Issue Date: August 23, 1999
Revision Date: December 4, 2002
Caldon PF2000 Pipeline Leak
Detection System for Bulk Pipelines
Line Leak Detection Method for Airport Hydrant and Field Constructed Systems
||Leak rate of 10
gph at 100 psi with PD > 95% and PFA < 5%.
(EPA defined equivalent 3.0 gph at 10 psi).
The USEPA has not set a minimum detectable leak rate for large diameter
pipeline systems (airport hydrant systems) at the time of this evaluation.
A pipeline system should not be declared tight if pressure decay or change
in rate of decay in protected segment indicates a leak that exceeds this
aviation fuel, fuel oil #4.
fiberglass or steel piping up to 18 inches diameter.
Tests are normally conducted at operating pressures of 50 to 150 psi, but
system may not work at pressures less that 75 psi, and may need to be 100
psi or higher.
System may be used on pipelines pressurized up to 400 psi
Evaluation conducted on straight piping runs with capacities to 106,000
delivery and testing.
None between dispensing and testing.
||Variable up to 15
installation on pipeline.
Automatic testing under static conditions.
Single test to determine if pipeline is leaking.
Message display or printout, alarm activation if leak is declared.
Test data acquisition and calculation by system's computer.
||System must be
checked annually and, if necessary, calibrated in accordance with
vendor, system works in a complex piping network, can detect leaks
developed between static test times, and is capable of detecting gradually
increasing leaks once they reach the system's detection range. However,
not all these features were demonstrated during this evaluation or other
field demonstration testing.
Ken Wilcox Associates