4300
Catalog
Assembly / Installation
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
S35
Fig. S52
Bulkhead Locknut Assembly
A bulkhead fitting allows one to connect tube or hose through a
panel.This panel, often referred to as bulkhead, may be a struc-
tural element of the equipment, or an additional plate which is
joined to the equipment, to facilitate convenient routing of hose
and tube. Bulkhead fittings are also used as a transition point
in a hydraulic system, such as connection of tube lines to hose
lines or to a quick disconnect coupling.
The following steps are recommended for the proper assembly
of the locknut for Triple-Lok, Ferulok and Seal-Lok bulkhead
fittings.
1.
Drill a pilot hole to dimension W + 0.015” (where W is
shown in Tables S26 and S27).
2.
Insert the bulkhead end of the fitting (without the locknut
assembled) through the bulkhead opening and attach the
locknut to the bulkhead end.
3.
Finger tighten the locknut and wrench tighten further to
the recommended torque shown in Table S28 for Seal-Lok
fittings or
Table S29
for Triple-Lok and Ferulok fittings.
*
Recommended clearance hole is W + 0.015”
Table S26 – Torque for Seal-Lok Bulkhead Fittings
*
Recommended clearance hole is W + 0.015”
Table S27 – Torque for Triple-Lok and Ferulok Bulkhead Fittings
Triple-Lok
Straight Bulkhead
Seal-Lok
Bulkhead Assembly
Ferulok
Straight Bulkhead
Bulkhead Locknut Assembly
TUBE
FITTING
PART #
THREAD
SIZE
UN/UNF
W*
ASSEMBLY TORQUE
+10%
- 0
in.-lb. ft.-lb.
N-m
4
WLNL
9/16-18 0.56 180 15 20
6
WLNL
11/16-16 0.69 300 25 34
8
WLNL
13/16-16 0.81 — 55 75
10
WLNL
1-14 1.00 — 85 115
12
WLNL
1 3/16-12 1.19 — 135 180
14
WLNL
1 5/16-12 1.31 — 170 230
16
WLNL
1 7/16-12 1.44 — 200 270
20
WLNL
1 11/16-12 1.69 — 245 330
24
WLNL
2-12 2.00
270 365
TUBE
FITTING
PART #
THREAD
SIZE
UN/UNF
W*
ASSEMBLY
TORQUE
(
+10 - 0)
in.-lb.
ft-lb N-m
3
WLN
3/8-24 0.38 100 — 11
4
WLN
7/16-20 0.44 155 13 18
5
WLN
1/2-18 0.50 250 20 28
6
WLN
9/16-18 0.56 300 25 35
8
WLN
3/4-16 0.75 600 50 65
10
WLN
7/8-14 0.88
85 115
12
WLN
1 1/16-12 1.06
135 180
14
WLN
1 3/16-12 1.19
170 230
16
WLN
1 5/16-12 1.31
200 270
20
WLN
1 5/8-12 1.63
245 330
24
WLN
1 7/8-12 1.88
270 365
32
WLN
2 1/2-12 2.50
310 420
Pipe Swivel Assembly (NPSM)
Unlike traditional pipe thread, these connections seal on the
nose of the swivel end. The nose has a 60° inclusive angle
that mates against a chamfer of the same angle on the male
pipe thread end (also known as a 30° chamfer).
Fig. S52
-
Illustration
showing how swivel
adapters seal on mating
chamfer in male pipe
thread end.
NPSM Pipe Swivels
NPSM Pipe swivels, also known as Parker 07 Adapters, must
connect withamaleNPT/NPTFpipe threadwitha30°machined
seat per SAE J514.
NPSM
Size
in.
Steel Assembly
TORQUE (+10% - 0% )
F.F.F.T.
in.-lb.
ft.-lb.
1/8
106
9 1.0 - 1.5
1/4
156
13 1.0 - 1.5
3/8
192
16 1.0 - 1.5
1/2
396
33 1.0 - 1.5
3/4
580
48 2.0 - 2.5
1
1140
95 2.0 - 2.5
1 1/4
1420
118 2.0 - 2.5
1 1/2
2840
237 2.0 - 2.5
2
3720
310 2.0 - 2.5
Table S28 – NPSM Pipe Swivel Torques
Dimensions and pressures for reference only, subject to change.
See page A8 f
or
maximum bulkhead
thickness.
See page B8
for
maximum bulkhead
thickness.
See page C6
for
maximum bulkhead
thickness.
Steps:
1.
Finger tight
2.
Wrench tighten to
torque specs in
Table (S28)