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Flange Integrity: Bolted Joint Integrity & Gaskets Training Course

Explains bolted joint behavior, from preload and bolt stress to gasket recovery and flange rotation, and how ASME PCC-1 guidance prevents flange leaks.

MEC · Mechanical EngineeringAll Levels#2216ClassroomEnglish , Arabic
Duration
5 Days
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Free substitution at any time · 30+ days' notice: full refund minus 10%. Cancellation policy

Course Overview

Bolted flanged joints are among the most common leak points in oil refineries, petrochemical plants, oil and gas facilities, and power plants. A single leak from a joint in hydrocarbon, sour, or high-temperature service can lead to fire, hazardous release, or unplanned unit shutdown. The Flange Integrity: Bolted Joint Integrity and Gaskets Training Course equips static equipment, maintenance, and inspection engineers and technicians with the technical knowledge and practical methodology needed to assemble, tighten, inspect, and manage bolted joints so that they achieve reliable sealing throughout their service life, not only during testing. The course content is built on the realities of static equipment maintenance in refinery units, where the causes of flange leaks are specific and familiar to anyone who has worked through a turnaround: bolts tightened based on personal experience rather than calculated torque values; the effect of lubrication and friction on actual bolt load being ignored; gaskets unsuitable for the service or the flange facing; reuse of damaged gaskets or bolts; flange faces not inspected for finish and flatness; poor alignment between flanges; incorrect tightening sequences; loss of bolt load due to creep relaxation and thermal cycling; and missing records showing who assembled the joint, how, and to what values. The course is anchored in ASME PCC-1 guidelines for pressure boundary bolted flange joint assembly and links them in practical terms to the complementary standards and references engineers use every day, including ASME B16.5 and ASME B16.47 for flanges, ASME B16.20 for metallic, spiral wound, and ring joint gaskets, ASME B16.21 for non-metallic flat gaskets, flange design requirements in ASME Section VIII, bolting material specifications such as ASTM A193, ASTM A194, and ASTM A320, sour service requirements in refineries, and industry guidance on managing the integrity of bolted joints. The program covers bolted joint behavior, selection of flanges, gaskets, and bolting, calculation of target bolt stress and required torque, joint preparation, flange face inspection and alignment, tightening sequences, controlled bolting methods using torque and hydraulic tensioning, leak testing, leak diagnosis, and management of a joint integrity program including personnel qualification. The course is delivered in a classroom setting using an interactive, application-focused approach that compensates for field work through intensive practical tools. These include worked examples of target bolt stress and required torque calculations accounting for the nut factor, photographs of actual flange face, gasket, and bolt defects, videos of different tightening methods, case studies of leaks and incidents involving bolted joints, and review of sample joint assembly records. Participants leave with a joint preparation and inspection checklist, a bolted joint assembly and tightening work procedure, a joint assembly record template, a methodology for classifying critical joints, and an improvement plan for the joint integrity program in their facilities.

Learning Objectives

  • Analyze the importance of bolted flanged joint integrity to process safety, the main causes of joint leakage, and the scope of ASME PCC-1 guidelines on Day 1.
  • Apply bolted joint behavior concepts, including preload, bolt stress, gasket recovery, flange rotation, and relaxation, to interpret joint performance.
  • Evaluate flange types, facings, and pressure-temperature ratings in accordance with ASME B16.5 and ASME B16.47.
  • Evaluate gasket types, including spiral wound gaskets, ring type joints, kammprofile gaskets, metal jacketed gaskets, and sheet gaskets, and select the appropriate gasket for the service and flange facing.
  • Assess bolt and nut materials and requirements for sour service and for high- and low-temperature service.
  • Calculate target bolt stress and required torque, taking into account the nut factor, lubricant type, and gasket and flange limits.
  • Apply joint preparation requirements, including inspection of flange face finish and flatness, inspection of bolts and nuts, and acceptance and rejection criteria.
  • Assess flange alignment requirements and limits and the effect of piping loads on joint sealing.
  • Apply tightening sequences and steps in accordance with ASME PCC-1, including legacy and alternative patterns.
  • Evaluate controlled bolting methods, including manual torque, hydraulic torque wrenches, hydraulic tensioning, and bolt elongation measurement, and select the appropriate method for each joint.
  • Analyze the causes of in-service joint leakage, define corrective actions, and assess the risks of hot bolting.
  • Design a bolted joint integrity management program covering critical joint classification, personnel qualification, documentation, and performance indicators by the end of Day 5.

