Flange Hole Marker vs Pipe Working Pressure Calc Usage & Stats
This app is very useful during hole center Marking on flange at a given Pitch Circle Diameter.
This app gives hows much cord length required to divide required No of hole on our available Pitch Circle Diameter.
This app is very useful for those who are dealing with flange hole marking or bolt hole marking on flanges or any other application where we had to divide required no of parts on pitch circle diameter.
This app is for professional and any other who are working in the field of fabrication of process equipment such as pressure vessel, heat ex changer, storage tank,reactor, agitator or mixer and heavy engineering Equipment.
In this app Inputs required only pitch circle diameter ( PCD )or bolt hole circle diameter ( BCD ).
key words : Bolt Hole Diameter,Pitch circle Diameter,flanges, hole marking, fabrication, pressure vessel, welding etc
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Pipe Burst Working Pressure Calculator is a physics/math tool designed to calculate fluid pressure, pipe wall thickness, pipe outside diameter, safety factor, or material strength.
Features:
- Instant calculations
- Results can be copied to other apps
- Formulas included for reference
- Supports up to 16 decimal places
- Supports various units for each input
To find the burst pressure of a pipe, Barlow's Formula is used, along with associated equations to determine the working pressure of a pipe with a known diameter.
Barlow’s Formula establishes the relationship between internal pressure, allowable stress, nominal thickness, and diameter.
Equation:
P = (2*S*T)/(OD*SF)
Where:
P = Fluid Pressure (psi)
T = Pipe Wall Thickness (in)
OD = Pipe Outside Diameter (in)
SF = Safety Factor (for general calculations, use 1.5 – 10; use 1 for bursting pressure)
S = Material Strength (psi), minimum yield strength
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Flange Hole Marker VS. 
Pipe Working Pressure CalcJanuary 16, 2026