4300
Catalog
Assembly / Installation
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
S23
Ferulok Assembly
Ferulok fitting assembly consists of the following steps:
1)
Cutting, deburring and cleaning of the tube
2)
Ferrule pre-set
3)
Pre-set inspection
4)
Final installation
Step 1 (cutting, deburring and cleaning of the tube) has been
previously covered
(see page S12).
For the recommended minimum and maximum tube wall thick-
ness for Ferulok fittings, please refer to Table U3 on page U3.
Prior to pre-setting, determine the tube length allowance “A”
using Table S21.
*
No additional lubrication is required with stainless steel fittings as the nuts are
pre-lubricated.
Table S21 —Tube
length allowance
Fig. S33 —Tube length
allowance
Step 1 –
Lubricate thread
and cone of Ferulset Tool
(
or fitting body).
Step 2 –
Slip nut and ferrule
over deburred tube end. Be
sure the long, straight end of
the ferrule points toward tube
end.
Step 3 –
Lubricate ferrule with
system fluid or a compatible
lubricant.
Step 4 –
Bottom tube end
firmly on internal shoulder of
Ferulset Tool (or fitting body).
Step 5 –
Manually screw nut
onto Ferulset Tool or fitting
body until finger tight.
Step 6 –
Make reference
mark on nut and tube.
Step 7 –
Hold tube steady
against internal shoulder of
Ferulset Tool or fitting body
and tighten nut an additional
1-3/4
turns.
Step 8 –
Loosen nut and
check for proper pre-set.
Use the following inspection
criteria.
Ferrule Pre-set
Prior to final installation, the Ferulok fitting requires a pre-setting
operation that creates a bite by the ferrule into the outer surface
of the tubing. Pre-setting can be accomplished by two different
methods: hydraulically using a Hyferset Tool or a Hydra-Tool,
or manually using a hardened Ferulset tool or the fitting body.
When using the Hyferset or Hydra-Tool method, the pressure
build-up“bites”the ferrule into the tubing. Whenusing theFerulset
or fitting body, thread the connection to finger tight and wrench
an additional 1-3/4 turns. This will “bite” the ferrule into the tube.
Pre-setting using Ferulset Tool or Fitting Body
Ferulset pre-setting toolsmade fromhardenedsteel areavailable
for sizes 2 through 32
. (See page R36.)
They are recommended
over the fitting body because they can be used repeatedly to
perform the pre-set operation.The fitting body can be used only
once for pre-setting and should be used during final installation
with the pre-set tube line. The following steps are required for
proper pre-set of the ferrule using the Ferulset tool or fitting body.
Ferulok Assembly
Dimensions and pressures for reference only, subject to change.
Nominal
Tube
O.D.
A
1/8
0.19
3/16
0.23
1/4
0.23
5/16
0.25
3/8
0.25
1/2
0.31
5/8
0.35
3/4
0.35
7/8
0.35
1
0.42
1 1/4
0.42
1 1/2
0.49
2
0.49