Page 499 - 4300 Catalog Cover.pdf

4300 Catalog Appendix
V13 Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
Recommended Use of Porting Tools
Parker offers porting tools for machining precision ports (glands) conforming to DIN 3852-1, SAE J1926-1 (SAE straight thread
port) and the new world standard port, ISO 6149-1.
Machining ports to accept Parker tube fittings is completed in three simple steps.
To begin, select the appropriate size port tooling for the fitting end in question. Next, follow these machining steps.
2. Port Counterboring.
Then, run the counterbore tool into
the pilot diameter created in step 1.
All features and dimensions of the
port and O-ring cavity are built into the
counterboring tool except the depth.
The depth of the counterbore machin-
ing may vary from a light spotface, up
to the maximum spotface depth listed
on the port detail on pages A18 and
A19.
1. Pilot Hole Drilling.
First, make a pilot hole for the couter-
bore by using a drill or bore size found
in the couterbore tooling tables. Make
hole depth according to the port detail
on pages A18, A19 and A21. Parker
Tube Fittings Division does not sell tap
drills or bore tooling.
Fig. V1 — Pilot drilling
for counterbore tool
Fig. V2 —
Counterboring tool
Fig. V3 —Tapping
Counterbores and Taps
Note: It is necessary to create a spotface
surface which is flat and perpendicular
to the port, and with a smooth finish to
prevent leakage or O-ring extrusion. Cast
or forged surfaces must be spotface ma-
chined to meet these requirements. Even
on smooth surfaces (machined surfaces),
it is necessary to lightly touch the surfact
to assure a smooth radius at the entrance
of the port.
3. Thread Tapping.
Lastly, the machined port must be
threaded to accommodate the fitting.
Use theappropriateParker tapping tool
or another tap intended for the same
thread type, size, and class.