Mechanical Seal API development
Aiming at the competitive import replacement of Mechanical Seals for pumps, manufactured in accordance with the API 682 standard, the genuinely Brazilian company MALAVAZI, with the support of the supply area of PETROBRAS, developed the first API seal with 100% national technology.
Resources were invested in the project in research, projects, construction of the prototype, in addition to the construction of an international standard laboratory with 4 test benches with real-time information and reports. The laboratory is equipped to test mechanical seals at temperatures up to 200°C and pressures up to 100 bar.
Main Points API Mechanical Seal
Compact: Even with the anti-disaster floating ring, the API Master seal has a lower axial length than the competition, in the same application, besides containing a smaller number of parts, compared to the others.
Simple: The API Master Seal has its parts easy to assemble without needing special care.
Efficient: Laboratory homologation tests with diesel and thermal oil showed lower fugitive emissions than allowed by the standard.
Safe: Its parts are robust, above the market average and all arrangements have an anti-disaster floating ring, preventing large leaks in case of accidents.
Technological innovation: The thermal expansion of the materials used in the sleeve and shaft has always been a big problem. Thus, Malavazi developed a special material with expansion 2 times less than the competition to avoid radial run-out due to the gap associated with the expansion.
The API 25 Mechanical Seals line has interchangeable parts, significantly reducing production costs.
Tested under severe conditions in a state-of-the-art laboratory. The results are surprising when compared
to other similar products on the market.
Since the initial design, the API 25 Mechanical Seal has been subjected to finite element calculations (FEA) and the results compared in laboratory tests.
The approval tests were supervised by Petrobras.
PRODUCT DEVELOPED WITH THE SUPPORT OF PETROBRAS, WITH COPYRIGHT RESERVED.