Why is it called pi tape?
Of course, for lumberjacks out working in the sometimes remote wilderness, it wasn’t ideal to first measure the circumference of a tree, then get out their pencil and paper to divide by pi arrive at the circumference calculation. And thus, the pi tape was born.
How accurate are PI tapes?
Pi Tape metric tapes have a diameter accuracy of ± 0,03 mm up to 3 600 millimeters. Pi Tape inch tapes have a diameter accuracy of ± 0,001″ up to 144 inches. In addition, Pi Tape can construct measuring tapes with customized lengths and widths to meet your every need.
What does a PI tape measure?
diameter
Pi Tape Measure gives a quick direct single reading of average diameter with micrometer accuracy simply by placing tape around the periphery. It is used to measure round or out-of-round specimens of concrete, soils, and asphalt.
Who invented the PI tape?
It is impossible to have a legitimate conversation about diameter measuring tapes without focusing on the names of Norman Collins, Leo Cochran and Harold Phillips, the individuals who invented and advanced the Pi Tape® measuring device system.
How do you read a Pitape?
Locate the zero (0) on the right side or vernier side of the pi tape. Read the measurement just above the zero. Each large numbered line is 1 inch. Here the last large number before the zero is 4 inches.
Is Pi a ratio?
Circles are all similar, and “the circumference divided by the diameter” produces the same value regardless of their radius. This value is the ratio of the circumference of a circle to its diameter and is called π (Pi).
How is pipe measured?
Pipe is usually measured by NOMINAL PIPE SIZE (NPS). For sizes larger than 12-inch, NPS corresponds to the actual outside diameter. For each nominal pipe size, the outside diameter (O.D.) remains relatively constant; the variations in wall thickness affect only the inside diameter (I.D.).
Who is the original manufacturer of Pi tape?
Pi Tape Texas, LLC, the original manufacturer of Pi Tape brand precision measuring tape, outside diameter, linear, Go/No-Go, inside diameter, O-rings, extended range tapes, Pipeline diameter measurement and Pipeline circumference measurement. Your cart is empty! Forgot Password? An unparalleled range of stock instruments.
What do you need to know about Pi tape?
Each Pi Tape® brand precision measuring tape is furnished with a Calibration Report whose measurement results are traceable through NIST to the international system of units (SI). Please click here to view our ISO/IEC 17025:2017 Certificate of Accreditation (pdf).
Who is the auditor for Pi tape Texas?
Pi Tape Texas, LLC continues to successfully complete onsite audits of our internal procedures from outside sources such as GE, Westinghouse and Lockheed Martin. We have also completed a NIAC criteria based field audit performed by Whiting Corporation, Assessment # 12530.
