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The Barmesa 911 Series: A Masterclass in Hydraulic Engineering

The Barmesa 911 Series is defined by its meticulous construction and the high-grade materials used in every component. Designed for horizontal suction and vertical discharge, this centrifugal pump series is the result of continuous inspection and a "quality-first" manufacturing process. Every unit is crafted to ensure that with proper installation and periodic monitoring, the pump provides a satisfying and lasting service life, even under the most punishing operating conditions.

Structural Integrity and Material Science

To survive the diverse chemistry of modern industry, the 911 Series is constructed with extra-heavy castings that feature a greater wall thickness than conventional pumps. This added mass provides a rigid foundation that resists slippage and distortion from piping loads, ensuring that internal alignments remain true over years of service. For chemical compatibility, the series utilizes a range of materials: Ductile Iron for standard applications, 316 Stainless Steel for corrosive environments, and CD4MCu (Duplex Stainless Steel) for applications requiring extreme strength and resistance to both corrosion and abrasion.

Hydraulic Performance and Sealing Flexibility

The fully open impeller design is the industry standard for handling solids, fibrous materials, and corrosive slurries. The impeller is threaded to the drive shaft and isolated from the pumped fluid by a Teflon ring, ensuring the threads remain clean and easy to disassemble during maintenance. Integrated back pump-out vanes reduce hydraulic loads and back pressure in the seal chamber, which is essential for maximizing the lifespan of the mechanical seal.

Because the mechanical seal is the most frequent point of failure in any process pump, the 911 Series offers unmatched sealing flexibility. The oversized seal plates are designed to accommodate a variety of cooling plans and seal configurations, including: