Caption: Figure 2: Results from simulated hydrostatic test
and subsequent pressure cycling.
The amendment deleted the requirement for hydrostatic tests
from one portion of the contract, and reduced the test in another section of the contract from 225 psi to sixty-five psi.
"We are recognized in the industry for our mud pumps and mud cleaning systems, so a hydrostatic test
pump package fits well into our product line.
Fortunately, the next generation of hydrostatic test
systems has begun to rely on hydraulic drive.
OnTest is the revolutionary testing and data acquisition system that allows pipeline operators and integrity managers to view the same hydrostatic test
information that is displayed in the mobile testing facility, as well as, all stored test information and reconciliation calculations.
But the only internal testing standard is that a pipeline undergo at least one hydrostatic test
after it is put in service.
A typical industry hydrostatic test
involves purging all natural product out of the pipeline, cleaning the inside of the pipeline, filling the pipe segment with water and pressurizing the pipeline to a level higher than normal operating pressure and "holding" that pressure for a predetermined time duration.
The valve technician will ensure that all of the hose and valve connections are properly made up to eliminate the risk of leakage and a failed hydrostatic test
. The valve technician will also inspect for valve stem leakage, valve body leakage, valve fitting leakage during the pipeline hydrostatic test
This new instrumentation kit is said to be a quick and cost-effective way to perform hydrostatic tests
on pipelines, offering many advantages over traditional systems relying on dead weight testers, and pressure and temperature chart recorders.