility knife.
STEP #3
Assembly of Mechanical Fitting
Slide nut over CSST tubing with threaded end pointing out.
STEP #4
Placement of Retainer Ring
By hand, open ring wide enough to fit in the valley behind the fourth (4th) convolution and hand
squeeze ring to close and fit snug. Do not break the retainer ring in half.
STEP #5
Placement of Stainless Steel Slider Ring
Place Slider Ringer over the tube end and roll/slide it down to the retainer ring.
STEP #6
Placement of Silicone O-Ring
Roll Silicone O-Ring over tube end and roll/slide it down to meet the slider ring.
STEP #7
Make sure High-Temperature Sealing Gasket is in base of Fitting
Doub
le check to make sure High-Temperature Sealing Gasket is in base of Fitting and hand-tighten
down fitting to nut. NOTE: Before tightening down, check to make sure Retainer Ring, Slider Ring, and
Silicone O-Ring are in the proper sequence
.
After hand tightening fitting to n
ut, giv
e it one additional
1/4 to 1/2 turn with a crescent wrench. During tightening rotate the nut only, the body should not rotate
with respect to the tubing.
ASSEMBLED
VIEW
(Patented System #5,845,946,
#5,857,716, #6,102,445)
2
3
4
5
6
7
1.
P
oly
eth
ylene
Y
ellow Jacketing
2. Stainless 304 Corrugated Tubing
3. Mechanicl Nut
4.
Mechanical Fitting
5. Silicone O-Ring
6. Stainless Steel Washer
7.
Stainless Steel Retainer
8. High Temperature Sealing Gasket