Metal Square Bubble Level And Others

In engineering and construction, a flange is a protruding rim, collar, or ring on an object, such as the end of a pipe, for strengthening, guiding, or attaching to another object.

A flange bubble level might be a specific type of level designed to measure or ensure the levelness of flanges. For example, it might clip onto or sit atop a flange to ensure that the flange is perfectly horizontal when being installed, ensuring a proper fit and seal when mating two objects together. This could be a level that either attaches to a flange or is designed to sit atop a flange to ensure it’s level during installation or inspection.

• Flange: A flange is typically a flat rim or edge on an object, often at the end of a pipe or tube, intended for strengthening, guiding, or attaching to another object.
• Bubble Level (or Spirit Level): A tool used to determine whether a surface is level (horizontal) or plumb (vertical). It contains a sealed, liquid-filled vial with an air bubble. The position of the air bubble between marked graduations indicates the levelness of a surface.

Size(mm)	Hole Spacing(mm)	Mounting hole(mm )	Accuracy
35×6.5×6.5	29.7	3.3	16’/2mm
50x10x10	42	3.5	2’/2mm, 5’/2mm
58x15x14	48	4	60″/2mm, 30″/2 mm, 20″/2mm
58x15x14	48	4	60″/2mm, 30″/2 mm, 20″/2mm
66x15x14	56	4.5	60″/2mm, 30″/2 mm, 20″/2mm
79x15x15	69	5	60″/2mm, 30″/2 mm, 20″/2mm
100x22x18	79.5	3.5	4″/2mm, 10″/2mm, 20″/2mm
100x22x 18	79.5	3.5	2″/2mm
105x19x 19	94	4.5	4″/2mm, 10″/2mm, 20″/2mm
105x19x 19	94	4.5	2″/2 mm
132x22x 20	120	5.5	4′”/2mm, 10″/2mm, 20″/2mm
142x22x 20	129	4	4″/2mm, 10″/2mm, 20″/2mm
150x22x 18	140.3	4.2	1.0mm/m
58x15x12	47		60″/2mm
57x15x12	47		60″/2mm