Outside Diameter of Flange using Bolt Diameter Formula

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The Outside Flange Diameter is defined as the sum of four-times the value diameter of driving shaft and two times the thickness of protecting rim. Check FAQs
Dfo=B+2db+12
Dfo - Outside Flange Diameter?B - Bolt Circle Diameter?db - Nominal Bolt Diameter?

Outside Diameter of Flange using Bolt Diameter Example

With values
With units
Only example

Here is how the Outside Diameter of Flange using Bolt Diameter equation looks like with Values.

Here is how the Outside Diameter of Flange using Bolt Diameter equation looks like with Units.

Here is how the Outside Diameter of Flange using Bolt Diameter equation looks like.

7.112Edit=4.1Edit+21.5Edit+12
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Outside Diameter of Flange using Bolt Diameter Solution

Follow our step by step solution on how to calculate Outside Diameter of Flange using Bolt Diameter?

FIRST Step Consider the formula
Dfo=B+2db+12
Next Step Substitute values of Variables
Dfo=4.1m+21.5m+12
Next Step Convert Units
Dfo=4100mm+21500mm+12
Next Step Prepare to Evaluate
Dfo=4100+21500+12
LAST Step Evaluate
Dfo=7.112m

Outside Diameter of Flange using Bolt Diameter Formula Elements

Variables
Outside Flange Diameter
The Outside Flange Diameter is defined as the sum of four-times the value diameter of driving shaft and two times the thickness of protecting rim.
Symbol: Dfo
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Bolt Circle Diameter
Bolt Circle Diameter is the diameter of the circle on which the holes will be evenly distributed.
Symbol: B
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Nominal Bolt Diameter
Nominal Bolt Diameter is the diameter equal to the external diameter of the threads or the overall diameter of the part.
Symbol: db
Measurement: LengthUnit: m
Note: Value should be greater than 0.

Other formulas in Design of Pressure Vessel Subjected to Internal Pressure category

​Go Circumferential Stress (Hoop Stress) in Cylinderical Shell
σc=PInternalD2tc
​Go Longitudinal Stress (Axial Stress) in Cylindrical Shell
σCylindricalShell=PLSD4tc
​Go Hoop Strain
E=l2-l0l0
​Go Bolt Circle Diameter
B=Go+(2db)+12

How to Evaluate Outside Diameter of Flange using Bolt Diameter?

Outside Diameter of Flange using Bolt Diameter evaluator uses Outside Flange Diameter = Bolt Circle Diameter+2*Nominal Bolt Diameter+12 to evaluate the Outside Flange Diameter, Outside Diameter of Flange using Bolt Diameter dimensions are determined by the pipe size and the pressure class required for the application. Outside Flange Diameter is denoted by Dfo symbol.

How to evaluate Outside Diameter of Flange using Bolt Diameter using this online evaluator? To use this online evaluator for Outside Diameter of Flange using Bolt Diameter, enter Bolt Circle Diameter (B) & Nominal Bolt Diameter (db) and hit the calculate button.

FAQs on Outside Diameter of Flange using Bolt Diameter

What is the formula to find Outside Diameter of Flange using Bolt Diameter?
The formula of Outside Diameter of Flange using Bolt Diameter is expressed as Outside Flange Diameter = Bolt Circle Diameter+2*Nominal Bolt Diameter+12. Here is an example- 7.112 = 4.1+2*1.5+12.
How to calculate Outside Diameter of Flange using Bolt Diameter?
With Bolt Circle Diameter (B) & Nominal Bolt Diameter (db) we can find Outside Diameter of Flange using Bolt Diameter using the formula - Outside Flange Diameter = Bolt Circle Diameter+2*Nominal Bolt Diameter+12.
Can the Outside Diameter of Flange using Bolt Diameter be negative?
No, the Outside Diameter of Flange using Bolt Diameter, measured in Length cannot be negative.
Which unit is used to measure Outside Diameter of Flange using Bolt Diameter?
Outside Diameter of Flange using Bolt Diameter is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Outside Diameter of Flange using Bolt Diameter can be measured.
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