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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.
Flows up to 30 GPH
Pressures up to 225 PSI
316 SS
2 Models offered
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 ...
The 3-Series Gear Pumps have been replaced by the H-Series gear pump line.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 available in Sealed and Mag Drive versions with flows up to approximately 55 GPM and differential pressures up to 100 PSI.
Flows up to 55 GPM
Pressures up to 100 PSI
316 SS, Alloy-C or Alloy-20
11 Models Offered
Available Sealing Configurations
Magnetically Coupled (sealless): The magnetically coupled or mag-drive pump is the best method for handling toxic, noxious, ...
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Liquiflo®'s 4-Series pumps are low-flow magnetically-driven gear pumps. The 4-Series housings are manufactured from Bar Stock in 316 Stainless Steel, Alloy-C or Titanium. With several material options for shafts, gears, wear plates and bearings, these pumps can be used in a wide variety of chemical processing applications.
Flows up to 3.5 GPM
Pressures up to 100 PSI
316 SS, Alloy-C or Titanium
4 Models offered
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 ...
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The Poly-Guard® Series External Gear Pump has a rugged Stainless Steel body lined with a chemically-resistant fluoropolymer and contains all non-metallic internal components. This makes the Poly-Guard an excellent choice for pumping highly corrosive inorganic acids, alkalis and salts, as well as for high-purity services, where contact with metallic components must be avoided. The Poly-Guard is available in 7 sizes with flow rates ranging from 1.4 to 15 GPM.
Flows up to 15 GPM
Pressures up to 100 PSI
303 SS/PFA-Lined
7 Models Offered
Available Options & Accessories
Replacement Cartridge: A cartridge is a complete mag-drive pump less the outer magnet and ...
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The H-Series Gear Pumps were designed as an upgrade to Liquiflo®'s original 3-Series. With similar outside dimensions and capacities, the H-Series incorporates larger diameter shafts and bearings, allowing them to handle higher pressures with extended service life. H-Series pumps are available in Sealed and Mag-Drive versions with flows up to approximately 55 GPM and differential pressures up to 225 PSI with 300 PSI possible on some models.
Flows up to 55 GPM
Differential Pressures up to 225 PSI
Viscosities from 0.3 to 100,000+ cP
316 SS or Alloy-C Basic Construction
Packing, Single Mechanical Seal, Double Mechanical Seal or Mag-Drive
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The Liquiflo® MAX® Series Gear Pumps will handle differential pressures up to 350 PSI and flows to 20 GPM. Their unique, durable design assures extended life even in high-pressure pumping applications where other gear pumps could fail. The MAX® Series pumps feature newly designed Helical Gears for smoother and quieter operation.
Heavy-Duty Construction: The MAX® Series heavy duty shaft and bearing design make it last even when operating at high differential pressures for extended lengths of time. Its solid construction and oversized heavy duty bolts will minimize pump distortion caused by piping misalignment. The pump mounting bracket is made of corrosion-resistant 316 Stainless Steel or sturdy Cast ...
One of Liquiflo®'s many strengths is their ability to design and manufacture Specialty Pumps. A Special Pump can be as simple as modifying a port configuration or as complex as a complete new pump design. Liquiflo®'s design and manufacturing engineers use their years of pumping experience and knowledge of engineered materials to custom design a pump to meet specific applications. To date, Liquiflo® has designed over 700 different specialty pumps which have solved numerous problems in the chemical and industrial marketplace throughout the world.
If you have an application that cannot use a standard off-the-shelf pump, please give us the opportunity to design a custom pump that will meet the specific needs of your application.
