Sulphuric Acid Plant Concrete Slab Repairs
Deteriorated concrete beneath fibreglass lining Jack hammer used to remove debris Core drilling samples taken to assess extent of concrete damage Completed with anti slip OVERVIEW: Sulphuric Acid caused deterioration of the existing fiberglass matting. The failure of the previous fiberglass lining had enabled permeation, allowing serious corrosion of the concrete slab. The Chem-tect™ system […]
Apply Coating on Wet Surfaces using RL 500PF
Column prior to start & partially lagged Unlagged cold zone Unlagged corroded zone near top Maintenance painting completed whilst in service OVERVIEW: Wet and Cold Column Externals in this petrochemical plant were partially lagged. With the vessel in service, the surface temperatures were -5°C to 25°C, causing the substrate to sweat heavily during surface […]
Chem-tect™ RA 300 for Stainless Steel Agitator shaft
On arrival Stainless Steel Agitator Close up illustrating chemical resistant cloth application Final coat applied ready for post cure and packaging for return transport OVERVIEW: The Stainless Steel Agitator shaft in an Ambient temperature high range pH mixing tank required application of a high temperature and chemically resistant coating system in a very fast […]
Cold & Wet Pipe Externals
Before – Ammonia Bullet Pipelines After – Coated Pipework OVERVIEW: The ammonia lines had been in service since the plant was built. This has caused severe external corrosion caused holes to form in the pipe and there were no spare lines for the plant to be shutdown. Very expensive pipe sealing clamps were in […]
Chiller
OVERVIEW: Tube sheets of this chiller were severely corroded due to a galvanic reaction between dissimilar metals. There was also severe pitting corrosion on sealing faces. A 72 hour shutdown period was utilised to complete the work with the tube internals were protected from abrasive blasting damage by inserting specially designed plastic caps. INDUSTRY […]
RB 300 series for Cooling Water Systems
Condenser waterbox treated in workshop Tubesheet on arrival and rubber bungs installed Tubesheet on completion OVERVIEW: The cooling water system’s tube sheets, internals and sealing faces were suffering severe pitting corrosion due to a galvanic reaction between dissimilar metals. The Chem-tect™ RB 300 series was used to protect against sea water at temoeratures of […]
End Covers
Baffle plate between inlet and outlet lower than the sealing face Sealing face built up to allow flat sanding to required height Return cover after machining Rebates filled with RB 332 OVERVIEW: The Floating heads and channel end covers were originally coated by another contractor with varying results. Made from exotic materials, they had […]
Column Pump Repairs
Pitting and erosion in the wear spacer ring/housing 3rd coat complete Finishing touches ready for packaging OVERVIEW: The refinery column pump for storm water and effluent required repairs and surface coating to protect from corrosion. Corrosion pitting and erosion was evident in the suction bell & adjoining column and the wear spacer ring/housing. We […]
