Issue Date: November 22, 1995
Revision Date: April 28, 2005
OPW Fuel Management Systems
(originally listed as Emco Electronics, Tuthill Transfer Systems)
EECO System LLD (Q0011)
Automatic Electronic Line Leak Detector
| Certification | Leak rate of 3.0 gph at 10 psi* with PD = 100% and PFA = 0%. Leak rate of 0.2 gph at operating pressure with PD = 100% and PFA = 0%. Leak rate of 0.1 gph at 1.5 times operating pressure* with PD = 100% and PFA = 0%. *Since leak rate varies as a function of pressure, this leak rate and pressure were certified using an equivalent leak rate and pressure, in accordance with an acceptable protocol. |
|---|---|
| Leak Threshold | 2.0 gph for leak rate of 3.0 gph. 0.1293 gph for leak rate of 0.2 gph. 0.0793 gph for leak rate of 0.1 gph. A pipeline system should not be declared tight if the test result indicates a loss that equals or exceeds this threshold. |
| Applicability | Gasoline, diesel, aviation fuel, fuel oil #4. |
| Specification | System tests pressurized fiberglass and steel pipelines. Tests are conducted at operating pressure. |
| Pipeline Capacity | Maximum of 67.4 gallons. |
| Waiting Time | None between delivery and testing. None between dispensing and testing for leak rate of 3.0 gph. Ranges from 0 to 1 hour, 27 minutes between dispensing and testing for leak rate of 0.2 gph. Ranges from 0 to 2 hours, 48 minutes between dispensing and testing for leak rate of 0.1 gph. |
| Test Period | Response time is 2 minutes for leak rate of 3.0 gph. Minimum of 9 minutes for leak rate of 0.2 gph. Minimum of 31 minutes for leak rate of 0.1 gph. Test data are acquired and recorded by a microprocessor. Calculations are automatically performed by the microprocessor. |
| System Features | Permanent installation on pipeline. Automatic testing of pipeline. Preset threshold. Single test to determine if pipeline is leaking. Pump shutdown, message display, and alarm activation if leak is declared. |
| Calibration | Equipment must be checked annually for capability of detecting a line leak of 3.0 gph and, if necessary, calibrated in accordance with manufacturer's instructions. |
- OPW Fuel Management Systems
6900 Santa Fe Dr.
Hodgkins, IL 60525
Tel: (708) 485-4200
URL: www.opwglobal.com/opw-fms - Evaluator: Ken Wilcox Associates
Tel: (816) 443-2494
Date of Evaluation: 12/31/93, 07/18/94
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