Zenith constantly brings innovative world class engineering excellence, industry leading specialist access, extensive heavy lifting capability and a vast range of mechanical installation services including first class welding solutions for the globe’s leading blue chip companies in the oil, gas and petrochemical industry. Following Zenith’s safe and successful installation of Europe’s largest ground flare at ExxonMobil’s Mossmorron site in Fife, Scotland, Zenith was highly recommended by the Mossmorran engineering team to the refinery engineers at ExxonMobil, Fawley who were leading the ‘FAST’ project involving the refurbishment and further construction of a new fourth reactor in the existing residfiner at Fawley. ExxonMobil’s oil refinery in Fawley, Hampshire is the largest in the United Kingdom and one of the most complex in Europe. Zenith provided all the necessary skills, trades, and equipment, for all of the loop pipework and utilities installation to the residfiner. ExxonMobil’s $1.5 billion Fawley refinery FAST project represents the largest upgrade to a British refinery in decades.

Zenith’s team of mechanical and structural engineers, working together with Zenith’s specialist access, heavy lifting, pipe fitters and welding site operatives installed additional strengthening and support steel work to the existing reactor structure, which supports the inlet pipework. Once all the new strengthening steel work was installed, the inlet pipe was prepared, installed, and connected to the steel supports from the existing reactor to the entry point of the new fourth reactor. At the core of the project lies the installation and welding of 500mm and 400mm Sch 140 (45mm thk) heavy wall Stainless 347 and dissimilar pipe, using processes TIG root and FCAW fill and cap. Zenith brings a wealth of experience and certification in this field, ensuring safety, quality and reliability.

Zenith skills and certification includes:

Welder Procedure Qualification/Certification Execution class:

• Up to EXC3 According to BS EN 1090-2:2018
• ASME 1X
• BS EN 9606-1
• BS EN ISO 15614 1:2017+A1:2019

Flange Management

• Flange management systems including MJI10 manual torquing 18 tension 19 torquing
• Pre and post weld heat treatment

Piping Installation

• Personnel Trained to ECITB MJI10 manual torquing 18 tension 19 torquing
• Personnel Experience and ECITB trained to Swagelok Small Bore Tube Fitting Installation

LOKRING®

Zenith is a trained and approved installer of the LOKRING® system and able to install:

MAS-3000 carbon steel series pipe fittings

SS40 and SS-3300, 316L stainless steel series pipe fittings

CN-200 90/10 copper nickel series pipe fitting

CN-700 copper nickel pipe and tube fittings

The main advantage in using the LOKRING® method is that it eliminates the need for hot works at height in a refinery environment or offshore.

With complete confidence in Zenith’s innovation and excellence, Zenith is delighted to have developed a long and successful partnership with ExxonMobil at their Fife Ethylene Plant and now we have become well established and have safely and successfully undertaken numerous high profile projects at their Fawley refinery.