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Flowserve-Flowserve-Chemical Process Pumps - ANSI, ISO - Guardian Mag Drive

Durco Guardian Metallic, Magnetic Drive, ASME (ANSI) Chemical Process Pump

BRAND: Durco

Flowserve Durco Guardian sealless pump technology offers superior, leak-free performance in the most demanding services. Compliant with ASME (ANSI) B73.1-2001 dimensional standards, the Guardian magnetic drive pump is designed for simplicity and reliability in even the toughest emission-free services.


  • General Industry
  • Chemicals
  • Oil & Gas

industry sectors

  • Steel & Primary Metals
  • Other Industries
  • Basic (Organic & Inorganic)
  • Specialty (Fine & Consumer)
  • Biofuels
  • Pharmaceutical
  • Upstream Exploration & Production
  • Midstream Transportation
  • Downstream Processing
  • ASME (ANSI) B73.1 dimensional standards
  • ASME (ANSI) B73.3 sealless pump standards
  • HI 5.1-5.6
Operating Parameters
  • Flows to 375 m3/h (1650 gpm)
  • Heads to 215 m (700 ft)
  • Pressures to 24 bar (350 psi)
  • Temperatures from -75°C (-100°F) to 290°C (550°F)
Design Range

Size Range: Sizes from 25 mm (1 in) to 100 mm (4 in)

Features & Benefits
  • Metallic sealless magnetic drive pump compliant with ASME B73.1, ASME B73.3 and HI 5.1-5.6 that is designed for applications requiring efficient performance and emissions-free reliability.
  • Optimal performance through a highly engineered internal lubrication flow paths designed to maximize cooling of the bushings and journals
  • Ease of maintenance due to standard and contained back pullout, allowing the casing to stay in-line and piping connections to remain intact
  • Higher process temperature range capabilities with the use of strong samarium cobalt rare earth magnets in the couplings
  • Longer service life resulting from silicon carbide bushings and journals that resist wear and corrosion


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