• 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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Nominal Diameter (Decimal)

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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 44.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 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 0.591 in15.00 mm N/A 1.811 in46 mm N/A 1.913 in48.60 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 47.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 1.850 in47 mm N/A 1.969 in50.00 mm
N/A 49.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 1.929 in49 mm N/A 2.047 in52.00 mm
N/A 49.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 1.929 in49 mm N/A
N/A 50.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 1.969 in50 mm N/A 2.087 in53.00 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
N/A 51.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 2.008 in51 mm N/A 2.126 in54.00 mm
N/A 51.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 2.008 in51 mm N/A 2.126 in54.00 mm
N/A 53.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 2.087 in53 mm N/A 2.205 in56.00 mm
N/A 53.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 2.087 in53 mm N/A 2.205 in55.80 mm
N/A 55.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 2.165 in55 mm N/A 2.283 in58.00 mm
N/A 55.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 2.165 in55 mm N/A 2.283 in58.00 mm
N/A 60.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 2.362 in60.00 mm N/A 2.480 in63.00 mm
N/A 60.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 2.362 in60.00 mm N/A
N/A 65.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 2.559 in65.00 mm N/A
N/A 65.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 2.559 in65.00 mm N/A 2.677 in68.00 mm
N/A 70.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 2.756 in70 mm N/A 2.874 in73.00 mm
N/A 70.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 2.756 in70 mm N/A
N/A 75.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.591 in15.00 mm N/A 2.953 in75.00 mm N/A
N/A 75.00 Millimeter (mm) Nominal Diameter Pre-Opened Constant Tension Band Clamp N/A 0.472 in12.00 mm N/A 2.953 in75.00 mm N/A 3.071 in78.00 mm
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