
Parker Hannifin Corporation
Parflex Division
Ravenna, Ohio
Bulletin No. 4660-PGP2T
1
Parflex
®
Flexible Gas Piping System
Design and Installation Guide
Assembly of Parflex FastMate Fitting and Parflex Tubing
4.2.2
Straight Fitting Assembly
1. Male pipe thread fittings
—First install the complete fitting
to the port.
Do not apply a wrench to the nut.
(The fitting and
nut assembly come pre-set from the factory. It is not neces-
sary to remove the nut, pull tab, or to turn the nut until the
tube has been inserted.)
Use a wrench on only the body hex near the pipe threads
to install the fitting into the port.
2. Align the tubing with the fitting and insert the tube into
the fitting nut and through the fitting collet.
3. Push the tube forward with a slight rocking motion until
bottomed (One corrugation). A click or ratchet sound should
be heard as the tube corrugation passes through the collet.
With a slight twist, pull off the spacer. Keeping the tubing
alignment straight, tighten the nut by hand before applying
wrenches. The nut should turn at least two full revolutions
(720 Degrees) before using wrenches. Complete tightening
with a wrench until nut is very tight.
4.2 Fitting Assembly -
Continued
Push Tube into Fitting
Fitting Nut
Body Hex
4.2.4
Flange Fitting Assembly
1. Flange mount fittings
—
Slide the Parflex tubing through the flat side of the flange. Assemble the tube
to the fitting flange\ nut and body as described above for the straight fitting assembly.
2. While holding the flange nut of the fitting with a wrench, screw the flange snug onto the nut. Align the
flange to the flange mount bracket and bolt. If the flange requires turning to center the holes, hold the
flange nut with a wrench and turn the flange.
Do not twist the assembly. Damage could occur to the
tube.
Section 4.0 Installation Practices
Recommended Tightening Specifications
Pipe
Part
Number
Straight Fitting
Part Number
Pipe
Nom ID
New
Fitting
Gap
Remake
Gap
PGP - 6
PGP - 8
PGP - 12
PGP - 16
PGP - 20
PGP - 32
2SFM-8-6B
2SFM-8-8B
2SFM-12-12B
2SFM-16-16B
2SFM-20-20B
2SFM-32-32B
3/8"
1/2"
3/4"
1"
1 - 1/4"
2"
0.150"
0.115"
0.095"
0.075"
0.075"
0.035"
0.130"
0.110"
0.085"
0.070"
0.070"
0.030"
GAP