PUMP CONNECTORS

Suction Diffuser Flex

Reduces turbulence at the pump...measurably improves pump performance

Go to Suction Diffuser Flex size charts and 3D Revit/CAD drawings

How it works

The Suction Diffuser Flex Technology consists of a specially designed set of stationary vanes placed upstream of an elbow. The Suction Diffuser Flex imparts to the fluid a gyroscopic motion, which counteracts the elbow induced motion, enabling the fluid to negotiate the turn uniformly and exit with a flat velocity profile.

The Suction Diffuser Flex offers:

  • Guaranteed measurable improved pump performance
  • Reduced pump vibration and wear, maximizing pump operating life and helping reduce pump maintenance
  • Increased pump efficiency
  • Increased flow rate

Suction Diffuser vs. the Energy efficient SUCTION DIFFUSER FLEX
Pressure drop is the resistance to flow as a liquid moves thru a pipe. It is caused by the viscous shear within the liquid and turbulence along pipe walls. The more the pressure drop the more energy is consumed to overcome it.

The Suction Diffuser Flex is far more efficient compared to a suction diffuser!

Pressure Drop (Equivalent Feet of Pipe)

PIPE SIZE SUCTION DIFFUSER (TYPICAL) SUCTION DIFFUSER FLEX* LONG R
ELBOW
SHORT R
ELBOW
2-1/2 17 ft 2.38 ft 3.29 ft 6.17
3 26 2.45 4.09 7.67
4 31 2.58 5.37 10.10
6 45 3.33 8.09 15.2
8 78 3.73 10.60 20.0

*Includes the pressure drop through the Flex!!

Double Suction Centrifugal Pump Test Results
Flow rate, head and efficiency are improved. The pumps power requirements are reduced.

Centrifugal Pump Test Results

Click the links below to jump to a particular product info table.

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Suction Diffuser Flex with Groove End X 150# Plate Flange for Connecting
to a S.R. Elbow

Model No. Size OAL Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFSGF0200 2 11.75 .375" .125" 455 Revit/CAD
SDFSGF0250 2.5 11.75 .375" .125" 345 Revit/CAD
SDFSGF0300 3 11.75 .375" .125" 289 Revit/CAD
SDFSGF0400 4 11.75 .375" .125" 300 Revit/CAD
SDFSGF0500 5 13.50 .375" .125" 220 Revit/CAD
SDFSGF0600 6 13.50 .375" .125" 200 Revit/CAD
SDFSGF0800 8 15.25 .375" .125" 190 Revit/CAD
SDFSGF1000 10 16.25 .375" .125" 150 Revit/CAD
SDFSGF1200 12 17.25 .375" .125" 125 Revit/CAD
SDFSGF1400 14 17.25 .375" .125" 105 Revit/CAD

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Suction Diffuser Flex with 150# Plate Flanges and Concentric Reducer for Connecting to a S.R. Elbow

Model No. Size OAL Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFSR2502 2.5 x 2 12.25 .375" .125" 345 Revit/CAD
SDFSR0302 3 x 2 12.25 .375" .125" 289 Revit/CAD
SDFSR0325 3 x 2.5 12.25 .375" .125" 289 Revit/CAD
SDFSR0402 4 x 2 12.75 .375" .125" 300 Revit/CAD
SDFSR0425 4 x 2.5 12.75 .375" .125" 300 Revit/CAD
SDFSR0403 4 x 3 12.75 .375" .125" 300 Revit/CAD
SDFSR0525 5 x 2.5 15.75 .375" .125" 220 Revit/CAD
SDFSR0503 5 x 3 15.75 .375" .125" 220 Revit/CAD
SDFSR0504 5 x 4 15.75 .375" .125" 220 Revit/CAD
SDFSR0603 6 x 3 16.25 .375" .125" 200 Revit/CAD
SDFSR0604 6 x 4 16.25 .375" .125" 200 Revit/CAD
SDFSR0605 6 x 5 16.25 .375" .125" 200 Revit/CAD
SDFSR0804 8 x 4 17.50 .375" .125" 190 Revit/CAD
SDFSR0805 8 x 5 17.50 .375" .125" 190 Revit/CAD
SDFSR0806 8 x 6 17.50 .375" .125" 190 Revit/CAD
SDFSR1006 10 x 6 19.50 .375" .125" 150 Revit/CAD
SDFSR1008 10 x 8 19.50 .375" .125" 150 Revit/CAD
SDFSR1210 12 x 10 21.50 .375" .125" 125 Revit/CAD

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Suction Diffuser Flex with 150# Plate Flanges and Concentric Reducer for Connecting to a L.R. Elbow

