FBU Successfully Delivers Type GDMA Seal for Goulds® pump

A large-scale BDO chemical plant has successfully completed the upgrade and transformation of the mechanical sealing systems for over 300 GOULDS® process pumps. The project involved the gradual replacement of previously used John Crane® 5620/5610 series seals with the independently developed GDMA series mechanical seals by FBU. The adopted GDMA sealing solution features an advanced integrated structure and specialized material formulation, allowing direct installation and use without any modifications to the existing pump bodies while maintaining full compatibility with the original installation dimensions. It is particularly noteworthy that this series of seals has been specifically optimized for the unique properties of media in the BDO production process, such as crystallization-prone and corrosive conditions.

Through thorough pilot testing, the GDMA seals demonstrated excellent performance in operational reliability, service life, and adaptability to working conditions. The entire replacement project was completed successfully over several months, significantly reducing equipment maintenance costs, effectively minimizing unplanned downtime, and greatly enhancing operational efficiency. Additionally, FBU's localized technical services ensured rapid response and stable supply chain support.

This successful replacement case fully exemplifies FBU's technical expertise and product advantages in the field of mechanical seals, providing a high-quality demonstration for the chemical industry in replacing imported brands with domestically produced high-end sealing products. It showcases the exceptional quality and technological innovation of Chinese manufacturing in high-end industrial sectors.

Operating parameters of GDMA

Temperature	Pressure	Speed	Material
-20~160℃	≤25bar	≤20m/s	316SS,Duplex,Alloy20,Hast.C276,Titanium,Zirconium etc.

GDMA Sealing suitable for ANSI standard chambers.Complies with ASME B73.1 and B73.2 standard pump chamber dimensions.Modular containerized design, equipped with flushing holes and rapid cooling blowing ports.Dimensions range from 1.375 "to 3.625" (34.9mm to 66.67mm).

FBU Successfully Delivers Type GDMA Seal for Goulds pump.pdf