DRESSTA 560C - Torque Values for Hose Clamps; Torque Values for Hydraulic Tubes and Fittings

SPECIFICATIONS SECTION 6
Page 23
DRESSTA OM560C99/1E
6.13. TORQUE VALUES FOR HYDRAULIC TUBES AND FITTINGS
Chart 4
Size
Tubing
O.D.
in inches
Thread size
in inches
Torque values for 37°°
flared fittings, Nm
Torque values for O-ring
boss plugs, locknuts and
37°° flared fittings, Nm
4 1/4 7/16 – 20 12 – 16 8 – 14
5 5/16 1/ 2 – 20 16 – 20 14 – 20
6 3/8 9/16 – 18 29 – 33 20 – 27
8 1/2 3/ 4 – 16 47 – 54 34 – 41
10 5/8 7/8 – 14 72 – 79 47 – 54
12 3/4 1 – 1/16 – 12 104 – 111 81 – 95
14 7/8 1 – 3/16 – 12 122 - 138 95 – 109
16 1 1 – 5/16 – 12 149 – 163 108 – 122
20 1- 1/4 1 – 5/8 – 12 190 – 204 129 – 156
24 1- 1/2 2 – 1/2 – 12 217 – 237 163 – 190
32 2 2 – 1/2 – 12 305 – 325 339 – 407
Above torque figures are recommended for plain, cadmium or zinc plated fittings, dry or wet
installations.
These torques are not recommended for tube with wall thickness of 0.89 mm or less.
6.14. TORQUE VALUES FOR HOSE CLAMPS
The following chart 5 provides the tightening torques for hose clamps used in all rubber
applications: radiator, air cleaner, operating lever boots, hydraulic system, etc.).
Chart 5
TORQUE ±± 0.6 Nm
CLAMP TYPE AND SIZE
Radiator, Air Cleaner,
Boots, etc, Nm
Hydraulic System,
Nm
"T" Bolt (any diameter)
6.2 ÷7.3
Worm Drive - 1-3/4 in.
Open Diameter & Under
2.2÷ 3.3 4.5 ÷5.6
Worm Drive - Over 1-3/4 in. Open Diameter
4.5 ÷5.6
Worm Drive - Al1 "Ultra-tite"
10.7 ÷11.8 4.5 ÷5.6