4300
Catalog
Assembly / Installation
Parker Hannifin Corporation
Tube Fittings Division
Columbus, Ohio
http://www.parker.com/tfd
S18
Table S14 – Seal-Lok and UPTC assembly torque and F.F.W.R. For brass, aluminum
(
and other soft metals) decrease torque value by 35%, however F.F.W.R. is the same.
2.
Place the tubeassembly against the fittingbody so that the flat
face of the flange tube (or braze sleeve) comes in full contact
with the O-ring. Thread the nut onto the fitting body by hand
and tighten it to the recommended torque represented in
Table S14. If torque wrenches are not available, an alternate
method of assembly is the Flats From Wrench Resistance
(
F.F.W.R.) method. Wrench tighten the nut onto the fitting
body until light wrench resistance is reached.Tighten further
to the appropriate F.F.W.R. value.
Note:
A second wrench may be required to prevent the
fitting from moving during assembly.
Caution: The torque method of assembly is the preferred
method of assembly for Seal-Lok fittings. It reduces the
risk of human error during assembly that is more prevalent
in the Flats FromWrench Resistance (F.F.W.R.) method.To
ensure themost accurate assemblyof theSeal-Lokfitting,it
isstrongly recommended that the torquemethodbeutilized.
Seal-Lok Assembly
O.D.
SAE
Dash
Size
Tube Side
Thread
Size
(
UN/UNF)
Tube Side
Assembly Torque
(
+10% -0%)
Flats from
Wrench Resistance
(
F.F.W.R.)
(
in.)
(
mm)
in.-lb. ft.-lb. N-m
Tube
Nuts
Swivel &
Hose Ends
1/4
6
-4
9/16-18 220 18 25 1/4
to 1/2 1/2 to 3/4
3/8 8, 10
-6 11/16-16 360 30 40 1/4
to 1/2 1/2 to 3/4
1/2
12
-8 13/16-16 480 40 55 1/4
to 1/2 1/2 to 3/4
5/8 14, 15, 16 -10
1-14
— 60 80 1/4
to 1/2 1/2 to 3/4
3/4 18, 20 -12 1 3/16-12 — 85 115 1/4
to 1/2 1/3 to 1/2
1
22, 25 -16 1 7/16-12 — 110 150 1/4
to 1/2 1/3 to 1/2
1 1/4 28, 30, 32 -20 1 11/16-12 — 150 205 1/4
to 1/2 1/3 to 1/2
1 1/2 35, 38 -24
2-12
— 230 315 1/4
to 1/2 1/3 to 1/2
2
50
-32 2 1/2-12 — 375 510 1/4
to 1/2 1/3 to 1/2
Dimensions and pressures for reference only, subject to change.