Grundfos Vertical Suction Pump: PACO Type VSM Close Coupled, PACO Type VSMS Split Coupled

Grundfos Vertical Suction Pump: PACO Type VSM Close Coupled, PACO Type VSMS Split Coupled

Compact, Vertical Suction Pump

Type VSM (Close Coupled)
Type VSMS (Split Coupled)

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.

Reliability

• 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

Applications

• Cooling and refrigeration

• Condensed water

• Hot water

• Process water

• Heating systems

• Pressure boosting

• Water utility

Features & 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

• Type VSMS – spacer coupling allows easy disassembling and replacement of mechanical seal without removing motor

• 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

VSM, VSMS Brochure