Model No. Size OAL Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFLR2502 2.5 x 2 12.25 .375" .125" 345 Revit/CAD
SDFLR0302 3 x 2 12.25 .375" .125" 289 Revit/CAD
SDFLR0325 3 x 2.5 12.25 .375" .125" 289 Revit/CAD
SDFLR0402 4 x 2 12.75 .375" .125" 300 Revit/CAD
SDFLR0425 4 x 2.5 12.75 .375" .125" 300 Revit/CAD
SDFLR0403 4 x 3 12.75 .375" .125" 300 Revit/CAD
SDFLR0525 5 x 2.5 15.75 .375" .125" 220 Revit/CAD
SDFLR0503 5 x 3 15.75 .375" .125" 220 Revit/CAD
SDFLR0504 5 x 4 15.75 .375" .125" 220 Revit/CAD
SDFLR0603 6 x 3 16.25 .375" .125" 200 Revit/CAD
SDFLR0604 6 x 4 16.25 .375" .125" 200 Revit/CAD
SDFLR0605 6 x 5 16.25 .375" .125" 200 Revit/CAD
SDFLR0804 8 x 4 17.50 .375" .125" 190 Revit/CAD
SDFLR0805 8 x 5 17.50 .375" .125" 190 Revit/CAD
SDFLR0806 8 x 6 17.50 .375" .125" 190 Revit/CAD
SDFLR1006 10 x 6 19.50 .375" .125" 150 Revit/CAD
SDFLR1008 10 x 8 19.50 .375" .125" 150 Revit/CAD
SDFLR1210 12 x 10 21.50 .375" .125" 125 Revit/CAD

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Suction Diffuser Flex with Groove End x 150# Plate Flange and Concentric
Reducer for Connecting to a L.R. Elbow

Model No. Size OAL Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFLRGF2502 2.5 X 2 15 .375" .125" 345 Revit/CAD
SDFLRGF0302 3 x 2 15 .375" .125" 289 Revit/CAD
SDFLRGF0325 3 x 2.5 15 .375" .125" 289 Revit/CAD
SDFLRGF0402 4 x 2 15.5 .375" .125" 300 Revit/CAD
SDFLRGF0425 4 x 2.5 15.5 .375" .125" 300 Revit/CAD
SDFLRGF0403 4 x 3 15.5 .375" .125" 300 Revit/CAD
SDFLRGF0525 5 x 2.5 18.5 .375" .125" 220 Revit/CAD
SDFLRGF0503 5 x 3 18.5 .375" .125" 220 Revit/CAD
SDFLRGF0504 5 x 4 18.5 .375" .125" 220 Revit/CAD
SDFLRGF0603 6 x 3 19 .375" .125" 200 Revit/CAD
SDFLRGF0604 6 x 4 19 .375" .125" 200 Revit/CAD
SDFLRGF0605 6 x 5 19 .375" .125" 200 Revit/CAD
SDFLRGF0804 8 x 4 21 .375" .125" 190 Revit/CAD
SDFLRGF0805 8 x 5 21 .375" .125" 190 Revit/CAD
SDFLRGF0806 8 x 6 21 .375" .125" 190 Revit/CAD
SDFLRGF1006 10 x 6 23 .375" .125" 150 Revit/CAD
SDFLRGF1008 10 x 8 23 .375" .125" 150 Revit/CAD
SDFLRGF1210 12 x 10 25 .375" .125" 125 Revit/CAD

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Suction Diffuser Flex with 150# Plate Flanges for Connecting to a S.R. Elbow

Model No. Size OAL Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFS0200 2 9 .375" .125" 455 Revit/CAD
SDFS0250 2.5 9 .375" .125" 345 Revit/CAD
SDFS0300 3 9 .375" .125" 289 Revit/CAD
SDFS0400 4 9 .375" .125" 300 Revit/CAD
SDFS0500 5 11 .375" .125" 220 Revit/CAD
SDFS0600 6 11 .375" .125" 200 Revit/CAD
SDFS0800 8 12 .375" .125" 190 Revit/CAD
SDFS1000 10 13 .375" .125" 150 Revit/CAD
SDFS1200 12 14 .375" .125" 125 Revit/CAD
SDFS1400 14 14 .375" .125" 105 Revit/CAD

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Suction Diffuser Flex with Groove End X 150# Plate Flange
and 90 Degree Reducing Elbow

