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Vicmarc Rotating Union 32mm hose
This Rotating Unions have a dovetail pickup to suite a self-centering four jaw chuck and an internal thread (M45 x2) to suite a chuck (VM120/150). Two ball bearings prevent the hose from spinning.
All the above vacuum accessories can be used with a normal household vacuum cleaner or a vacuum pump provided it has a flow rate of at least 3.2 m3/h (1.9 cfm). If using a vacuum pump be cautious not to set the pressure too high as this will result in possible damage to the bearing seals in the Rotating Union. Always start with low pressure and work your way up to a desired pressure.