Issue Date: November 22, 1995
April 28, 2005
OPW Fuel Management
(originally listed as Emco Electronics, Tuthill Transfer Systems)
AUTOMATIC ELECTRONIC LINE LEAK
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
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
||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.
aviation fuel, fuel oil #4.
pressurized fiberglass and steel pipelines.
Tests are conducted at operating pressure.
||Maximum of 67.4
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.
||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.
installation on pipeline.
Automatic testing of pipeline.
Single test to determine if pipeline is leaking.
Pump shutdown, message display, and alarm activation if leak is declared.
||System must be
checked annually and, if necessary, calibrated in accordance with
Ken Wilcox Associates
Santa Fe Dr.
Hodgkins, IL 60525
of Evaluation: 12/31/93, 07/18/94