Tubular levels

Curved tubular levels

Curved tubular levels

Curved tubular levels will be heat-curved and not polished, so that they can be used one-sided only ('hunch' above). Commonly with two black markings or two double bars, they will be adjusted to reversal during assembly.

 

Order details:

1) Total length incl. tip from 25 to 70 mm

2) Outer diameter from 6 to 8 mm

3) Filling: green-yellow or clear

4) Normal radius 100 - 150 mm (appr. 50')

Polished tubular levels

Polished tubular levels

Polished tubular levels consists of glass-tubes which are internally barrel-shape polished. The flatter the internal radius, the more sensitive the bubble reacts and the quality becomes more important.

 

Order details:

1) Total length incl. tip from 25 to 150 mm.

The more sensitive a spirit level is, the longer a spirit level has to be.

2) Outer diameter from 6 to 15 mm.

Proportional to length and sensitivity.

3) Sensitivity from 4 seconds of arc to appr. 10 minutes.

That is about 0,02 mm/m to appr. 3 mm/m at 2mm bubble way, identical to the scale interval.

Example: 60'' = 0,3 mm/m - If the spirit level will be lifted on one side 0,3 mm on a horizontal surface with 1 m basis, the bubble flows 2 millimeters or one scale marking.

4) Scale markings in black or red, a various number of markings at a distance of 2 mm will be applied according to the length.

5) The bubble length is appr. 1/3 of the total length at 20°C and 1-2 mm shorter than the main scale marking.

 

Quantity: Polished spirit leveles are produced extra. The minimum quantity are 100 pieces. The following surcharges will apply for smaller orders:

 

Quantity Minimum quantity surcharge
1 - 6 pieces 250%
7 - 11 pieces 150%
12 - 20 pieces 100%
21 - 50 pieces 50%
51 - 74 pieces 25%
75 - 99 pieces 10%