Durco (Flowserve)

Durco Pumps at Siewert Equipment

ANSI-Certified Centrifugal Pumps for Aggressive Fluid Handling

Engineered for Harsh Chemical & Industrial Environments

Durco ANSI pumps are designed with corrosion-resistant materials, thick casing walls, and precision components to handle the toughest fluids under harsh operating conditions. Their modular construction and wide material availability make them ideal for chemical processing, wastewater treatment, and general industrial applications.

With exceptional mechanical reliability and proven hydraulic performance, Durco pumps are an industry benchmark in ANSI process pump design.

Industries & Applications

  • Chemical Processing
  • Pulp & Paper
  • Petrochemical
  • General Industrial Manufacturing
  • Water & Wastewater Treatment
  • Food & Beverage
  • Pharmaceutical
  • Steel & Metal Processing

Why Choose Durco Pumps from Siewert Equipment?

  • Authorized Flowserve/Durco distributor in Upstate NY
  • Application expertise in corrosive and high-temp fluid handling
  • Support with pump selection, installation, and maintenance
  • Access to OEM parts and fast lead times
  • Local field service and performance troubleshooting

Durco Product Offerings

Durco Mark 3™ ANSI Process Pumps

  • Complies with ANSI B73.1 dimensional standards
  • Back pull-out design for simplified maintenance
  • Interchangeable parts across pump sizes
  • Available in a wide range of alloys (316SS, Alloy 20, Hastelloy, etc.)
  • Precision impeller design for optimized hydraulic performance

Durco Mark 3 ISO and Close-Coupled Variants

  • Available in both frame-mounted and close-coupled designs
  • Ideal for space-constrained applications
  • Meets international standards for global operations

Recessed Impeller & Vortex Options

  • Handles solids-laden or shear-sensitive fluids
  • Reduced clogging and wear in slurry applications

Sealing Options

  • Wide selection of mechanical seals and sealing plans
  • API flush plans available
  • Compatible with Flowserve’s wide seal portfolio

What Is an ANSI End Suction Pump?

An ANSI centrifugal pump is a horizontal, end suction, single-stage pump built to the ANSI B73.1 standard—ensuring dimensional consistency across manufacturers. These pumps are designed for chemical processing environments and offer easy interchangeability, simplified maintenance, and robust performance for a variety of fluid types. Durco’s ANSI pumps are industry-leading for reliability and corrosive fluid handling.

Full-Service Support from Siewert Equipment

✔ Pump system evaluation and specification assistance
✔ Performance optimization and energy savings
✔ Installation support and alignment services
✔ Maintenance, repair, and OEM part sourcing
✔ Emergency field service and troubleshooting

Proudly serving Rochester, Syracuse, Buffalo, Albany, and all of Upstate NY.

FAQ: Durco ANSI Pumps & Applications

What makes Durco pumps ANSI-compliant?

  • Durco Mark 3 pumps conform to ANSI B73.1 standards for dimensional consistency, allowing for drop-in replacement and simplified design integration.

Can Durco pumps handle high temperatures and pressures?

  • Yes. Durco pumps are designed for chemical processing and are available in high-temp configurations with appropriate materials and seals.

What materials are available?

  • Common options include 316SS, Alloy 20, Hastelloy C, Duplex stainless steel, and other corrosion-resistant alloys.

Are these pumps suitable for slurry or abrasive fluids?

  • Yes. Vortex and recessed impeller configurations are available for abrasive and solids-laden fluids.

How easy is maintenance on a Durco ANSI pump?

  • The back pull-out design allows for easy access to rotating components without disturbing piping or motor alignment.

Do I need a specific baseplate or motor?

  • Siewert Equipment can provide compatible motors and baseplates to match your Durco pump with proper alignment and system design.

Are parts interchangeable across pump sizes?

  • Yes. Many Durco Mark 3 parts are interchangeable, reducing spare part inventory requirements.

Can I retrofit my existing ANSI pump with a Durco?

  • Yes. Thanks to standard ANSI dimensions, Durco pumps can be used as direct replacements in most ANSI-compliant systems.

What sealing options are available?

  • A wide variety of Flowserve mechanical seals, seal flush plans, and API configurations are available depending on the fluid and operating environment.

Does Siewert Equipment offer repair services?

  • Yes. Siewert offers full repair, testing, and OEM parts support for Durco pumps, including in-shop and field service.

Your Local Durco Pump Experts in Upstate NY

Siewert Equipment is your go-to partner for Flowserve Durco ANSI process pumps in Upstate New York. Whether you’re handling harsh chemicals, abrasive slurries, or general process fluids, we provide the selection, service, and support to keep your operations running at peak performance.

  • New York (serving all Upstate NY) through Siewert Equipment, with offices in Rochester, and Albany.

Ready to Specify a Durco ANSI Pump?

Contact Siewert Equipment today for help with sizing, selection, or replacement of your existing ANSI process pump. Our team ensures you get the right pump for the job—efficiently and reliably.

Durco ANSI Pumps: Trusted by Industry Leaders for a Reason

Flowserve Durco pumps are engineered for endurance in the harshest environments. Trust Siewert Equipment for application guidance, responsive support, and local expertise in ANSI pump systems.

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