Piping reference data in seconds
Bolt sizing, torque patterns, flange dimensions, gasket specs, pipe schedules, and more. On your phone, tablet, or browser.
Stop flipping through charts
Crews waste time with PDF charts, worn manuals, and spreadsheets for a single bolt length or torque value. When the wrong stud gets installed or a torque sequence is done out of order, it means rework and downtime.
Flange Bolt Chart replaces all of that with a single app that works on any phone or browser — online or off. Three taps to the right answer.
What's included
Everything a pipefitter, mechanic, or engineer needs for flange work — all in one place.
Bolt Sizing
Look up bolt lengths, diameters, and wrench sizes for any ASME B16.5 flange class from 150# through 2500#.
- ✓Stud bolt lengths and diameters by flange size and class
- ✓Wrench size for each bolt diameter
- ✓Custom bolt length calculator
Torque Values & Patterns
Get torque values with gasket and lubricant selection, plus visual torque patterns showing the correct tightening sequence.
- ✓Torque values adjusted for gasket type and lubricant
- ✓Visual torque sequence diagrams for every bolt count
Flange, Gasket & Pipe Data
Flange dimensions, gasket ID/OD, ring joint dimensions, pipe schedules, and wall thicknesses — all from ASME standards.
- ✓Flange dimensions and facing details
- ✓Gasket and ring joint gasket specifications
- ✓Pipe schedules and wall thickness data
4.6
Stars on App Store & Google Play
★★★★☆
Since 2020
Serving crews nationwide
Trusted by pipefitters, mechanics & engineers
ASME · ANSI · ISO
Data sourced from published standards
B16.5, B36.10, B36.19, and more
What field professionals are saying
“I've saved more time on the job, and in turn made more money due to less down time.”
Corey
Pipefitter
“This App has come in handy countless times! It's easily accessible and easy to input the pertinent info to receive the desired answers.”
ACizzle#35
Field Professional
“This application allows the user to quickly get useful information when planning flange makeup — quick calculations in the office or field without awkward spreadsheets.”
John Olivier
O&G Engineer
Reference pages
Free engineering reference data from published standards.
Flange Reference
Dimensions and bolt data by NPS and class
Bolt Data
Stud bolt lengths, diameters, and wrench sizes
Pipe Data
Pipe schedules, wall thickness, and weights
Gasket Dimensions
Gasket ID/OD and ring joint specs
Valve Dimensions
Valve face-to-face and end-to-end data
Line Blanks
Blank and spacer dimensions by class
Thread Dimensions
Thread pitch, depth, and tap drill sizes
Specifications
ASME, ASTM, and API spec summaries
Ready to speed up your flange work?
Download the app or try the web tool to get bolt sizes, torque patterns, and piping data in seconds.
