Failure analysis of cracking in the welded joints of hydrogen reformer

In 2021, the failure accident was discovered in the welded joints between the outlet pigtail tube and hot wall tube in a top

Fusion Splicing Fiber Optics

A fusion splice is a way of joining two fiber cores by melting the ends together using an electric arc. A splicing machine is used

Evaluation of Stress Relaxation Cracking on 800HT

The results indicate that microcracks are discovered in the fusion zone and heat affected zone (HAZ). The crack

TECHNICAL NOTE

This complete retubing of the hot collector meant significant down time for the ammonia plant due to the large (160) number of

Microsoft Word

In recent years, a number of reformer furnace operators have encountered problems of in-service degradation and cracking of outlet

Failure of Inlet Pigtail Pipes

This case study details the failure of recently replaced inlet pigtail pipes for a hydrogen reformer furnace. The pigtail connection to the

the importance of a PIGTAIL ON A STEAM PRESSURE GAUGE

PIGTAIL ON A STEAM PRESSURE GAUGE The pigtail was invented to prevent the internal parts of steam pressure gauges,

FABRICATION OF PIGTAIL ASSEMBLIES

This chapter discusses the fabrication of pigtail assemblies. A primary reforming furnace tube increases in length by about 4 and 3/4

API TR 942-A

High reliability of outlet pigtails and manifold components, such as headers, tees, and fittings, is important to the

Predicting the Remaining Life of Reformer Outlet Components

Methods of addressing these issues and predicting pigtail life are described. Outlet headers and manifolds vary

High-Temperature Cracking Of 800Ht Pigtails In A Hydrogen Unit

To prevent these failures, the pigtails need to undergo hot bending. This process will avoid dramatic precipitation and

What is a Fiber Optic Pigtail, and What Is It Used For?

A fiber optic pigtail is typically used for field termination with a mechanical or fusion splicer.

No. 17 – Pigtails for Steam Pressure Gauges

The pigtail was invented to prevent the internal parts of steam pressure gauges, particularly the materials of the

Process and metallurgical evaluation of outlet pigtails damage in the

The obtained findings demonstrated that the failure of outlet pigtails was attributed to over-design operating

Extending the life of steam methane reforming pigtails

Outlet pigtails, in contrast, must be able to withstand temperatures up to 900°C, which creates harsher hot corrosion

Reformer Pigtail Degradation over 49 Years'' Service: A Case Study

This paper investigates the failure mechanism and discusses several destructive and non-destructive testing

Evaluation of creep damage of INCOLOY 800HT pigtails in a refinery

A metallurgical evaluation of creep damage has been performed on pigtail samples removed after 8.5 years of

Microsoft Word

High reliability of outlet pigtails and manifold components, such as headers, tees, and fittings, is important to the successful long-term

What Is a Pigtail Connector? Types and Applications | CZT

Quick Answer A pigtail connector is a short cable with a connector on one end and bare (stripped) wire or fiber on the

What Is It and How to Splice It

What Is It and How to Splice It In fiber optic cable installation, how cables are attached to the system is vital to the success of

Reliability of reformer outlet systems

This article discusses other damage mechanisms and metallurgical factors not accounted for in the design of reformer

Reliability of reformer outlet systems

The hot collector system is equally as important as the catalyst tubes because the equipment operates at a sufficiently

How to Splice Fiber Optic Pigtails: A Step-by-Step Guide

Master the art of fiber termination. Learn how to splice fiber optic pigtails using fusion splicing, follow the color code,

Evaluation of Stress Relaxation Cracking on 800HT Pigtails

Abstract Stress relief cracking occurs when susceptible alloys are subjected to thermal stress after welding to reduce residual

Damage analysis of 800 series materials from reformer tube outlet

To summarized, the suggestions and measures are put forward from the aspects of design, manufacturing, inspection,

Process and metallurgical evaluation of outlet pigtails damage in the

Under operation at high temperature, the pigtails undergo the advance stage of irreversible creep and failed before their

Fiber Optic Pigtails for Sale

FS fiber optic pigtails offer a fast way to make fiber optic communication devices in the field by fiber splicing, fully manufactured and

Heat fusion

Heat fusion (sometimes called heat welding, butt welding or simply fusion) is a welding process used to join two different pieces of a

Fiber Optic Fusion Splicing

Fiber optic fusion splicing is on the rise and Corning''s Pigtailed Splice Cassettes enable faster field splicing and easy modular

MECHANICAL INTEGRITY OF SYNGAS OUTLET SYSTEMS

4.2 Hot outlet systems Within a hot outlet system, the outlet collectors gather syngas from multiple catalyst tubes and operate at syn

Fibre Optic Cable Fusion Splicing Tutorial: Techniques

Mastering fusion splicing is essential for achieving reliable and efficient fibre optic cable

(PDF) Failure analysis and creep remaining life of hydrogen reformer

A failure analysis and creep remaining life assessment on hydrogen reformer outlet pigtail tubes in a methanol plant was conducted.

Pigtail Failure Mechanisms and Inspection

Pigtails are used to transfer syn-gas from reformer tubes to manifolds and experience high stresses from

Failure Analysis of Hot Clamp Induced Cracking on Hydrogen

Failure analysis of the hot clamped outlet pigtail tubes connected with hydrogen reformer tube in refineries has been carried out. In

Fiber Optic Pigtail: The Complete Guide to Types,

Confused about fiber optic pigtails—which connector type, which polish, fusion or

Evaluation of creep damage of INCOLOY 800HT pigtails in a refinery

In this paper, hot clamp induced cracking on Incoloy 800HT outlet pigtail tube of a reformer unit is studied by

October 2018 Fiber Splice-On Connectors

Pigtails versus Splice-On Connectors When looking at a fusion splice solution there are essentially two main options: splicing a