• Pre-Opened Constant Tension Band Clamps
Pre-Opened Constant Tension Bands are the ideal fasteners for hose-spigot connections which are subject to extreme temperature changes, or which tend to "slip away" under pressure of the clamp. This version is secured by a small plastic clip. After slipping the clamp onto the hose, this clip can be easily removed by hand. Pre-opened, (and if desired, pre-positioned on the hose) these spring band clamps are quick to assemble and easy to install. Their integrated spring retaining mechanism provides a continuously readjusting dynamic tightening effect. They are available in band widths of 12 and 15 mm and will accommodate nominal diameters from 13 up to 80 mm.
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Item #

Item Name

Band Width (Decimal)

Nominal Diameter (Decimal)

Expanded Diameter

N/A 13.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.512 in13 mm N/A 0.571 in14.50 mm
N/A 14.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.551 in14 mm N/A 0.622 in15.30 mm
N/A 15.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.591 in15 mm N/A 0.661 in16.80 mm
N/A 16.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.630 in16 mm N/A 0.689 in17.50 mm
N/A 17.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.669 in17 mm N/A 0.728 in18.50 mm
N/A 18.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.709 in18 mm N/A 0.748 in19.00 mm
N/A 19.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.748 in19 mm N/A 0.827 in21.00 mm
N/A 20.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.787 in20 mm N/A 0.850 in21.60 mm
N/A 22.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.866 in22 mm N/A 0.965 in24.50 mm
N/A 23.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.906 in23 mm N/A 0.972 in24.70 mm
N/A 24.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 0.945 in24 mm N/A 1.024 in26.00 mm
N/A 26.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.024 in26 mm N/A 1.102 in28.00 mm
N/A 27.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.063 in27 mm N/A 1.142 in29.00 mm
N/A 28.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.102 in28 mm N/A 1.201 in30.50 mm
N/A 29.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.142 in29 mm N/A 1.240 in31.50 mm
N/A 32.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.260 in32 mm N/A 1.358 in34.50 mm
N/A 35.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.378 in35 mm N/A 1.496 in38.00 mm
N/A 36.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.417 in36 mm N/A 1.535 in39.00 mm
N/A 38.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.496 in38 mm N/A 1.634 in41.50 mm
N/A 40.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.575 in40 mm N/A 1.673 in42.50 mm
N/A 42.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.654 in42 mm N/A 1.752 in44.50 mm
N/A 44.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.732 in44 mm N/A 1.831 in46.50 mm
N/A 46.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.811 in46 mm N/A 1.929 in49.00 mm
N/A 47.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.850 in47 mm N/A 1.969 in50.00 mm
N/A 50.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.969 in50 mm N/A 2.087 in53.00 mm
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