Who Should Attend

This course is designed for static equipment engineers, mechanical maintenance engineers, inspection engineers, piping engineers, maintenance supervisors, bolted joint assembly and controlled bolting technicians, and bolting contractors responsible for opening, assembling, and closing bolted joints during operations and turnarounds. It is also suitable for reliability and process safety engineers, turnaround planners, and process engineers responsible for unit start-up after maintenance. The course is particularly valuable for professionals in oil refineries, petrochemical, fertilizer, and gas processing plants, onshore and offshore production facilities, power generation plants, and technical service companies and maintenance contractors. Quality assurance and quality control engineers, HSE professionals, project and design engineers responsible for selecting flanges, gaskets, and bolting, and maintenance and inspection managers who oversee asset integrity programs and aim to reduce leaks and emissions will also benefit from the course.

Learning Outcomes

  • By the end of the course, participants will be able to:
  • Explain how a bolted flanged joint works and why it leaks, and relate this to ASME PCC-1 guidelines.
  • Identify flange type, facing, and rating, gasket type, and bolting materials from drawings, datasheets, and markings.
  • Select the appropriate gasket for the service, temperature, pressure, and flange facing.
  • Calculate target bolt stress and required torque taking into account the nut factor and lubricant.
  • Assess the condition of flange faces, gaskets, and bolts from photographs and inspection reports and decide on acceptance, repair, or replacement.
  • Evaluate flange alignment and determine when a problem requires correction in the piping rather than at the joint.
  • Define the appropriate tightening sequence and steps for each joint in accordance with ASME PCC-1.
  • Select the appropriate controlled bolting method and define requirements for tools, their calibration, and safe use.
  • Diagnose the causes of in-service joint leakage and propose appropriate corrective actions.
  • Assess the risks of hot bolting and define the necessary controls when it is required.
  • Prepare a complete and traceable assembly record for each critical joint.
  • Propose a practical bolted joint integrity management program for their facilities.

Course Outline

Course Outline:

Day 1

Fundamentals of Bolted Joint Integrity

  • The importance of bolted joint integrity to process safety and to reducing leaks and emissions
  • Bolted joint behavior: preload, bolt stress, gasket compression and recovery, flange rotation, relaxation
  • Main causes of joint leakage in refineries and industrial facilities
  • Scope of ASME PCC-1 and its relationship to flange, gasket, and bolting standards
  • Practical application: participants analyze case studies of actual leaks and incidents and identify their root causes
Day 2

Joint Components: Flanges, Gaskets, and Bolting

  • Flange types, facings, and pressure-temperature ratings per ASME B16.5 and ASME B16.47
  • Gasket types, properties, and limitations: spiral wound, ring type joints, kammprofile, metal jacketed, sheet gaskets
  • Bolt and nut materials and requirements for sour service and high- and low-temperature service
  • Selecting the appropriate gasket for the service and its compatibility with the flange facing
  • Practical application: participants select gaskets and bolting for different refinery services and justify their choices
Day 3

Preparation, Calculations, and Joint Assembly per ASME PCC-1

  • Inspection of flange face finish and flatness and acceptance and rejection criteria
  • Inspection, cleaning, and lubrication of bolts and nuts and the effect of the nut factor
  • Calculating target bolt stress and required torque and gasket and flange limits
  • Flange alignment, legacy and alternative tightening patterns, and tightening steps
  • Practical application: worked examples of required torque calculations and assessment of photographs of flange face, gasket, and bolt defects
Day 4

