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Durco Mark 3 Unitized Self-Priming Chemical Process Pump for sump and below-grade fluid transfer

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Durco Mark 3 Unitized Self-Priming Chemical Process Pump for sump and below-grade fluid transfer

Durco Mark 3 Unitized Self-Primer

Brand: Durco
Description:

The Durco Mark 3 Unitized Self-Priming Pump is engineered to draw from liquid sources below ground level or from sources where standard centrifugal pumps lose prime. Designed to handle corrosive, toxic, or abrasive fluids, this pump integrates ANSI B73.1M dimensions with a self-priming casing, eliminating the need for external priming systems.

Ideal for sumps, tanks, or below-grade installations, it provides reliable operation with fast, repeatable priming—even under demanding conditions.

Mark 3 Unitized Self-Primer Applications:

Gas Treating and Sulfur Recovery, Slurry Processing, Polymers, Agriculture, HVAC, Waste Processing, Automotive, Heavy Oil, Oil Sands and Shale, Water Supply and Distribution (water), Auxiliary (chemical), Hydraulic Press (metals), Water Supply and Treatment (oil and gas), Solvents, Auxiliary Services (power), LNG, Bleach Chemical (pulp and paper), Leaching Acid, Chemical and Liquor (pulp and paper), Acid Transfer, Coatings (pulp and paper), Nuclear Service, Construction, OEM, Cooling Water (metals), Offsites and Waste Treatment, Caustic and Chlor-alkali, Pharmaceuticals, Dewatering and Water Supply (mining), Plating, Galvanizing and Other Coatings, Drilling and Production, Renewable Fuel Production, Water Treatment, Electronics, Sewage Collection and Treatment, FPSO, Shipping, Food Processing, Volatile Organic Compounds

Industries:
Chemical Processing, General Industries, Mining, Water Resources, Power Generation, Primary Metals, Pulp and Paper, Oil and Gas

Standards:
ASME (ANSI)

External Micrometer Impeller Adjustment accurately sets impeller clearance in 20 seconds, in the shop or the field.

Standard Reverse Vane Impeller offers repeatable pump performance throughout the life of the pump.

Unitized Casing has large priming chamber, air separator and volute in one integral component.

Large Shaft and Bearing Components extend bearing life and reduce shaft deflection and vibration.

Features:

  • Offered in a wide range of metallurgy
  • Reverse Vane Impeller
    • Low, predictable seal chamber pressures
    • Low required NPSH
    • Rear cover wear surface
    • In-shop impeller adjustment
    • Repeatable performance assurance
  • ANSI 3A Power End
    • Certified clean rooom assembly
    • Inpro/Seal’s VBX isolators
    • Magnetic drain plug
    • Synthetic oil bath, oil mist, shielded, grease-lube

Operating Parameters

  • Flows to 320 m3/h (1400 gpm)
  • Heads to 120 m (400 ft)
  • Pressures to 20 bar (285 psi)
  • Temperatures to 370°C (700°F)
  • Static suction lift to 6 m (20 ft)

Flowserve Durco® Pump Maintenance Packs A&B

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Transfer corrosive fluids from sumps or below-grade tanks with confidence using the Durco Mark 3 Unitized Self-Priming Pump. Contact us today for sizing, materials, and application support.