More than 20 years JSC Plakart specializes in the application of gas-thermal methods for applying special anti-corrosion coatings on metal surfaces, which make it possible to extend the life of process equipment. Hard-alloy protective coatings have essential advantages in comparison with galvanic chromium plating. These advantages allow to reduce cost of production and service and also to increase reliability of work submersible and other types of the equipment applied to oil and gas production.
Oil and Gas
Installation of oil refining, desulphurization absorbers exposed to chloride and hydrogen sulphide corrosion in the refining process, and during steaming, and repair. Developed, patented and sprayed by JSC "Plakart" metal protective coatings have proven to be a reliable means of long-term protection of the internal surfaces of vessels under oil refining pressure from corrosion wear.
Restoring the geometry of the working surface of slide and ball valves and saddles. Hardening, protection against wear and corrosion.
Hardening of working surfaces in the manufacture of new parts ZRA HVOF-high-speed flame spraying.
JSC Plakart performs repair of cylinders, hydraulic cylinder rods using high-speed carbide coating. The technology of repairing the rod involves removing the old chrome coating, applying a new layer by high-speed spraying and further grinding and polishing up to grade 12 of purity. Depending on customer needs, we can offer.
The thickness of the sprayed babbit layer can be from 1.5 to 30 mm, the recommended thickness for the production of bearings - from 2 mm. Obviously, spraying a new babbit costs somewhat more than refilling the old one.
The assets of the company "Plakart" hundreds of sprayed bearings and several turnkey spraying systems. Contact our regional centers for babbit spraying.
Metallic chimneys and exhaust shafts of boiler and gas pumping plants are very difficult to protect against corrosion with lacquer or polymer compositions: temperature drops up to 600oC quickly burn protective coatings and leave the pipe unprotected against corrosion. Spraying aluminum-containing protective coating can solve the problem of protecting the chimney from corrosion for 15-20 years.
Cavitation-resistant coatings for impellers of centrifugal pumps - gas-thermal spraying, equipment and technology. Wear and cavitation of the impellers leads to increased power consumption, lower pressure at the outlet, more frequent repairs. Coatings provide a higher service life and energy saving.
Wear-resistant electrical insulation coatings provide dielectric properties of products even in conditions of very strong abrasive and hydroabrasive wear.
The replacement of galvanic chrome plating of ball valves with high-speed flame spraying of nickel and cobalt-based alloys is the result of the development of the 1990s, which became the de facto standard in the production of modern valves and fittings in Europe and the USA.
Corrosion under insulation, or underfilm corrosion, is one of the most dangerous threats to pipelines due to the complexity of detection and the speed of development.
Wear-resistant, corrosion-resistant heat-resistant internal coatings for gas flues. Alitizing by metallization of the internal surfaces of gas flues by flame spraying aluminum. Coatings withstand temperatures up to 800oC, work in vapors of sulfuric acid.
Installations of atmospheric-vacuum distillation of oil, such as ELOU AVT-6, etc., are the head installations for oil refining at all refineries. Since they process almost all the oil coming to the refinery, its reliable and stable operation is extremely important for the success of the entire refinery. The shaft of the smoke exhauster is used to remove gaseous products during oil refining.
Lacquer coating does not provide reliable and durable protection against corrosion and wear in the marine environment. The combined coating SPRAMET-300 on the basis of zinc-aluminum guarantees protection against the appearance of traces of corrosion for more than 20 years.
Gas-thermal spraying of monel-metal is performed after complete assembly of the apparatus, possibly even at the place of operation. Sprayed Monel is not subject to underfilm corrosion, protects welds. We use in bimetallic apparatus of the column type: absorbers, adsorbers, desorbers, stabilizers, evaporators.
Rods of compressors are operated in the conditions of continuous production, sometimes in aggressive environments, therefore the working surfaces of the rods are nitrided or with the use of coatings.
Chemical resistant solid anti-corrosion coating for containers. Protection against chemical corrosion by spraying aluminum and zinc coatings. There are often situations when corrosion becomes a serious problem for equipment operation. Even small chemical impurities often cause rapid corrosion of the unprotected metal.
Protection against erosive and corrosion wear of installation of amine purification of natural gas against H2S. The share of hydrogen sulfide in the produced gas is 26-28%.
The extension of the life of tube sheets of heat exchangers is achieved by protecting the surface of the tube sheet against corrosion by the method of flame spraying metal or stainless steel alloys. The choice of spraying material is made depending on the aggressiveness of the environment, the complexity and the cost of replacing the equipment. The process of corrosion of pipe boards stops completely or significantly slows down, reducing to a much slower corrosion of the coating.
Chemical resistant solid anti-corrosion coatings for containers and reservoirs. Protection against chemical corrosion by spraying aluminum and zinc thermal spray coatings
Anti- corrosion and wear surface protection: submersible electric motors (SEM), electrical submersible centrifugal pump (ESCP), the columned equipment, the gas-compressor units, tanks, working parts of locking- regulating fittings. Working life increase of rods, plungers, bushings.