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PROCEDURE NO.
PAGE
PTD-DGS-110 PREPARED BY
PROCESS TECHNOLOGY PROCEDURES
Edited from existing doc by J.R. Barnhart
1
OF
3
DATE
April 30, 2000
APPROVED BY DEPARTMENT: SUBJECT:
PROCESS ENGINEERING
PROCESS STEAM TRAPS DESIGN GUIDE
JRB REVISION DATE
REV.
11/01/02 1.0
1
SCOPE
This design guide 1 specifies the data required for the selection of process steam traps. 2.0
RESPONSIBILITIES
The mechanical process section is responsible for performing the duties described and for supplying the data listed in Section 3.0. 3.0
DISCUSSION
The piping specification engineer supplies tag numbers and sizes for steam traps. For process steam traps, the mechanical process project supervising engineer completes form ENG-MP-11 ENG-MP-11 (Exhibit 1), and sends a print to the piping materials engineer. Line 1 - List tag number as shown on the piping and instrumentation instrumentation diagram (P&ID). Line 2 - Give the line number in which the trap is installed. Line 3 - List P&ID and section to assist in locating the trap. Line 4 - List the fluid in the line (e.g., steam condensate condensate or boiler blowdown). blowdown). Line 5 - Show the load to the trap, pound/hour or gpm. Line 6 - List equilibrium temperature at condensing conditions (condensate temperature). Line 7 - List maximum steam pressure and normal operating pressure, pounds per square inch gauge (psig). Line 8 - List the maximum pressure downstream of the trap, normally the condensate return system pressure, psig. Line 9 - Show liquid specific gravity gravity at inlet temperature (top). (top). Show liquid specific specific gravity at condensate condensate conditions (bottom). Drip-leg-steam-line traps and similar kinds of traps are completely specified by the piping specification project supervising engineer.
1
Rev. 0 of the Design Guide was adapted with minimal changes from a Pasadena document, DSG-MP21A, 10/92
PROCEDURE NO.
REV.
DATE
PTD-DGS-110
1
11/01/02
PROCESS STEAM TRAPS DESIGN GUIDE
4.0
EXHIBIT
The following exhibit is referenced in this procedure: Exhibit 1
Title Condensate Traps/Drainers Data Sheet
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PROCESS STEAM TRAPS DESIGN GUIDE
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PROCESS STEAM TRAPS DESIGN GUIDE
Job Number Condensate Trap Drainers Data Sheets 1 2 3 4 5 6 7 8 9
Tag Number Line Number P&ID Number Sect Fluid Norm Flow (lb/hr or gpm) Temp ºF Max Normal Press psig. Max Normal Back pressure, psig Liq sp gr: Top Bottom
Document Number
Rev.
Date
Sheet of
PROCESS STEAM TRAPS DESIGN GUIDE
Notes:
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PROCESS STEAM TRAPS DESIGN GUIDE
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Tag Number Line Number P&ID Number Sect Fluid Norm Flow (lb/hr or gpm) Temp ºF Max Normal Press psig. Max Normal Back pressure, psig Liq sp gr: Top Bottom
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PROCESS STEAM TRAPS DESIGN GUIDE
Notes:
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PROCESS STEAM TRAPS DESIGN GUIDE
This document and the design it covers are the property of PARSONS. They are loaned only with the borrower’s expressed written agreement that they will not be reproduced, copied, loaned, exhibited, or used in any other way, except by written consent from PARSONS to the borrower.
