Author: ianoliver

These safety-critical fresh water coolers were manufactured for first-level submarine systems. The original units were designed and manufactured by Serck Heat Transfer in Birmingham in the early 1980s. After decades of service, replacement units were manufactured by Therco Serck in Sheffield using inherited Serck intellectual property. The scope included nickel aluminium bronze castings and tubesheets,…

Following thermal and mechanical design analysis, including finite element analysis, Therco Serck identified excessive tube stresses as a likely contributor to leakage in ageing De-Ethaniser Overhead Amine Coolers. The issue was linked to temperature gradients developing across the finned tube rows during transient conditions. Therco Serck designed directly interchangeable four-pass replacement bundles using solid plugged-box…

Therco Serck has manufactured proprietary titanium lubricating oil coolers for the nuclear industry for many years, supporting safety-critical applications where reliability, corrosion resistance and long service life are essential. These recent examples include generator transformer and boiler feed pump lubricating oil coolers, designed and manufactured to meet the demanding operational standards expected across the nuclear…

Therco Serck delivered shell and tube propylene refrigerant desuperheaters for a demanding process application, working collaboratively with Wood and SABIC. The units were TEMA 1080-6096 AJL type exchangers, with duplex stainless steel on the tube side and low-temperature carbon steel on the shell side. High-integrity equipment, delivered through close technical collaboration.

Surface condensers may operate at relatively low pressures and temperatures, but their design and manufacture remain demanding. By creating a vacuum at the steam turbine discharge, condensers support plant efficiency while recovering condensate for reuse within steam generation or boiler feed water systems. Reliability is critical. Corrosion, fouling, impingement attack, over-pressurisation and vibration must all…

Therco Serck recently completed the design, manufacture and testing of Reactor Effluent Exchanger bundles and floating heads at its Sheffield facility. Following testing, and in collaboration with KUE Group, a client-specified SÄKAPHEN® Si 57® E corrosion-resistant coating was applied to the tube side of both TEMA AES 1260-3658 bundles. The heat-cured coating offers hydrophobic performance…

Supporting EDF Nuclear Generation’s obsolescence and asset life extension programmes is both a privilege and a responsibility. Across the UK nuclear fleet, Therco Serck’s OEM Serck-type generator transformer coolers, turbine lubricating oil coolers, general service water coolers and diesel generator coolers continue to support long-term plant operation. Therco Serck has also worked closely with EDF’s…

These ASME VIII Div. 1 and API 661 air preheaters were UKCA marked, tested, purged and prepared for shipment to ExxonMobil’s Fife Ethylene Plant in the UK. Designed and manufactured for demanding process service, the units demonstrate Therco Serck’s capability across engineered air-cooled and heat recovery equipment.

Therco Serck formalised a partnership agreement with ND Engineering in Durban, South Africa, strengthening support for existing product end users across the region. The agreement combines Therco Serck’s OEM knowledge and technical records with ND Engineering’s established local fabrication capability and regional customer support.

In hydroprocessing applications, the Reactor Effluent Air Cooler is one of the most critical components in the high-pressure recycle gas loop. REAC units operate in challenging conditions where ammonium bisulphide and ammonium chloride precipitation, pressure drop, corrosion and erosion-corrosion must all be considered. Selecting the correct air cooler type, metallurgy, fabrication approach and NDT regime…