| Specification |
BS 5315 / 1976 and IS 4762 / 1984 |
| Material |
The material used in manufacture of WORM DRIVE HOSE CLIPS shall be
selected at the manufacturer's discretion, provided that the finished
clamps are capable of passing the tests specified.
|
| Manufacture |
-
⊚ Screw: Shall be held captive in the clamp
housing.
-
⊚ Band: Band shall have a thread form
commencing at the
free end and extending for a length sufficient to enable the
clamp to
be tightened on the smallest diameter of component within the
working
range for which it is designated.
-
⊚ Housing: The housing shall not be readily
removable
from the band.
|
| Finish |
Clamp shall be smooth and free from burrs and sharp edges.
Clamps produced other than from corrosion-resistant materials
(stainless steel) shall be protected by an electroplated coating of zinc
as per Fe Zn12 of IS:1573/1970 & BS:1706-Zn3.
|
| Dimensions |
| Size (mm) |
Y Max |
Z Max |
| 12 – 20 |
14 mm |
25 mm |
| 22 – 25 |
20 mm |
25 mm |
| 28 – 40 |
25 mm |
30 mm |
| 45 & above |
28 mm |
33 mm |
|
| Tests |
-
⊚ Free Running Torque Test: The torque
required shall not
exceed 1.5 Nm (13.3 ibf/in or 0.16 kgf/m).
-
⊚ Torque Test: Clamp shall be tightened to
75% of the
torque load. On release, it shall show no permanent distortion
of the
housing or band. Clamp shall be re-tightened until permanent
distortion
or failure occurs; torque load at failure shall exceed the
specified
value.
-
⊚ Hydraulic Pressure Test: Test fluid shall
be water at
room temperature. Torque applied shall not exceed 75% of the
value.
Pressure shall be increased gradually until leakage or failure
occurs,
and the pressure shall not be less than the specified value.
|