Pressure

Suggested Transient Pressure Monitoring Program
The TP-1 Transient Pressure Monitoring System opens the door to more effective management of our pipeline assets through systematic and comprehensive pressure monitoring. Drawing from our experience in the pipeline industry and from the work of our customers, we suggest these general uses of the TP-1:

    • Troubleshooting pipeline problems – Pipetech International frequently receives calls from agencies, engineering firms, and operators who have encountered a problem that is not well understood, and hydraulic transients are suspected. A monitoring period and data review has immediately disclosed the presence of damaging transient pressures, and nature of the transient has revealed the cause. Corrective action has eliminated the condition, often with little delay or cost. The problems which have prompted the use of the TP-1 have included
      • Pipeline ruptures and structural damage
      • Blown seals and gaskets
      • Violent noise in buildings with fire suppression systems
      • Movement and shaking of earth and foundations near pipelines

 

  • Validating hydraulic models – The hydraulic pipeline designer will want to validate the hydraulic model, and the best way to do so is to check the actual pressures in a pipeline against the predicted pressures.
  • Owner’s acceptance test – The pipeline owner’s best interests will be served by an acceptance test at the conclusion of construction that includes hydrodynamic pressures, as a compliment to the traditional hydrostatic pressure test. This is expected to become the standard of care for pipeline construction management in the future. (A sample specification for this test is given in the reference section)
  • Post-modification monitoring – Monitoring after any modification or replacement of valves, valve actuators, or pumps is prudent to ensure that no damaging changes to pipeline hydraulics have been inadvertently introduced.
  • Freezing conditions – Monitoring water pipelines should be performed during freezing conditions when air valves or relief valves may become frozen and inoperative.
  • Routine asset management – Periodic monitoring for transient pressures should be performed as part of asset management programs, on a regular basis, at critical points in a pipeline subject to transients.
  • Regulatory requirements – Continuous monitoring in satisfaction of regulatory requirements is important for petroleum pipeline operators. In the water and sewer pipelines, continuous pressure monitoring may be required by the USEPA or state regulatory agencies. In the petroleum pipeline industry, pipelines have an established maximum operating pressure, and the operators are responsible to record the pressures frequently enough to ensure this limit is not exceeded.

Ordering the TP-1 System and Services
The TP-1 Transient Pressure Monitoring System is available to users through several mechanisms.

  • TheTP-1 system can be purchased directly from Pipetech International, or through our dealers and distributors.
  • The TP-1 system can be leased from Pipetech International on a simple 6-month lease-purchase arrangement.
  • The monitoring capability of the TP-1 system is available as a service from Pipetech International. Our dealers may have similar capabilities.
  • Pipetech International is available to assist in installation and training of the system users.
  • Pipetech International provides data review services for customers, using TP-1’s that are either owned by them or TP-1’s provided by Pipetech international.

Dealers and Distributors
The TP-1 Transient Pressure Monitoring System equipment and services are available directly from Pipetech International, or from our licensed distributors and dealers.

Pure Technologies Ltd: home office in Calgary, Alberta, Canada, and at other locations www.soundprint.com phone 403-261-6468

Pressure Pipe Inspection Company, home office in Mississauga, Ontario, Canada, and at other locations www.ppic.com, phone 905-624-1040 X 260