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Pipeline Flange Modules

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CALCULATOR MODULE : ASME B31.3 Process Piping Blank Flange   ±
CALCULATOR MODULE : ASME B31.3 Process Piping Allowable Bolt Load And Bolt Stress   ±

Calculate ASME B31.3 process piping bolt design load and design stress from temperature (ASME B31.3 Table A-2). Stress values are interpolated from the US data tables (US units govern).

Bolt load is calculated from the design stress and the tensile area for either ANSI threads or ISO threads. For temperatures below the data range, the stress value is constant (fracture toughness should also be considered for low temperature operation). For temperatures above the data range the stress values can either be constant value from the end point, constant slope from the end point, or zero from the end point. Engineering judgement is required to use extrapolated values above the data range.

Use the Data Plot option to plot the design stress versus temperature for the selected material. Use the Data Table option to display the data table (Table A-2). Use the Result Table option to display a table of design stress and design load versus either material type or bolt diameter. Refer to the help pages for notes on the data tables. Use the workbook ASME B31.3 data tables to look up bolt allowable stress data.

Reference : ANSI/ASME B31.3 : Process Piping (2018)

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CALCULATOR MODULE : ASME B31.8 Gas Pipeline Fluid Velocity And Flow Rate   ±

Calculate ASME ASME B31.8 gas pipeline fluid velocity and flow rate for two phase gas liquid piping, and three phase black oil piping (gas water and oil).

The two phase fluid calculator can be used for single phase gas, single phase liquid, or two phase gas and liquid. The three phase black oil calculator can be used for single phase oil, single phase water, two phase oil and water, and three phase oil, water and gas. Water cut is the volume fraction of water in the liquid phase (ignoring the gas phase). Gas oil ratio (GOR) is the ratio of gas moles to liquid volume (ignoring the water phase). Gas moles are commonly measured as gas volume at standard conditions, eg SCM (Standard Conditions Meter) or SCF (Standard Conditions Feet).

Reference : ANSI/ASME B31.8 : Gas Transmission And Distribution Piping Systems (2018)

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CALCULATOR MODULE : ASME B31.1 Power Piping Blank Flange   ±
CALCULATOR MODULE : ASME B31.1 Power Piping Allowable Bolt Load And Bolt Stress   ±

Calculate ASME B31.1 power piping allowable bolt load and bolt stress from temperature (US units).

Allowable bolt stress is calculated from tables A-10. Bolt tensile area can be calculated for either ANSI threads, or ISO threads.

Use the data plot option to plot the allowable stress versus temperature for the selected material. Use the Data Table option to display the data table in the popup window (ASME B31.1 Table A-10). Use the Result Table option to display a table of allowable stress and allowable load versus material type. Use the workbook ASME B31.1 data tables to look up allowable bolt stress data.

Reference : ANSI/ASME B31.1 : Power Piping (2014)

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CALCULATOR MODULE : ASME B31.5 Refrigeration Piping Blank Flange And Closure   ±
CALCULATOR MODULE : Bolt Stress From Bolt Load   ±

Calculate bolt tensile stress from bolt load.

Select the bolt schedule (UNC, UNF, BSW or ISO), bolt diameter and thread, tensile area type (ANSI threads or ISO threads), and bolt material type (SAE, ISO or ASME). Bolt stress is calculated from the bolt load divided by the tensile stress area. The bolt is assumed to be in tension. The design stress is calculated from the yield stress or proof stress (SMYS).

Use the Result Table option to display a table of bolt stress versus either bolt size or bolt material.

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CALCULATOR MODULE : Bolt Tensile Area   ±

Calculate bolt tensile area and design load from the bolt diameter and design stress.

Bolt tensile area can be calculated for either ANSI threads or ISO threads. Bolt size can be calculated for either UNC, UNF, BSW or ISO bolts. The design stress can be calculated for either SAE, ISO or ASME bolt materials. The allowable bolt load is calculated from the design stress multiplied by the tensile area.

Use the Result Table option to display a table of tensile area and design load versus either bolt size or bolt material.

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CALCULATOR MODULE : Bolt Design Load   ±

Calculate bolt design stress and design load from bolt diameter and yield stress or proof stress.

Bolt load is calculated from the design stress (SAE, ISO or ASME), bolt size (UNC, UNF, BSW or ISO) and the tensile area (ANSI or ISO threads).

Use the Result Table option to display a table of design stress and design load versus either bolt size or bolt material.

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CALCULATOR MODULE : Bolt Design Stress And Design Load From Temperature   ±

Calculate bolt design load and design stress from temperature and bolt diameter.

The design stress calculations are taken from ASME B31.31.3 process piping, and ASME B31.1 power piping. The bolt tensile area is calculated for either ANSI threads or ISO threads. Bolt size can be calculated for either UNC, UNF, BSW or ISO threads.

Use the Result Plot option to display a plot of design stress versus temperature for the selected material. Use the Data Table option to display the data table in the popup window. Use the Result Table option to display a table of bolt design load versus either bolt size or bolt material.

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CALCULATOR MODULE : Flange Bolt Tensile Load   ±

Calculate flange bolt load, bolt stress and flange pressure.

The bolt load, bolt stress and flange pressure can be calculated from either the bolt design stress, a user defined bolt stress, a user defined bolt load, or a user defined flange pressure. The flange pressure is calculated with no gasket preload, or external loads such as bending moment. The bolt load equals the bolt stress times the tensile area. Tensile area is calculated for either ANSI or ISO threads. Bolt size can be calculated for either UNC, UNF, BSW or ISO bolts. The design stress can be calculated for either SAE, ISO or ASME bolt materials.

