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WMCA-ISO Alloy Centrifugal Mag-Drive Seal-less Pumps

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Series ISO-2858
Process Horizontal, End Suction

Warrender WMCA ISO-2858 alloy centrifugal process pumps program (superseding the MCA) is a culmination of 30 years of research, engineering, product development and manufacturing technology. The WMCA designs are the benchmark for heavy-duty seal-less process pumps offering the utmost in versatility and reliability in the most arduous applications.

Particularly suited to pump liquids in any industrial field:
Chemical, Petrochemicals, Pharmaceutical, Paper mills, textiles industry, food processing, sugar plants, dairies, electronics, water treatment or any hazardous chemical application.


  • Casing built with heavy wall thicknesses; Flanges machined to 150 lb. or 300 lb. R.F. ANSI configurations
  • The standard one piece Hastelloy-C276 containment housing exceeds ASME pressure vessel codes; rated for 350 PSI working pressures with capabilities to 1500 PSI
  • External lubrication maintains highest pressure differential, enabling dead-head operation.
  • Backed by silicon carbide thrust bearings, impeller pump-out vanes balance axial thrust
  • Quick-change rear cartridge assembly (a WMCA standard) allows for replacement and restart-up within 10 minutes
  • Dual back-pull-out design or services either hydraulic end or ball bearing assembly

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Technical Data
  • Flow: 8-4500 GPM (2-1000 m³/H)
  • Head: To 700 feet (213 m)
  • Temperature Ratings: -248 to 600°F (-150 to 315°C)
  • Pressure ratings: 350 PSI (24 Bar) )


  • AISI 316 or SS 316L, Cast steel WCB (casing and Impeller only), Alloy 20, Monel-400, Hastelloy B or C-276


wmca 3500 rpm curves3500 RPM Curves

wmca 1750 rpm curves1750 RPM Curves

drawingDimensional Drawing

wmca iomIOM Manual

brochureWMCA Brochure /

** Also see the Seal-less Mag Drive with Pressure Ratings

data sheetData Sheet

Replacement Parts:

Rear Wet End Kits, Shaft, Sleeve & Thrust Bearings, Impeller & Casing wear Rings, Internal Magnets, Casing Gaskets, Power/ Bearing Frame Components