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Durco® Mark 3 Group 4 ASME (ANSI) Chemical Process Pump
Durco® Mark 3 Group 4 ASME (ANSI) Chemical Process Pump Durco® Mark 3 Group 4 ASME (ANSI) Chemical Process Pump
Flowserve Chemical Process Pump Available to Order

Durco® Mark 3 Group 4 ASME (ANSI) Chemical Process Pump

The all new Durco Mark 3 Group 4 pump offers increased capacity with proven Durco performance and reliability along with ASME B73.1 design features. Offering flow rates to 3861 m3/h (17 000 US gpm) — well beyond ASME size limits — the Durco Mark 3 Group 4 is ideal for high-flow, high-head applications in the chemical processing and general industries.
Flow Rate Up To 3861 m³/h (17,000 gpm)
Head Up To 125 m
Max Pressure 19 bar (275 psi)
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🔧 NZ-based technical support 📄 Trade pricing on request 🕐 Quotes typically same day

Applications

  • Basic Chemicals (Organic & Inorganic)
  • Specialty Chemicals (Fine & Consumer)
  • Biofuels
  • Petrochemicals
  • Wastewater
  • Corn Wet Milling & Ethanol
  • Other Industries

Key Features

  • Temperatures from -73°C to 204°C (-100°F to 400°F); ductile iron: -29°C to 204°C (-20°F to 400°F)
  • Reverse vane impeller is the only impeller design that offers repeatable pump performance throughout the life of the pump. Open impellers available.
  • Durco SealSentry seal chambers feature flow modifiers that extend seal life by providing optimal seal chamber environments.
  • Standard sealed bearing housing with labyrinth bearing isolators to keep lubricant in and contaminants out.
  • Two-piece power end design with self-contained bearing housing reduces maintenance costs and facilitates predictive maintenance.
  • Heavy-duty radial and thrust bearings are selected for long life and reliability.
  • External micrometer impeller adjustment accurately sets impeller clearance in 20 seconds, simplifying maintenance.
  • Rugged shaft and bearing design extends seal life, bearing life and reduces shaft deflection and vibration.

Downloads

Durco® Mark 3 Group 4 ASME (ANSI) Chemical Process Pump Brochure PDF Durco® Mark 3 Group 4 ASME (ANSI) Chemical Process Pump Manual PDF

Technical specifications

View full specification table
Brand Durco®
Model Durco® Mark 3 Group 4 ASME (ANSI) Chemical Process Pump
Equipment Category Overhung Pumps

Frequently asked questions

What is the Durco Mark 3 Group 4 pump used for?
The Durco Mark 3 Group 4 is a high-capacity chemical process pump for high-flow, high-head duties in chemical processing and general industry.
Why does the Durco Mark 3 Group 4 use a reverse-vane impeller?
Its reverse-vane impeller is designed to provide repeatable pump performance throughout the pump’s service life. Open-impeller options are also available for suitable applications.
Is the impeller clearance adjustable?
Yes. An external micrometer adjustment allows impeller clearance to be set accurately in around 20 seconds, helping simplify routine maintenance.
What protects the bearings in a Durco Mark 3 Group 4 pump?
The pump has a sealed bearing housing with labyrinth bearing isolators to help retain lubricant and keep contaminants out.

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