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CALCULATOR MODULE : Bolt Torque From Bolt Load   ±

Calculate bolt torque from bolt load and thread pitch.

The bolt pitch diameter can be calculated from the bolt diameter and the bolt pitch. The mean radius of the nut face can be taken as the middle diameter between the bolt diameter and the nut width across the flats. The flank angle is equal to half of the thread pitch angle. The friction factor is assumed to be the same for both the bolt thread and the nut face contact. Bolt stress is equal to the bolt load divided by the tensile area. Bolt tensile area can be calculated for either ANSI threads or ISO threads. Bolt size can be calculated for either UNC, UNF, BSW or ISO bolts. The design stress can be calculated for either SAE, ISO or ASME bolt materials.

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CALCULATOR MODULE : Bolt Pitch Diameter From Bolt Size And Thread   ±

Calculate bolt pitch diameter from bolt diameter D and bolt pitch P.

For ANSI threads, the bolt pitch diameter Dp is equal to D - 0.65 * P. For ISO threads, the bolt pitch diameter Dp is equal to D - 0.6495191 * P. Use the Result Table option to display a table of bolt pitch diameter versus bolt diameter for the selected bolt schedule.

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CALCULATOR MODULE : AS 2885.1 Pipeline Bolt Torque   ±

Calculate AS 2885.1 pipeline flange bolt load, and bolt torque.

The bolt preload is calculated from the internal pressure and the bending moment, with an applied design factor. The bolt torque can be calculated from the bolt preload. The bolt stress is calculated from the bolt load and the bolt tensile area.

Reference : Australian Standard AS 2885.1 : Pipelines - Gas And Liquid Petroleum Part 1 : Design And Construction (2015)

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CALCULATOR MODULE : ASME B16.5 Pipe Flange Pressure Rating   ±

Calculate ASME B16.5 pipe flange rated pressure versus temperature (Table 2 SI values).

Rated pressure can be calculated by material group, or pipe flange class (class 150, 300, 400, 600, 900, 1500 and 2500). The rated pressure values are valid from -26 C, to the maximum data temperature. For temperatures greater than the maximum data temperature, the rated pressure can be calculated using either the constant value or constant slope option (these options should be used carefully - engineering judgment is required). Otherwise the rated pressure should be set to zero, as per the code. For temperatures below -26 C, addditional testing may be required (engineering judgment is required).

Use the Data Plot option to plot the rated pressure versus temperature for the selected material. Use the Data Table option to display the data table in the popup window (Table A-1 or K-1). Use the Result Table option to display a table of rated pressure versus material group or flange class. Change units on the setup page.

Reference : ANSI/ASME B16.5 : Pipe Flanges And Flanged Fittings (2017)

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CALCULATOR MODULE : ASME B16.5 Pipe Flange Bolt Load   ±

Calculate ASME B16.5 pipe flange bolt load, bolt stress and flange pressure.

Select a suitable bolt diameter and material type. The bolt load, bolt stress and flange pressure can be calculated from either the bolt design stress, a user defined bolt stress, a user defined bolt load, or a user defined flange pressure. The flange pressure is calculated with no gasket preload, or external loads such as bending moment. The bolt load equals the bolt stress times the tensile area. Tensile area is calculated for either ANSI or ISO threads. The gasket outside diameter can either be taken as the flange hub diameter, or be user defined.

Reference : ANSI/ASME B16.5 : Pipe Flanges And Flanged Fittings (2017)

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DATA MODULE : ASME B31 Pipe And Flange Dimension ( Open In Popup Workbook )   ±

ASME B31.8 gas pipe and flange data values: pipe dimensions, flange dimensions, cover requirements, cold bends, burn through and location class.

Reference : ANSI/ASME B31.8 : Gas Transmission And Distribution Piping Systems

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    DATA MODULE : Flange Bolt ( Open In Popup Workbook )   ±
    DATA MODULE : Pipe Flange ( Open In Popup Workbook )   ±
    DATA MODULE : ASME B31.1 Power Piping Allowable Bolt Stress ( Open In Popup Workbook )   ±

    Bolt allowable stress data for ASME B31.1 power piping (Table A-10 US values).

    Use the ASME B31.1 allowable bolt load and bolt stress calculators (see link below) to calculate the allowable bolt stress and allowable bolt load from temperature.

    Reference : ANSI/ASME B31.1 : Power Piping

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    DATA MODULE : ASME B31.3 Process Piping Allowable Bolt Stress ( Open In Popup Workbook )   ±
    DATA MODULE : ASME B16.5 Pipe Flange Pressure Rating ( Open In Popup Workbook )   ±

    ASME B16.5 pipe flange rated pressure versus temperature for class 150, 300, 400, 600, 900, 1500 and 2500 (Table 2 SI values).

    Use the ASME B16.5 rated pressure calculators (see link below) to interpolate the data values, or to convert the data values to other units.

    Reference : ANSI/ASME B16.5 : Pipe Flanges And Flanged Fittings (2017)

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    DATA MODULE : ASME B16.5 Pipe Flange Drilling Template ( Open In Popup Workbook )   ±

    ASME B16.5 pipe flange drilling template for class 150, 300, 400, 600, 900, 1500 and 2500 (Table 11).

    Use the ASME B16.5 flange bolt load calculators (see link below) to calculate bolt stress, bolt load, and flange pressure.

    Reference : ANSI/ASME B16.5 : Pipe Flanges And Flanged Fittings (2017)

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