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  • Liquiflo 2 Series 2R-2F Mag-Drive Close Coupled

    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 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. (See also Replacement Cartridge for even quicker repairs.)

    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: Liquiflo gear pumps are available with base-mounts to simplify installation. Liquiflo also offers base-mounts with or without the motor pre-installed.

    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), Tungsten Carbide (TC) and Titanium Oxide (TO) coatings are available.

    Accessories & Spare Parts: Mechanical couplings, coupling guards, risers, base plates, adapters, brackets, pedestals and individual pump components can all be purchased separately.

  • Liquiflo 3-series 31-39 Sealed

    The 3-Series Gear Pumps have been replaced by the H-Series gear pump line.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, 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.

    Mechanical Seal: Mechanical seals are offered in single and double configurations and are used for chemical applications where leakage needs to be minimized or eliminated. The single internal mechanical seal is the most common seal type and is ideal for pumping clean liquids up to 5,000 cP viscosity. The double mechanical seal requires a flushing system and is typically used when pumping liquids that are viscous, abrasive, crystalize on contact with air or are very hazardous. Carbon vs. SiC seal faces are the primary choice for most applications up to 500 °F. SiC vs. SiC seal faces have high abrasion resistance and can be applied up to 500 °F. Teflon vs. SiC seal faces have extreme chemical resistance and can be applied up to 180 °F and 50 PSI differential pressure.

    Packing Seal: Packing is the simplest and most economical solution for pumping non-hazardous liquids where minor leakage is acceptable. Braided Teflon packing is the primary choice for applications up to 350 °F. Graphoil packing is available for high temperature applications up to 500 °F.



    Available Options & Accessories


    Replacement Cartridge: A cartridge is a complete mag-drive pump less the outer magnet and pedestal. A cartridge replacement is a convenient way to quickly replace a mag-drive pump that requires maintenance, ensuring maximum uptime.

    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.

    Repair Kits: Repair Kits simplify inventory and speed repair. All parts can also be purchased separately. (See also Replacement Cartridge for even quicker repairs.)

    Close-Coupled Configuration: All Liquiflo gear pumps are available with the close-coupled configuration. This configuration simplifies installation and maintenance, and extends pump life by guaranteeing perfect pump-motor alignment.

    Raised-Face Flanges: ANSI, DIN, and JIS Flanges are available to simplify piping connections and disconnections.

    Sanitary Fittings: Tri-clamp sanitary fittings are a convenient alternative to threaded or flanged port connections.

    S-Adapter: The S-Adapter is available for long-coupling mag-drive pumps; it isolates the pump from the motor and can be used when long-coupling pumps to motors or drives that do not have a C-face mounting. Maximum temperature rating is 250°F (120°C).

    Power Frame: The Liquiflo Power Frame is used for long-coupling mag-drive pumps that are used for high temperature applications, up to the pump's maximum temperature rating. Its integral cooling jacket keeps the bearing system of the pedestal cool even when it is coupled to a pump operating at extremely high temperature.

    Clamp-On Temperature Control Jacket: Temperature Control Jackets can maintain the pump at either elevated or reduced temperatures. They are commonly used when pumping liquids that solidify or become difficult to pump when the temperature decreases.

    Dual-Kan™: Liquiflo's patented Dual Kan controls the back-end temperature of a mag-drive pump by circulating a heating or a cooling fluid through the containment can. This is ideal for applications requiring precise and uniform temperature control.

    Base Plate Mounting: Liquiflo gear pumps are available with base-mounts to simplify installation. Liquiflo also offers base-mounts with or without the motor pre-installed.

    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.

    Accessories & Spare Parts: Mechanical couplings, coupling guards, risers, base plates, adapters, brackets, pedestals and individual pump components can all be purchased separately.

  • Liquiflo 4 Series 41, 43, 44, 45 Mag-Drive Close Coupled

    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 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. (See also Replacement Cartridge for even quicker repairs.)

    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: Liquiflo gear pumps are available with base-mounts to simplify installation. Liquiflo also offers base-mounts with or without the motor pre-installed.

    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), Tungsten Carbide (TC) and Titanium Oxide (TO) coatings are available.

    Accessories & Spare Parts: Mechanical couplings, coupling guards, risers, base plates, adapters, brackets, pedestals and individual pump components can all be purchased separately.

  • Liquiflo Poly Guard P1-P4 Mag-Drive Close Coupled

    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 pedestal. A cartridge replacement is a convenient way to quickly replace a mag-drive pump that requires maintenance, ensuring maximum uptime.

    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.

    Repair Kits: Repair Kits simplify inventory and speed repair. All parts can also be purchased separately. (See also Replacement Cartridge for even quicker repairs.)

    S-Adapter: The S-Adapter is available for long-coupling mag-drive pumps; it isolates the pump from the motor and can be used when long-coupling pumps to motors or drives that do not have a C-face mounting. Maximum temperature rating is 250°F (120°C).

