AQU Close-Coupled End Suction Pumps

The AQU close-coupled end suction product line is one of the most common centrifugal pumps used in the industry today. This robust and highly engineered product has many upgraded features and benefits that are optional on other competitor offerings. This product line is very versatile and is used in a variety of markets. Whether you are pumping clean water, high temperature condensate or raw water, the AQU product line is up to the task. Due to the flexibility of this product line, HVAC & building trades markets are perfect matches for this product line. Each model features 250# cast dimensional flanges, integral suction vortex suppressor, 420 stainless steel shafting and investment cast 304 stainless steel impeller. The CPS-Pumps product line uses an exclusive design that allows for easy coupling to a stocked, standard C-face motor.

AQU Close-Coupled End Suction Pumps

Flow & Pressure Characteristics

Flows To: 9,000 GPM (2,440 m³/hr)
Heads To: 450 Feet (140 m)
Temperatures To: 250ºF (121ºC)
Speed Ranges: 900 RPM To 3600 RPM

Size Range

1.25×2-5 (32/13) – 12×14-16 (300/40)

Features & Benefits

  • Cast iron casing/investment cast 304 stainless steel impeller
  • Back pump out vanes or rear wear ring standard for hydraulic balancing
  • Back pull out rotor assembly design
  • Standard bronze, renewable case wear ring
  • Internal plan 1 seal/packing flush
  • Mechanical seal standard with packing & lantern ring as an option
  • Francis, enclosed, high efficiency impeller with broad band operating range
  • 125# suction/125# discharge flange with 250# cast dimensions standard
  • Drilled & tapped suction & discharge flanges for easy connection to system piping
  • Suction & discharge gauge connections standard
  • Turned, ground and polished 420 stainless steel shaft standard
  • Utilizes, stocked, standard C-Face motors
  • 56C through 449TC brackets for coupling to drivers

Available Metallurgies

  • Cast iron, ductile iron, all bronze, 304 stainless steel fitted, 316 stainless steel fitted


  • Aerospace
  • Build Trades
  • Chemical Processing
  • Food & Beverage
  • General Industry
  • Irrigation & Agriculture
  • Marine & Offshore
  • Mining & Aggregate
  • Power Generation
  • Oil & Gas
  • Pharmaceutical
  • Pulp & Paper
  • Semiconductor
  • Water Resources