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Guide to Gear Pumps
An Introduction to Gear Pumps

Gear Pump Basics (pdf)

Metering with Gear Pumps (pdf)


Questions?
Contact us for your application needs

Special Requirements?
Liquiflo can custom engineer pumps to meet the specific requirements of your application

 

 
 
The 2-Series gear pumps were designed for low flow applications. Their compact and rugged design makes them ideal for many applications, including chemical dosing and metering, pipeline sampling and wastewater treatment. They are available in corrosion-resistant 316 Stainless Steel and Mag-Drive configuration.
 
 

Models 2R & 2F - Mag-Drive, Close-Coupled
 
 
2-Series Specifications Click any Model # below to access
page for that individual model:
 
  2-SERIES MODEL   2R 2F  
  Port Connections:  NPT
in

1/4

1/4

 
 
Max Flow Rate
GPH
 15 30  
  Max Differential Pressure
PSI
 225 225  
 
Max Discharge Pressure
PSIG
 350 350  
  Max Temperature
°F
 500 500  
 
Max Speed
RPM
 1750 1750  
  NPSHR @ Max Speed
ft
 3 3  
 
Weight (without motor)
  Mag, Close-Coupled
lbs
 5 5  

  NPSHR = Net Positive Suction Head Required
 
 
 
 
Available Materials Of Construction  
 
 
 
Available Sealing Configurations  
Magnetically Coupled (sealless)

The magnetically coupled or mag-drive pump is the best method for handling toxic, noxious, crystallizing, or most other hazardous liquids since it completely contains the pumpage by isolating the drive shaft inside the pump housing. With no dynamic seal to leak or replace, the maintenance issues associated with seal leakage are eliminated. All Liquiflo gear pumps are available with magnetic drive.
 
 
 
Available Options & Accessories  
Repair Kits
Repair Kits simplify inventory and speed repair. All parts can also be purchased separately.

Relief Valves
Positive displacement pumps should be installed with a relief valve in the discharge line to protect the pump and piping against any type of line blockage including the inadvertent closing of an isolation valve. Liquiflo manufactures two sizes of relief valves in both 316 SS and Alloy-C.
Base Plate Mounting
2-Series pumps can be base-mounted when close-coupled to a motor.

Hard-Coated Shafts
Hard-coated shafts are used to extend pump life in difficult applications requiring higher levels of wear resistance. Ceramic Chrome Oxide (CO) and Tungsten Carbide (TC) coatings are available.

 

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