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Model 37R
 Standard Duty Gear Pump
 316 SS |  Alloy-C |  Alloy-20
 Sealed | Mag-Drive
Port Connections 3/4" NPT/BSPT
3/4" FLG*
Max Flow Rate 8.6 GPM; 32.5 LPM
Max Differential Pressure 100 PSI; 6.9 BAR
Max Discharge Pressure 300 PSIG; 20.7 BARG
Max Viscosity 100,000 CPS (mPas)
Max Temperature 500 °F; 260 °C
Min Temperature -40 °F; -40 °C
Max Speed 1750 RPM
NPSHR @ Max Speed 5.2 FT; 1.6 M
Lift (Dry) @ Max Speed 6.0 FT; 1.8 M
Weight (without motor)
  Sealed, Long-Coupled
  Sealed, Close-Coupled
  Mag, Close-Coupled

6.5 LBS; 3.0 KGS
29 LBS; 13 KGS
36 LBS; 16.4 KGS

The 3-Series Gear Pumps have been replaced by the H-Series gear pump line. The H-Series is recommended for all new applications as well as an upgrade to any existing 3-Series installations.

Liquiflo's original 3-Series Gear Pumps are manufactured from 316 Stainless Steel, Alloy-C or Alloy-20 and are available in Sealed or Mag-drive configurations with flows up to 55 GPM and differential pressures up to 100 PSI.

*Standard Flanges are ANSI 150# RF.

Contact us for your application needs

Performance Curves
37R (pdf)
Dimensional Drawings
37F/R Sealed LC (pdf)
37F/R Sealed LC Base (pdf)
37F/R MC/Sealed CC (pdf)
37F/R MC LC Base (pdf)
Product Manuals
31F-39F Sealed LC&CC (pdf)
31F-39F Mag-Drive CC (pdf)
Model Coding
3-Series (pdf)
Bill of Materials
37-Series (pdf)



37R Performance Curves  
37R Dimensional Drawings  
37R Sealed with Threaded Ports, Long-Coupled
Model 37R
Dimensional Data (inches) for available Seal Configurations
Dimension Single Mechanical Seal
Double Mechanical Seal
External Mechanical Seal Packing Seal Lip Seal
CP (1) 8.20 10.32 8.20 8.20
L 5.98 8.10 5.98 5.98
N 1.23 3.35 1.25 (2) 1.56
(1) Add .31 inches for Bearing Flush Plugs.
(2) Minimum dimension.


37R Mag-Drive & Sealed with Threaded Ports, Close-Coupled



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