Reference Manual
00809-0100-4792, Rev CA
August 2010
Rosemount 1495, 1496
www.rosemount.com
Appendix C Calculation Data Sheet
ROSEMOUNT INC.
1495 ORIFICE PLATE
CALCULATION DATA SHEET
GENERAL DATA
Customer: Customer Name
Project: 20XX Official Calculations
S. O. No: Sales Order Number
P. O. No: Customer P.O Number
Calc. Date: XX/XX/20XX
Model No: 1495PC080A3SA04625BC
Tag No: Tag Number
PRODUCT DESCRIPTION
Plate Type: Square-edge Tap Type: Flange tapping
Plate Material: 316 SST Tap Location: Upstream
Drain/Vent Diameter: None Line Size: 8-inch
Process Connection Pipe Schedule: 40
Pipe Material: Carbon Steel
INPUT DATA
Fluid Type: Steam
Fluid Description:
Pipe I.D. 7.981 inch
Pressure 60 psig Base Pressure 14.6960001 psia
Temperature at Flow: 307.33 F Base Temperature 59 F
Absolute Viscosity: 0.014093 cP
Isentropic Exponent 1.317455
Compressibility at Flow Base Compressibility
Density at Flow: 0.171328 lb/ft
3
Base Density lb/ft
3
Flow Rates
Minimum: 6000 lb/hr
Normal: 8000 lb/hr
Maximum: 10000 lb/hr
Full Scale: 10000 lb/hr
CALCULATED DATA (Calculation performed at normal conditions. DP in H
2
O at 68 °F)
Orifice Bore Size: 4.000 inch Bore Reynolds Number (Normal): 894278.832
DP at Min. Flow: 16.379 in H
2
O at 68 °F Pipe Reynolds Number (Normal): 448514.484
DP at Normal Flow: 29.117 in H
2
O at 68 °F Gas Expansion Factor: 0.99538888
DP at Max. Flow: 45.496 in H
2
O at 68 °F Permanent Pressure Loss:
URV (DP at Full Scale): 45.496 in H
2
O at 68 °F at Normal Flow: 21.2294996 in H
2
O at 68 °F
Drain/Vent Corr. Factor: 1 at Max Flow: 33.1710931 in H
2
O at 68 °F
Beta: 0.50119 Velocity at Max. Flow: 46.6687791 ft/sec
Discharge Coefficient 0.60366 Minimum Accurate Flow: 2111.34891 lb/hr
Notes
Calculation by VLB
This report is provided according to the terms and conditions of the instrument Toolkit End-Use Customer License agreement.
Version: 3.0 (Build 91) Printed on: XX/XX/XX 11:07
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