Controlled Bolting Methods, Leak Testing, and Troubleshooting

  • Manual torque and hydraulic torque wrenches: applications, limitations, and calibration
  • Hydraulic tensioning, bolt elongation measurement, and verification of actual bolt load
  • Post-assembly leak testing and safety requirements during testing and start-up
  • In-service leak diagnosis, hot bolting risks, and difficult services such as high temperature, thermal cycling, and hydrogen
  • Practical application: simulation of controlled bolting steps using videos and analysis of leak cases with proposed corrective actions
Day 5

Managing the Bolted Joint Integrity Program

  • Classifying critical joints and developing a joint register and joint tags
  • Qualification and supervision of bolted joint assembly and controlled bolting technicians
  • Documentation, assembly records, verification, and quality assurance during turnarounds
  • Joint integrity program performance indicators and learning from leaks
  • Final workshop: participants develop a joint assembly and tightening work procedure, a joint assembly record template, and an improvement plan for the joint integrity program in their facilities

Upcoming Dates

Selected date

Lisbon · 25 – 29 Jan 2027 · Classroom

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CityDatesPrice per ParticipantEarly Bird
BakuScheduled
2 – 6 Nov 2026€5,300—
BangkokScheduled
9 – 13 Nov 2026€6,700—
BarcelonaScheduled
16 – 20 Nov 2026€6,000—
BerlinScheduled
23 – 27 Nov 2026€6,300€5,670until 2 Nov
CairoScheduled
30 Nov – 4 Dec 2026€3,800€3,420until 9 Nov
CasablancaScheduled
7 – 11 Dec 2026€4,700€4,230until 16 Nov
DammamScheduled
7 – 11 Dec 2026€4,800€4,320until 16 Nov
DohaScheduled
14 – 18 Dec 2026€4,700€4,230until 23 Nov
DubaiScheduled
20 – 24 Dec 2026€4,700€4,230until 30 Nov
FrankfurtScheduled
28 Dec 2026 – 1 Jan 2027€6,200€5,580until 7 Dec
GenevaScheduled
4 – 8 Jan 2027€7,300€6,570until 14 Dec
IstanbulScheduled
11 – 15 Jan 2027€5,300€4,770until 21 Dec
Kuala LumpurScheduled
18 – 22 Jan 2027€4,700€4,230until 28 Dec
LondonScheduled
25 – 29 Jan 2027€5,800€5,220until 4 Jan
LisbonScheduled
25 – 29 Jan 2027€6,000€5,400until 4 Jan
MadinahScheduled
1 – 5 Feb 2027€4,800€4,320until 11 Jan
MadridScheduled
8 – 12 Feb 2027€6,000€5,400until 18 Jan
MakkahScheduled
15 – 19 Feb 2027€4,800€4,320until 25 Jan
ManamaScheduled
22 – 26 Feb 2027€5,300€4,770until 1 Feb
MarrakeshScheduled
1 – 5 Mar 2027€4,700€4,230until 8 Feb
MilanScheduled
8 – 12 Mar 2027€7,000€6,300until 15 Feb
MunichScheduled
8 – 12 Mar 2027€6,000€5,400until 15 Feb
MuscatScheduled
15 – 19 Mar 2027€6,300€5,670until 22 Feb
OnlineScheduled
21 – 25 Mar 2027€2,700€2,430until 1 Mar
ParisScheduled
29 Mar – 2 Apr 2027€6,700€6,030until 8 Mar
RiyadhScheduled
5 – 9 Apr 2027€4,800€4,320until 15 Mar
RomeScheduled
12 – 16 Apr 2027€7,000€6,300until 22 Mar
ViennaScheduled
19 – 23 Apr 2027€6,400€5,760until 29 Mar
AmmanScheduled
25 – 29 Apr 2027€4,000€3,600until 5 Apr
AmsterdamScheduled
26 – 30 Apr 2027€6,000€5,400until 5 Apr

Available in: Istanbul · Dubai · London · Riyadh · Doha · Amsterdam

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