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Issue Date: March 10, 2000
Revision Date: April 27, 2005
Purpora Engineering,
Inc.
(originally listed as Heath Consultants, Inc.)
Petro Tite
Line Tester
(for Flexible Pipelines)
LINE TIGHTNESS TEST METHOD
| Certification |
Leak rate of 0.1
gph with PD = 99.99% and PFA = 0.37%. |
| Leak
Threshold |
0.05 gph.
A pipeline system should not be declared tight if the test result
indicates a loss that equals or exceeds this threshold.
Vendor claims this equipment can detect leaks at .01 gph, and trains
operators to declare leaks at .01 gph. |
| Applicability |
Gasoline, diesel,
aviation fuel, fuel oil #4. |
| Specification |
System tests
flexible pipelines.
Pretests are conducted at 90 psi.
Tests are conducted at 60 psi.
Mechanical line leak detector must be removed from pipeline for duration
of test. |
| Pipeline
Capacity |
Maximum of 49.6
gallons. |
| Waiting
Time |
None between
delivery and testing.
None between dispensing and testing. |
| Test
Period |
Minimum of 1 hour pretest consisting of 2 segments (30 minute
pressurization at 90 psi followed by 30 minute pressurization at 60 psi).
Minimum of 30
minute (two 15 minute readings) test when the detected leak does not exceed
0.005 gph, or minimum of 1 hour (four 15 minute readings) test when the
detected leak is more than 0.005 gph for the first 30 minutes. Test data are
acquired and recorded manually. |
| Calibration |
System must be
checked annually and, if necessary, calibrated in accordance with
manufacturer's instructions. |
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Purpora Engineering, LLC
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Evaluator:
Ken Wilcox Associates
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P.O. Box 80265
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Tel:
(816) 443-2494
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Saukville, WI 53080
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Dates of Evaluations:
03/11/91, 12/07/94, 05/06/01
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Tel: (800) 352-2011
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E-mail: sap@purporaengineering.com |
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URL:
www.purporaengineering.com |
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