PROJECTEnquire ↗Process plant upgrades
Staged refurbishment of selected formalin process equipment for an export project. Documented work covers 17 shell-and-tube heat exchangers, repairs and checks of electric heaters, servicing of pressure relief valves and preparation of piping assemblies for transport.
Delivery scope & origin
Refurbishment and partial dispatch stagesHistorical project portfolio; the commercial records identify the supplier as MIS GROUP s.r.o., company ID 04624688.
The project in context
Completed refurbishment work packages and a separately documented dispatch stage for piping assemblies.
Refurbishment proceeded through distinct work packages: dismantling and cleaning, repairs, reassembly, testing and protective coating, followed by preparation for export. The 2021 piping lots are quantified separately.
The shell-and-tube exchangers were dismantled and their components marked for reassembly. Shells and tube bundles were flushed with pressurised water, deposits and corrosion were removed by blasting and mechanical cleaning, and the equipment was degreased and purged with air.
The report describes partial repairs to spindle and drive components, including replacement covers where the original parts could not be repaired. The completed work package also included repairs and insulation and electrical resistance measurements on eight heaters, servicing of seven pressure relief valves by a specialist supplier and surface refurbishment of four process vessels.
The refurbishment report lists 17 exchangers, mostly 800 mm in diameter and 5,800 mm long; one entry covers a 1,000 × 4,900 mm unit. Its hydrostatic test table records a test pressure of 10 barg and a 15-minute hold for all 17 entries. Shell-side and tube-side tests also located leaks; individual defective tubes were plugged at both ends.
Reassembly included replacement compressed non-asbestos fibre flange gaskets and expanded PTFE sealing strips. Repeat flushing and drying were followed by a polyurethane anti-corrosion coating. The report specifies two 60 µm coats, a total dry film thickness of 120 µm, in RAL 9006. New laser-engraved stainless steel identification plates were fitted.
The refurbished exchangers were prepared for transport with covered openings and secured in wooden frames. A separate documented piping stage from June 2021 is recorded in three packing lists under the common designation Shipment 03.
This dispatch stage covers stainless steel piping assemblies in DN 40–350, with stated wall thicknesses of 1–5 mm. The three packing lists total 11,120 kg net and 11,940 kg gross. These weights relate to this specific piping stage and do not represent the entire refurbished process plant.
Selected components underwent documented refurbishment, checks and preparation for transport. This case study covers those substantiated work packages and the piping dispatch stage; it does not claim completion or commissioning of the complete formalin plant.
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