Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
C5
4300
Catalog
Ferulok
®
Flareless Bite Type Fittings
Dimensions and pressures for reference only, subject to change.
The Parker Advantage
Robust Port Stud:
The adjustable port stud is manufactured
with a longer locknut designed to cover the uppermost threads
completely. Since the backup washer is never exposed to the
upper threads, it cannot be damaged during assembly. Dur-
ing assembly, exposed upper threads, as common with fittings
from other fitting manufacturers, can lead to a deformed backup
washer that can pinch the o-ring and create an o-ring extrusion
gap that has the potential to leak. The longer locknut also pro-
vides a greater grip area for the wrench.
Visible bite:
The style A (SAE 08115A) ferrule design allows
for an easy inspection of the bite in the tubing. A verification
can quickly be achieved which reduces time and assures proper
assembly. This assurance also eliminates the risk of leaks and
catastrophic failures.
Rear compression grip:
The ferrule is also designed with a
rear bevel to firmly hold the nut and tubing. This enhancement
dampens the effects of vibration in the connection; thus extend-
ing the life of the joint.
Metal-to-metal sealing:
The metal to metal sealing function
broadens the range of both temperatures and media types.
The temperature and media range of Ferulok is not limited by
an elastomeric seal, but by the range of steel and stainless
steel (see page T9 of the General Technical section for material
temperature and media compatibility).
Superior Plating:
Superior plating gives Parker steel tube
fittings unmatched protection against red rust. In neutral salt
spray test per ASTM B117, Parker Ferulok fittings substantially
exceeded the SAE requirement of 96 hours to red rest.
No special tooling required:
Neither flaring nor flanging tools
are required to make a Ferulok connection. Smaller sizes of
Ferulok can be assembled by a wrench thus reducing tooling
costs and assembly time. However, portable presetting equip-
ment is available for larger sizes and/or high production (see
Section R of the catalog for equipment available).
Reference locations
Standard Material Specifications:
Refer to
Table U1
in
Ap-
pendix page U2.
Assembly and Installation:
Please refer to
Ferulok Assembly
located within th
e Assembly/Installation section o
f this catalog.
Recommended Tube Wall Thickness:
Please refer to
Table
U3
located in the
Appendix section.
Dynamic Pressure Ratings:
Please refer to the last column
of the part number tables located on the following pages of this
section for the appropriate dynamic pressure ratings.
Seal Material Selection:
Please refer t
oTableT8
in the
General
Technical section
of this catalog for elastomeric seal information.
Tube Recommendation
Maximum tube wall thickness is based on the pressure holding
capability of Ferulok fittings.Tubes above the recommended range
can be used. However, the pressure holding capability of the as-
sembly will be limited to the fitting capacity. The proper Ferulok
assembly procedures as outlined on pages
S23 - S26o
f this catalog
are critical to the performance of the fitting. Steel Ferulok works
best with seamless or welded and drawn fully annealed tube, SAE
J356, SAE J524, SAE J525 (max. hardness, RB72) or equivalent
specification steel tube. For stainless steel Ferulok fittings, types
304
and 316 of ASTM A269, ASTM A213 (max. hardness, RB90)
or equivalent stainless steel tube is recommended.
Ferulok fittings are also suitable for use with soft metal tube and
various types of plastic tubes such as nylon, polyethylene, etc.
When used with plastic tube, it is strongly recommended that a
tube insert, such as T23UI, be used to prevent tube pull out due
to tensile loading.
Se
eTable U3
i
n Appendix o
n
Page U3
. Consult the Parker Hannifin
Tube Fittings Division for other combinations of tube and tube fitting
materials not shown.
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