(0254) 848 4830, 848 4754 info@langitfidelyoenergi.co.id

PWHT Services

PT. LANGIT FIDELYO ENERGI in executing its services. Due to the need for on-site pre heat and post weld heat treatment services. From this modest beginning in heat treatment, PT. Langit Fidelyo Eenergi has grown to become to leading supplier of heat treatment equipment and services, offering electrical and gas or oil fired heat treatment system to customer.

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PMI (Positive Material Identification)

With PMI the alloy composition and thus, the identity of materials can be determined. When the material certificate is missing or unclear and the costumer wants certainty about the composition of a material, PMI is the solution. PMI is particularly used for high-quality metals like stainless and high alloy metals.

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CPS (Cathodic Protection System)

Cathodic Protection is the most widely applied electrochemical corrosion control technique. This is accomplished by applying a direct current to the structure such as pipelines, storage tanks, pressure vessels  and others which causes the structure potential to change from the natural corrosion potential to a protective potential in the immunity region.

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Industrial Inspection

  • Preparation of welding inspection procedure and testing based on clients compilation of necessary materials specification data based on standard codes.
  • Witness qualification of welders and certify those who qualified the testing.
  • Control quality of work in progress and check/witness every stage of work based on standards.

Out-of-Service / On-Stream Inspection

  • On-Service Inspection (OSI): This inspection is performed while the tank is still in service.

Inspection Scope mainly involves detailed visual examination on exterior of the tank done by an authorized API-653 inspector and ultrasonic thickness measurement of the shell & roof plate including all nozzles.

  • Out of Service Inspection (OOSI):  This inspection is performed while the tank is not service.

Our authorized API-653 inspector conducts a visual inspection on exterior & interior of the tank and assures the quality and completeness of the nondestructive examination (NDE) results.

Nondestructive examination mainly involves MFLT on tank bottom & annular plates, ultrasonic thickness measurement of the shell & roof plate including all nozzles.

  • Reports:

Inspections shall be documented in a comprehensive report containing:

  1. All observations
  2. NDE results (UT, MFTL, etc.)
  3. Complete evaluation of the condition of the tank
  4. Tank repair recommendations, remaining life, tank external shell settlement cosine graph and inspection interval.

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