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Model 620
Sub-ANSI Centrifugal Pump
316 Stainless Steel or Alloy-C
Sealed or Mag-Drive

Suction Port 1" NPT/FLG 1
Discharge Port 3/4" NPT/FLG 1
Impeller Diameter (Full Size) 3 3/4"
Impeller Trims (Standard) 3.5" 3.25" 3" 2.75"
Max Flow Rate 45 GPM
Max Total Head 65 FT
Max Discharge Pressure 300 PSIG 2
Max Temperature 500 °F 3
Min Temperature -100 °F 3
Max Speed 3500 RPM
NPSHR @ 3500 RPM & BEP 7.5 FT
NPSHR @ 1750 RPM & BEP 1.8 FT
Weight (without motor)
 Sealed (N): SMS Type 21/9T
 Sealed (L): SMS Type 9A
 Sealed (L): DMS/Packing
 Mag-Drive
NPT
12 LBS
16 LBS
26 LBS
30 LBS
FLG
16 LBS
20 LBS
30 LBS
34 LBS

1 Standard Flanges are ANSI 150# RF.

2 Maximum Pressure Rating for 150# Flanges is 275
PSIG up to 100°F. Derating required above 100°F.

3 Temperature Limit given for Mag-drive pump with proper configuration; Temperature Limit for Sealed pump is dependent on Motor or Driver.

N = New Design (Closed-Bracket)
L = Legacy Design (Open-Bracket)

SMS = Single Mechanical Seal
DMS = Double Mechanical Seal

Liquiflo's Centry® Series are Sealed and Magnetically-Coupled (MC) Centrifugal pumps engineered and manufactured for the user with increased needs for equipment reliability. These pumps are specifically designed to handle the lower flow applications that create maintenance problems for standard ANSI pumps operating at less than BEP.

 
 
620 Performance Curves (Typical)  
 
 
 
 
620 Dimensional Drawings  
 
 
620 with Type 21 or 9T Single Seal & NPT Ports, Close-Coupled (New Design)
 
 
 
 
620 with Type 21 or 9T Single Seal & Flanged Ports, Close-Coupled (New Design)
 
 
 
 
 
620 with Type 9A Single Seal & NPT Ports, Close-Coupled (Legacy Design)
 
 
 
 
620 Mag-Drive with NPT Ports, Close-Coupled
 
 

 

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