4300
Catalog
Appendix
U13
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
U7 a
nd
U8.
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
T32,
T33
and
T36.
Parker
Tube Fittings Division does not sell tap
drills or bore tooling.
Fig. U1 — Pilot drilling
for counterbore tool
Fig. U2 —
Counterboring tool
Fig. U3 —Tapping
Counterbores and Taps
Note:
It is necessary to create a spotface
surface which is flat and perpendicular to
theport, andwithasmoothfinish toprevent
leakageorO-ringextrusion.Cast or forged
surfaces must be spotface machined to
meet these requirements.Evenonsmooth
surfaces (machined surfaces), it is neces-
sary 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.