Document 91BmqaOY6zne7mkB9J8KeEyje

Section Number: Issue Number: Original Date: Revision Date: Title: References: Ethanolamines/Glycol Ethers Tier 3 Procedure 1307 1.3 06-25-91 Author: Mike viator 12-29-95 Leak checking plate exchangers Glossary for equipment identification (text #114) 1307. Leak Checking Plate Exchangers 1.0 Objective: 1.1 To test the gasket seal on all plate exchangers prior to being put in service. 2.0 Purpose: 2.1 To prevent contamination of product with water and in the case E-244, provide for maximum efficiency with no plate by-pass. 3.0 Special Notation: 3.1 The procedure for putting E-244 in service is also good for leak checking. External leaks are of concern here, where water contamination is not a problem. 4.0 Responsibility: 4.1 It is the responsibility of the operations supervisor and the senior operations specialist to ensure that this procedure is fully complied with. 4.2 It is the responsibility of the senior operation specialist and the operation specialist to ensure that this procedure is executed in a safe and efficient manner? 5.0 Procedure: 5.1 With exchanger blocked in install a double block and bleed with a pressure gauge on the low point bleed to the product side of E-262P or E-272P. Connect nitrogen here. (air supplies to much pressure.) 5.2 Slowly pressure up the product side with nitrogen while at the same time slowly opening the water side. Bring the pressures up together to prevent gasket displacement. 5.3 After both sides are under about 40 pounds per square inch gauge, observe exchanger for leaks, (external leaks) Date Printed:April 18, 1998 Paper Copies Of This Document Ar Uncontrolled & Not Subject To Update. The Controlled Document Resides In File: Lkckplex.Doc Page 1 Of 2 DO A 060100 CONFTDENTIAl 5.0 Procedure: Cont'd. 5.4 If exchanger leaks, try torqueing it up a little more unless gaskets are observed out of place. If gaskets are out of place the exchanger will need to be separated again for replacement of gasket(s). 5.5 If there are no leaks, put exchanger in service and periodically analyze the water content (analysis should be run every couple of hours for water to make sure that the exchanger is not leaking internally) water analysis should be <.10%). 6.0 Revisions Revision No. 1 07-20-93 Yearly Review Revision No. 2 12-23-94 Yearly Review Revision No. 3 12-29-95 Yearly Review Date Printed:April 18, 1998 Paper Copies Of This Document Ar Uncontrolled & Not Subject To Update. The Controlled Document Resides In File: Lkckplex.Doc Page 2 Of 2 DO A 0601 CONFIDENT! o <r