Model No. Size A* B* Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFL90RGF2502 2.5 X 2 15 4 .375" .125" 345 Revit/CAD
SDFL90RGF0302 3 X 2 15.75 4.75 .375" .125" 289 Revit/CAD
SDFL90RGF0325 3 X 2.5 15.75 4.75 .375" .125" 289 Revit/CAD
SDFL90RGF0402 4 X 2 17.25 6.25 .375" .125" 300 Revit/CAD
SDFL90RGF0425 4 X 2.5 17.25 6.25 .375" .125" 300 Revit/CAD
SDFL90RGF0403 4 X 3 17.25 6.25 .375" .125" 300 Revit/CAD
SDFL90RGF0525 5 X 2.5 20.75 7.75 .375" .125" 220 Revit/CAD
SDFL90RGF0503 5 X 3 20.75 7.75 .375" .125" 220 Revit/CAD
SDFL90RGF0504 5 X 4 20.75 7.75 .375" .125" 220 Revit/CAD
SDFL90RGF0603 6 X 3 22.25 9.25 .375" .125" 200 Revit/CAD
SDFL90RGF0604 6 X 4 22.25 9.25 .375" .125" 200 Revit/CAD
SDFL90RGF0605 6 X 5 22.25 9.25 .375" .125" 200 Revit/CAD
SDFL90RGF0804 8 X 4 26.75 12.25 .375" .125" 190 Revit/CAD
SDFL90RGF0805 8 X 5 26.75 12.25 .375" .125" 190 Revit/CAD
SDFL90RGF0806 8 X 6 26.75 12.25 .375" .125" 190 Revit/CAD
SDFL90RGF1006 10 X 6 30.75 15.25 .375" .125" 150 Revit/CAD
SDFL90RGF1008 10 X 8 30.75 15.25 .375" .125" 150 Revit/CAD
SDFL90RGF1210 12 X 10 34.75 18.25 .375" .125" 125 Revit/CAD

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Suction Diffuser Flex with Groove End X 150# Plate Flange
for Connecting to a L.R. Elbow

Model No. Size OAL Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFLGF0200 2 11.75 .375" .125" 455 Revit/CAD
SDFLGF0250 2.5 11.75 .375" .125" 345 Revit/CAD
SDFLGF0300 3 11.75 .375" .125" 289 Revit/CAD
SDFLGF0400 4 11.75 .375" .125" 300 Revit/CAD
SDFLGF0500 5 13.50 .375" .125" 220 Revit/CAD
SDFLGF0600 6 13.50 .375" .125" 200 Revit/CAD
SDFLGF0800 8 15.25 .375" .125" 190 Revit/CAD
SDFLGF1000 10 16.25 .375" .125" 150 Revit/CAD
SDFLGF1200 12 17.25 .375" .125" 125 Revit/CAD
SDFLGF1400 14 17.25 .375" .125" 105 Revit/CAD

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Suction Diffuser Flex with 150# Plate Flanges and 90 Degree Reducing Elbow

Model No. Size A* B* Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFL90R2502 2.5 x 2 12.25 4 .375" .125" 345 Revit/CAD
SDFL90R0302 3 x 2 13 4.75 .375" .125" 289 Revit/CAD
SDFL90R0325 3 x 2.5 13 4.75 .375" .125" 289 Revit/CAD
SDFL90R0402 4 x 2 14.5 6.25 .375" .125" 300 Revit/CAD
SDFL90R0425 4 x 2.5 14.5 6.25 .375" .125" 300 Revit/CAD
SDFL90R0403 4 x 3 14.5 6.25 .375" .125" 300 Revit/CAD
SDFL90R0525 5 x 2.5 18 7.75 .375" .125" 220 Revit/CAD
SDFL90R0503 5 x 3 18 7.75 .375" .125" 220 Revit/CAD
SDFL90R0504 5 x 4 18 7.75 .375" .125" 220 Revit/CAD
SDFL90R0603 6 x 3 19.5 9.25 .375" .125" 200 Revit/CAD
SDFL90R0604 6 x 4 19.5 9.25 .375" .125" 200 Revit/CAD
SDFL90R0605 6 x 5 19.5 9.25 .375" .125" 200 Revit/CAD
SDFL90R0804 8 x 4 23.25 12.25 .375" .125" 190 Revit/CAD
SDFL90R0805 8 x 5 23.25 12.25 .375" .125" 190 Revit/CAD
SDFL90R0806 8 x 6 23.25 12.25 .375" .125" 190 Revit/CAD
SDFL90R1006 10 x 6 27.25 15.25 .375" .125" 150 Revit/CAD
SDFL90R1008 10 x 8 27.25 15.25 .375" .125" 150 Revit/CAD
SDFL90R1210 12 x 10 31.25 18.25 .375" .125" 125 Revit/CAD

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Suction Diffuser Flex with 150# Plate Flanges and
Short Radius 90 Degree Elbow

