PACO Vertical Space Miser Pumps: VSM, VSMS




Type VSM (Close Coupled)

Type VSMS (Split Coupled)


** Introducing NEMA TC frame motors on PACO VSMS pumps **

  • Significantly Improved Lead Time
  • Increased Ease of Service
  • Greater Customer Value


Small footprint for tight spaces

  • Vertically mounted top suction/top discharge pump fits where many pumps won’t.

Simplified installation

  • Same-size suction and discharge connections simplify piping.
  • VSM/VSMS pumps don’t require grouting.

Low life cost

  • Contoured suction baffle provides laminar flow to impeller.
  • Suction and discharge bends, eliminating the need for suction diffusers, angle type valves and/or elbows, which improves overall system efficiency.
  • Short shaft with minimum overhang reduces shaft deflection and improves bearing and me­chanical seal life.

Easier service

  • Top pull out design allows rotating assembly to be removed without disturbing the volute or piping for ease of maintenance and service.


  • Double volute design helps to reduce radial thrust and prolong seal life.
  • Ductile iron construction provides the highest nozzle load in the industry.

Product range

  • Sizes 4” to 10”
  • Flows up to 4100 GPM
  • Heads up to 400 feet
  • Horsepower up to 125 hp
  • Fluid temp up to 275°F


  • Chilled Water
  • Condensed Water
  • Hot Water
  • Service Water
  • District Heating Systems
  • Pressure Boosting
  • Water Utility

Features and benefits

  • Volute flanges allow for vertical piping – no need for horizontal suction pipe runs, elbows, suction guides, or discharge elbows
  • Double Volute – extends seal and bearing life, minimizes noise and vibration, & improves operating efficiency
  • Spacer coupling on Type VSMS allows easy disassembling and replacement of mechanical seal without removing motor - minimal downtime and reduced maintenance cost
  • Axially split coupling on Type VSMS enhances ease of service and alignment
  • Ductile Iron Pump Stand – no grouting requirements and minimal footprint
  • Heavy Duty Cast & Machined Motor Bracket – rigid and reliable mounting surface with easy alignment
  • Case Wear Rings – reduce maintenance costs and maintain high efficiencies
  • Francis Vane Impeller Design – increases efficiency and reduces NPSH required
  • Trimmed and Balanced Impellers – customization, reduced noise and vibration, & prolonged seal and bearing life
  • Shaft Sleeves –extend life of shaft and usable life of pump


  • No need for horizontal suction pipe runs
  • Extended seal and bearing life
  • Ductile Iron Pump Stand – no grouting requirements and minimal footprint




Product Brochure

Type VSM/VSMS Vertical Space Miser Pumps Close and Split Coupled

CBS Brochure

Sales Brochure

Sustainable Solutions for the Commercial Building Industry


Sales Brochure

NEMA TC Frame Motors on PACO VLS and VSMS Pumps

PACO VSM/VSMS Product Flyer

Product Flyer


Download PDF

252 KB - 2 Pages

VSMS Product Flyer

Product Flyer


Download PDF

214 KB - 2 Pages

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