NORMACLAMP® - Hose Clamps
NORMACLAMP® COBRA -
The low profile of NORMACLAMP® COBRA one-piece clips
One-piece hose clips
allows the exact fitting even in very narrow assembly conditions.
The fitting is fast and easy.
Short description of technical features
6
1
4
4
2
5
3
7
1
Self-adjusting diameter = compensation for tolerances in
4
Protruding tool gripping points
the hose outside diameter
= simple and safe assembly
2
Bead = safe guidance of the band
5
Marking: Production date and machine number
3
Colour code = different nominal diameters can be quickly
6
Single lock-in point
distinguished
= visual check for correct assembly without difficulties
7
Clamp band with rounded edges = hose protection
Materials
W1*
W2
W3
W4
W5
x
* No chromium VI used for surface treatment
43
NORMACLAMP® - Hose Clamps
Corrosion resistance
Material
Corrosion resistance in salt spray testing
W4
Min.
240 h
The advantages at a glance
• One-piece hose clip
• Fast and easy fitting
• Maintenance-free fit
44
NORMACLAMP® - Hose Clamps
NORMA®-Professional Assembly Tools
For professional assembly work we offer you the following
range of tools:
NORMACLAMP® COBRA
hand-held pliers
The hand-held pliers allow accurate assembly and disassembly
operations. The tips of the pliers precisely fit the gripping points
on the clamp. The integrated spring
element keeps
the
pliers
open, thus permitting comfortable and fast working.
NORMACLAMP® COBRA
pneumatic pliers
The pneumatic pliers, available in a 0° version (Fig. 1), an exten-
ded 0° version (Fig. 2) and a 90° version (not shown), are the
ideal tools for industrial use. Assembly operations in large volu-
me production are no problem with these pliers.
1
2
45
NORMACLAMP® - Hose Clamps
Workshop assortment
The workshop assortment contains a customised variety of
NORMACLAMP® COBRA hose clamps arranged in a plastic
display box.
One box contains 500 NORMACLAMP® COBRA made from
stainless chrome nickel steel in 7 mm and 8 mm band widths
and sorted in different
quantities as follows:
30 x COBRA 7.5/7
25 x COBRA 8/7
25 x COBRA 8.5/7
25 x COBRA 9/7
25 x COBRA 9.5/7
25 x COBRA 10/7
25 x COBRA 10.5/7
25 x COBRA 11/7
25 x COBRA 11.5/7
25 x COBRA 12/8
30 x COBRA 13/8
30 x COBRA 14/8
30 x COBRA 15/8
30 x COBRA 16/8
30 x COBRA 17/8
30 x COBRA 18/8
30 x COBRA 19/8
30 x COBRA 21/8
Applications
• Suction lines
• Fuel ventilation lines
• Hoses for washing machines
• Irrigation systems
• Pneumatic tube systems
46
NORMACLAMP® - Hose Clamps
Survey of sizes, band widths & materials
NORMACLAMP® COBRA
Band
Description
Clamping Range Da
Packaging
width
Nominal diameter d1
(hose outside-ø)
PU
W4
Colour
(mm)
in mm
in Inches
Code
7
COBRA 7.5/7 W4
8.0-9.0
5/16-3/8
100
X
White
7
COBRA 8/7 W4
8.5-9.5
5/16-3/8
100
X
Yellow
7
COBRA 8.5/7 W4
9.0-10.0
3/8-3/8
100
X
Green
7
COBRA
9/7 W4
9.5-10.5
3/8-3/8
100
X
Purple
7
COBRA 9.5/7 W4
10.0-11.0
3/8-7/16
100
X
Black
7
COBRA 10/7 W4
10.5-11.5
3/8-7/16
100
X
White
7
COBRA 10.5/7 W4
11.0-12.0
7/16-1/2
100
X
Yellow
7
COBRA 11/7 W4
11.5-12.5
7/16-1/2
100
X
Green
7
COBRA 11.5/7 W4
12.0-13.0
1/2-1/2
100
X
Purple
8
COBRA 11.5/8 W4
12.0-13.5
1/2-1/2
100
X
Purple
8
COBRA 12/8 W4
12.5-14.0
1/2-9/16
100
X
Black
8
COBRA 13/8 W4
13.5-15.0
1/2-5/8
100
X
Yellow
8
COBRA 14/8 W4
14.5-16.0
9/16-5/8
100
X
Purple
8
COBRA 15/8 W4
15.5-17.0
5/8-11/16
100
X
White
8
COBRA 16/8 W4
16.5-18.0
5/8-3/4
100
X
Green
8
COBRA 17/8 W4
17.5-19.0
11/16-3/4
100
X
Black
8
COBRA 18/8 W4
18.5-20.0
3/4-13/16
100
X
Yellow
8
COBRA 19/8 W4
19.5-21.0
3/4-13/16
100
X
Purple
8
COBRA 20/8 W4
20.5-22.0
13/16-7/8
100
X
White
8
COBRA 21/8 W4
21.5-23.0
13/16-7/8
100
X
Green
8
COBRA 22/8 W4
22.5-24.0
7/8-15/16
100
X
Black
8
COBRA 23/8 W4
23.5-25.0
7/8-1
100
X
Yellow
8
COBRA 24/8 W4
24.5-26.0
15/16-1 1/16
100
X
Purple
8
COBRA 25/8 W4
25.5-27.0
1-1 1/16
100
X
White
8
COBRA 26/8 W4
26.5-28.0
1 1/16-1 1/8
100
X
Green
8
COBRA 27/8 W4
27.5-29.0
1 1/16-1 1/8
100
X
Black
8
COBRA 28/8 W4
28.5-30.0
1 1/8-1 3/16
100
X
Yellow
8
COBRA 29/8 W4
29.5-31.0
1 1/8-1 1/4
100
X
Purple
8
COBRA 30/8 W4
30.5-32.0
1 3/16-1 1/4
100
X
White
Larger diameters will be supplied on request in band width 9 mm.
PU = packaging unit
Enquiries/ordering:
When making enquiries or placing orders please indicate as follows:
1. Type
2. Nominal-
3. Band width
4. Material
diameter
Example
COBRA
7,5/
7
W4
47
NORMACLAMP® - Hose Clamps
Colour Coding
Colour code
Colour code
COBRA: 7 mm band width
COBRA: 8 mm band width
Colour code
COBRA: 9 mm band width
How to determine the correct nominal diameter
• Slide the hose onto the spigot and measure
the Outside Diameter Da.
• The Nominal Diameter d1 matching the outside
diameter Da of the hose can then be taken from the table.
Please do not hesitate to ask for samples prior to ordering nor to
ask for advice if you have further questions concerning possible
applications.
48
