Durco Mark 3 Metallic, Sealed, ASME (ANSI) Chemical Process Pump

Brand: Flowserve Durco

Conforming to ASME (ANSI) B73.1, Durco Mark 3 pumps incorporate many proven reliability- and performance-enhancing features.

They are available in a wide range of configurations, including mechanically sealed, dynamically sealed, sealless magnetically driven, low-flow, self-priming and recessed impeller.

It provides flexibility and breadth of pumping solutions in countless applications.
  • Lower total cost of ownership from reverse vane impeller, which eases maintenance and provides renewable, high-efficiency performance over the pumps’ life
  • Increased reliability and mechanical seal life due to the ideal seal environment created by the SealSentry seal chamber
  • Ease of maintenance resulting from optimal, predictable seal chamber pressures that are re-established after every impeller setting
  • Extended mechanical seal and bearing life through robust shaft and bearing designs that also minimize shaft deflection
  • Fast and accurate impeller setting with the industry’s most innovative external impeller adjustment mechanism
  • In-shop reverse vane impeller adjustment with the only pump that takes full advantage of the back pull-out design


Durco Mark 3 ASME In-Line - Vertical Orientation

  • The Durco Mark 3 In-Line Pump Exceeds ANSI B73.2M Design Criteria. This Space-saving Design Utilizes the Industry-leading Mark 3A Power End & Other Mark 3 Advanced Features for Max.

Durco Mark 3 ASME Lo-Flo - Low Flow & High Head

  • The Durco Mark 3 Lo-Flo Pump is Designed to Improve Pump Reliability & Performance in Low-flow, High-head Applications. Its Innovative Radial Vane Impeller & Circular, Concentric Casing Was Developed to Reduce Radial Loads & Shaft Vibration While Extendin

Durco Mark 3 Group 4 - Above ASME Flows & Heads

  • Designed to Complement the Durco Mark 3 ANSI Pump Product Line, the New Mark 3 Group 4 Design Offers Flow Rates to 4540 m³/hour (20,000 US gpm), Well Beyond Traditional ANSI Sizes. Outside the Scope of the ANSI Performance & Dimensional Requirements, the

Durco Mark 3 Recessed Impeller - Vortex Solids Handling

  • The Durco Mark 3 Recessed Impeller Pump Combines the Best Design Features of the Mark 3 ANSI Standard Pump with the Vortex Action of a Recessed Impeller.

Durco Mark 3 Sealmatic Pump

  • TheDurco Mark 3 Sealmatic Pump Uses A Dynamically Sealing Repeller to Eliminate the Need for Mechanical Seals in Tough to Seal Services. This Pump Conforms to ANSI B73.1M Standards & is Completely Interchangeable with the Industry Leading Mark 3A Power En

Durco Mark 3 Unitized Self Primer - Suction Lift

  • The Durco Mark 3 Unitized Self-Priming Pump is Engineered to Draw from Liquid Sources Below Ground Level or from Sources that have No Positive Pressure to Naturally Prime the Pump.

Operating Parameters

  • Flows to 4540 m³/hour (20,000 gpm)
  • Heads to 215 m (700 ft)
  • Pressures to 27 bar (400 psi)
  • Temperatures from -75° C (-100° F) to 370° C (700° F)

Size Range

  • Sizes from 25 mm (1”) to 200 mm (8”)

  • Acid Transfer
  • Brine
  • Chemical Processing
  • Petrochemical Processing
  • Corrosive Services
  • Food and Beverage Processing
  • Hydrocarbon Processing
  • Pharmaceuticals
  • Pulp and Paper
  • Sea Water
  • Slurries
  • Solvents
  • Steel and Primary Metals
  • Water and Wastewater Treatment

show more