Model No. Size A* B* Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFS900200 2 10.5 2.25 .375" .125" 455 Revit/CAD
SDFS900250 2.5 11 2.75 .375" .125" 345 Revit/CAD
SDFS900300 3 11.5 3.25 .375" .125" 289 Revit/CAD
SDFS900400 4 12.5 4.25 .375" .125" 300 Revit/CAD
SDFS900500 5 15.5 5.25 .375" .125" 220 Revit/CAD
SDFS900600 6 16.5 6.25 .375" .125" 200 Revit/CAD
SDFS900800 8 19.25 8.25 .375" .125" 190 Revit/CAD
SDFS901000 10 22.25 10.25 .375" .125" 150 Revit/CAD
SDFS901200 12 25.25 12.25 .375" .125" 125 Revit/CAD
SDFS901400 14 27.25 14.25 .375" .125" 105 Revit/CAD

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Suction Diffuser Flex with Groove End x 150# Plate Flanges and
Short Radius 90 Degree Elbow

Model No. Size A* B* Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFS90GF0200 2 13.25 2.25 .375" .125" 455 Revit/CAD
SDFS90GF0250 2.5 13.75 2.75 .375" .125" 345 Revit/CAD
SDFS90GF0300 3 14.25 3.25 .375" .125" 289 Revit/CAD
SDFS90GF0400 4 15.25 4.25 .375" .125" 300 Revit/CAD
SDFS90GF0500 5 18.25 5.25 .375" .125" 220 Revit/CAD
SDFS90GF0600 6 19.25 6.25 .375" .125" 200 Revit/CAD
SDFS90GF0800 8 22.75 8.25 .375" .125" 190 Revit/CAD
SDFS90GF1000 10 25.75 10.25 .375" .125" 150 Revit/CAD
SDFS90GF1200 12 28.75 12.25 .375" .125" 125 Revit/CAD
SDFS90GF1400 14 30.75 14.25 .375" .125" 105 Revit/CAD

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Suction Diffuser Flex with 150# Plate Flanges and
Long Radius 90 Degree Elbow

Model No. Size A* B* Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFL900200 2 11.5 3.25 .375" .125" 455 Revit/CAD
SDFL900250 2.5 12.25 4 .375" .125" 345 Revit/CAD
SDFL900300 3 13 4.75 .375" .125" 289 Revit/CAD
SDFL900400 4 14.5 6.25 .375" .125" 300 Revit/CAD
SDFL900500 5 18 7.75 .375" .125" 220 Revit/CAD
SDFL900600 6 19.5 9.25 .375" .125" 200 Revit/CAD
SDFL900800 8 23.25 12.25 .375" .125" 190 Revit/CAD
SDFL901000 10 27.25 15.25 .375" .125" 150 Revit/CAD
SDFL901200 12 31.25 18.25 .375" .125" 125 Revit/CAD
SDFL901400 14 34.25 21.25 .375" .125" 105 Revit/CAD

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Suction Diffuser Flex with 150# Plate Flanges and
Short Radius 90 Degree Elbow

Model No. Size A* B* Permanent Offset Intermittent Offset Pressure
at 70°F
3D Drawing
SDFSRGF2502 2.5 x 2 15 .375" .125" 345 Revit/CAD
SDFSRGF0302 3 x 2 15 .375" .125" 289 Revit/CAD
SDFSRGF0325 3 x 2.5 15 .375" .125" 289 Revit/CAD
SDFSRGF0402 4 x 2 15.5 .375" .125" 300 Revit/CAD
SDFSRGF0425 4 x 2.5 15.5 .375" .125" 300 Revit/CAD
SDFSRGF0403 4 x 3 15.5 .375" .125" 300 Revit/CAD
SDFSRGF0525 5 x 2.5 18.5 .375" .125" 220 Revit/CAD
SDFSRGF0503 5 x 3 18.5 .375" .125" 220 Revit/CAD
SDFSRGF0504 5 x 4 18.5 .375" .125" 220 Revit/CAD
SDFSRGF0603 6 x 3 19 .375" .125" 200 Revit/CAD
SDFSRGF0604 6 x 4 19 .375" .125" 200 Revit/CAD
SDFSRGF0605 6 x 5 19 .375" .125" 200 Revit/CAD
SDFSRGF0804 8 x 4 21 .375" .125" 190 Revit/CAD
SDFSRGF0805 8 x 5 21 .375" .125" 190 Revit/CAD
SDFSRGF0806 8 x 6 21 .375" .125" 190 Revit/CAD
SDFSRGF1006 10 x 6 23 .375" .125" 150 Revit/CAD
SDFSRGF1008 10 x 8 23 .375" .125" 150 Revit/CAD
SDFSRGF1210 12 x 10 25 .375" .125" 125 Revit/CAD

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Suction Diffuser Flex
Watch Video

Suction Diffuser Flex Schematic

Suction Diffuser Flex Pump Connector

Suction Diffuser Flex Dye Flow

Picture of dye flow
with and without Suction Diffuser Flex