Universal Untied and Single Untied FCCU Expansion Joints has been designed, manufactured, tested and delivered for a large refinery in Europe.

The Universal Untied Expansion Joint incorporates 2 ply testable & packed Bellows in Alloy 800H, Internal and external insulation and sealing anchors and sealing rope
Medium: Flue Gas at 760 °C
Design Pressure: 3,94 bar (g)
Test Pressure: 5,9 bar (g)

The Single untied units incorporate 2 ply testable Bellows in Inconel 625LCF and Internal and external insulation.
Medium: Flue Gas at 538 °C
Design Pressure: 0,28 bar (g)
Test Pressure: 0,5 bar (g)

These FCCU Expansion Joints undergo a comprehensive quality control and testing program including:

— Review Drawings
— Advanced Review of Calculations
— Check Material and welding consumables certificates
— PWHT diagram if applicable.
— Review and update WPS, PQR and WQR
— Review NDE Procedures & Operator Qualification
— 100% Visual inspection of welds.
— 100% RT- Radiographic Examination
— 100% PT - Liquid Penetrant Examination
— MT - Magnetic Particle Examination when applicable
— Hardness Testing of Welds
— Pressure & Leak Detection Test
— 100% PMI - Positive Material Identification
— 100% Inspection of Refractory Lining by API Inspector
— Surface Preparation & Paint System

Quality Approvals

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