Technical bulletin for the Flowserve Durco Mark 3 family of ANSI chemical process pumps, covering configurations, performance curves, features, and parts…
This document serves as a technical bulletin for the Flowserve Durco Mark 3 family of ANSI chemical process pumps. It details various pump configurations including Standard, Lo-Flo, Sealmatic, Self-Primer, and Recessed Impeller models intended for use in industrial applications such as petrochemical processing and wastewater treatment.
The bulletin provides comprehensive information on pump performance curves, design features like the SealSentry seal chambers and reverse vane impellers, and parts interchangeability across different Mark 3 Standard groups. It also covers complementary pumps within the Flowserve portfolio.
| Maximum Flow Rate | 4540 m3/h (20,000 US gpm) |
|---|---|
| Maximum Head | 215 m (700 ft) |
| Maximum Pressure | 27 bar (400 psi) |
| Operating Temperature Range | -73°C (-100°F) to 370°C (700°F) |
| Maximum Speed | 1450 RPM |
The Mark 3 standard pump conforms to ANSI B73.1.
It uses a Unique Reverse Vane Impeller which offers repeatable pump performance throughout the life of the pump.
SealSentry seal chambers feature unique flow modifiers to extend seal life and provide advanced self-flushing capability.