Flange Calculation Record Form
Record the flange calculation inputs, method, results, and review details for engineering use.
Project and Flange Identification
Record / Calculation Reference No.
*
Project Name or Tag
*
Equipment or Line Identifier
*
Location / Service Name
*
Flange Assembly Identifier
*
Calculation Date
*
 -
Month
 -
Day
Year
2 digit month, 2 digit day, 4 digit year
Date
Calculation Purpose / Use Case Context
*
Reference Standard / Specification
Design Inputs and Operating Conditions
Flange Type / Configuration
*
Please Select
Weld Neck
Slip-On
Socket Weld
Blind
Lap Joint
Threaded
Other
Nominal Size (NPS / DN)
*
Pressure Class / Rating
*
Please Select
150
300
400
600
900
1500
2500
PN 10
PN 16
PN 25
PN 40
Other
Facing Type
*
Please Select
RF
FF
RTJ
Male-Female
Tongue-and-Groove
Other
Gasket Type
*
Please Select
Spiral Wound
Metallic
Non-Metallic
Kammprofile
RTJ Ring
Other
Bolt Material
*
Please Select
ASTM A193 B7
ASTM A193 B8
ASTM A193 B8M
ASTM A320 L7
ASTM A307
Other
Number of Bolts
*
Bolt Diameter (mm)
*
Design Pressure (bar)
*
Design Temperature (°C)
*
Operating Pressure (bar)
Operating Temperature (°C)
External Loads / Moments, Corrosion Allowance, or Design Margin
Material and Geometry Data
Flange material
*
Please Select
Carbon steel
Low-alloy steel
Stainless steel
Duplex stainless steel
Nickel alloy
Other
Calculation method or standard
*
Gasket type
*
Gasket dimensions / properties
Bolt circle diameter (mm)
*
Flange outside diameter (mm)
*
Hub or thickness dimension (mm)
Gasket seating width / effective width (mm)
Calculation Method and Results
Calculation Method / Formula Basis
*
Calculated Parameters
*
Preload / Bolt Load
Gasket Seating Load
Operating Load
Required Bolt Load
Bolt Stress
Flange Stress
Allowable Stress
Safety Factor / Utilization
Poor
1
2
3
4
5
6
7
8
9
Excellent
10
1 is Poor, 10 is Excellent
Review and Record Notes
Reviewer / Engineer Name
*
First Name
Middle Name
Last Name
Review Status
*
Please Select
Pending Review
Reviewed
Needs Revision
Approved
Rejected
Review Date
*
 -
Month
 -
Day
Year
2 digit month, 2 digit day, 4 digit year
Date
Approval Status
*
Please Select
Not Approved
Conditionally Approved
Approved
Notes / Comments
Submit Record
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