Pneufit push-in fittings

Fittings
Pneufit push-in fittings
Metric
Ø 4 to 14 mm O/D tube
Compact units featuring
retained collets and positive
tube anchorage.
Silicone free 'O'-ring seals.
Non-PTFE based thread sealant
on all BSP taper threads.
Easy tube insertion for rapid
assembly.
Internal hexagon on straight
adaptors allows assembly in
confined spaces.
Wide range of types available.
Reliable and corrosion
resistant.
Specifications
Fluid: Compressed air, nitrogen,
inert and
non-combustible gases
compatible with materials of
construction. For other types of
fluids or compressed gases,
please consult factory.
Working Pressure: 750 mm Hg to
18 bar
(29.5" Hg vacuum to 260 psig)
Note: Flow Controls working
pressures:
.3 to 10 bar (5 to 150 psig)
Working Temperature: -20° to
80°C (0° to 175°F)
Request viton® option on
selected part numbers for
extended temperature range : -
20° to 180°C (0° to 350°F)
Materials of
Construction
Body, swivel fitting and collet:
Nickel plated brass
O-ring: Silicone free Nitrile
Sealing washer (parallel male
threads): Silicon free nitrile
Tubing: Nylon 11 or Nylon 12,
Polyurethane (95 durometer or
above) and LDPE (Low Density
Polyethylene).
Note: Lower durometer
polyurethane may be used,
however, an internal tube support
is required to prevent internal
collapse of the tube wall.
Thread Sealant: Precote 5 thread
sealant is factory applied to the
circumference of tapered male
threads (ISO R).
FIT-18
V
A
ØS
Dimensions mm (in.)
T
A
T
O.D. Tube S Tubing Stop V
4 (5/32") 2.8 (.11) 14.0 (.55) 7.5 (.30)
5 3.4 (.13) 15.0 (.59) 10.0 (.39)
6 4.4 (.17) 15.5 (.61) 11.0 (.43)
8 (5/16") 6.0 (.24) 16.5 (.65) 13.0 (.51)
10 7.6 (.30) 21.0 (.83) 14.5 (.57)
12 9.6 (.38) 24.5 (.96) 18.0 (.71)
14 11.5 (.45) 24.5 (.96) 20.0 (.79)
Tube stop
O-ring
Internal hexagon
Body
Thread sealant
Collet
Recommended tightening torques
Thread Tightening Torque Nm (ft lbs)
Size ISO R ISO G*
M5 — 1 - 1.4 (.75 - 1.05)
1/8 6.9 - 8.8 (5.0 - 6.5) 7 - 9 (5.3 - 6.8)
1/4 11.8 - 13.7 (8.7 - 10.0) 9 - 12 (6.8 - 9.0)
3/8 21.6 - 23.5 (15.9 - 17.3) 34 - 38 (25.5 - 28.5)
1/2 27.4 - 29.4 (20.2 - 21.7) 41 - 47 (30.8 - 35.3)
*Lower torques can be used to achieve a seal but these figures are
recommended to provide some vibration resistance.
Tube O.D.'s and Tube Tolerances
O.D. Tube Tolerances
Tube O.D. Nylon Polyurethane
4 mm to 5 mm +0.05 mm (+0.002")
(5/32" to 3/16") -0.07 mm (-0.003")
6 mm to 14 mm +0.05 mm (+0.002")
±0.10 mm
(±0.004")
(1/4" to 1/2") -0.10 mm (-0.004")
LDPE –Tolerances specified in DIN 73378 or BS54-09/1:1976
www.norgren.com/info/US-FIT-18