    Base Plate Mounting: Liquiflo gear pumps are available with base-mounts to simplify installation. Liquiflo also offers base-mounts with or without the motor pre-installed.

    Accessories & Spare Parts: Mechanical couplings, coupling guards, risers, base plates, adapters, brackets, pedestals and individual pump components can all be purchased separately.

  • Liquiflo H Series H1-H9 Sealed Close Coupled

    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
    • Closed-Coupled or Long-Coupled
    • 12 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 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.

    Mechanical Seal: Mechanical seals are offered in single and double configurations and are used for chemical applications where leakage needs to be minimized or eliminated. The single internal mechanical seal is the most common seal type and is ideal for pumping clean liquids up to 5,000 cP viscosity. The double mechanical seal requires a flushing system and is typically used when pumping liquids that are viscous, abrasive, crystalize on contact with air or are very hazardous. Carbon vs. SiC seal faces are the primary choice for most applications up to 500 °F. SiC vs. SiC seal faces have high abrasion resistance and can be applied up to 500 °F. Teflon vs. SiC seal faces have extreme chemical resistance and can be applied up to 180 °F and 50 PSI differential pressure.

    Packing Seal: Packing is the simplest and most economical solution for pumping non-hazardous liquids where minor leakage is acceptable. Braided Teflon packing is the primary choice for applications up to 350 °F. Graphoil packing is available for high temperature applications up to 500 °F.



    Available Options & Accessories


    Replacement Cartridge: A cartridge is a complete mag-drive pump less the outer magnet and pedestal. A cartridge replacement is a convenient way to quickly replace a mag-drive pump that requires maintenance, ensuring maximum uptime.

    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.

    Repair Kits: Repair Kits simplify inventory and speed repair. All parts can also be purchased separately. (See also Replacement Cartridge for even quicker repairs.)

    Close-Coupled Configuration: All Liquiflo gear pumps are available with the close-coupled configuration. This configuration simplifies installation and maintenance, and extends pump life by guaranteeing perfect pump-motor alignment.

    Raised-Face Flanges: ANSI, DIN, and JIS Flanges are available to simplify piping connections and disconnections.

    Sanitary Fittings: Tri-clamp sanitary fittings are a convenient alternative to threaded or flanged port connections.

    S-Adapter: The S-Adapter is available for long-coupling mag-drive pumps; it isolates the pump from the motor and can be used when long-coupling pumps to motors or drives that do not have a C-face mounting. Maximum temperature rating is 250°F (120°C).

    Power Frame: The Liquiflo Power Frame is used for long-coupling mag-drive pumps that are used for high temperature applications, up to the pump's maximum temperature rating. Its integral cooling jacket keeps the bearing system of the pedestal cool even when it is coupled to a pump operating at extremely high temperature.

    Clamp-On Temperature Control Jacket: Temperature Control Jackets can maintain the pump at either elevated or reduced temperatures. They are commonly used when pumping liquids that solidify or become difficult to pump when the temperature decreases.

    Dual-Kan™: Liquiflo's patented Dual Kan controls the back-end temperature of a mag-drive pump by circulating a heating or a cooling fluid through the containment can. This is ideal for applications requiring precise and uniform temperature control.

    Base Plate Mounting: Liquiflo gear pumps are available with base-mounts to simplify installation. Liquiflo also offers base-mounts with or without the motor pre-installed.

    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.

    Accessories & Spare Parts: Mechanical couplings, coupling guards, risers, base plates, adapters, brackets, pedestals and individual pump components can all be purchased separately.

  • Liquiflo Max Series M0-M8 Mag-Drive M5 M8-Sealed Close Coupled

    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 Iron.

    Configuration: The MAX® Series pumps are available in either Single or Double Mechanical Seal or Mag-Drive configurations. The universal seal housing will accommodate either a single or double mechanical seal. The Close-Coupled design eliminates difficulties and inconveniences of manually aligning the pump and motor. MAX® Series pumps are offered in 316 Stainless Steel or Titanium housings with a selection of internal component materials to optimize your selection for specific applications.

    • Flows up to 20 GPM
    • Pressures up to 350 PSI
    • 316 SS or Titanium
    • 9 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 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.

    Mechanical Seal: Mechanical seals are offered in single and double configurations and are used for chemical applications where leakage needs to be minimized or eliminated. The single internal mechanical seal is the most common seal type and is ideal for pumping clean liquids up to 5,000 cP viscosity. The double mechanical seal requires a flushing system and is typically used when pumping liquids that are viscous, abrasive, crystalize on contact with air or are very hazardous. Carbon vs. SiC seal faces are the primary choice for most applications up to 500 °F. SiC vs. SiC seal faces have high abrasion resistance and can be applied up to 500 °F.



    Available Options & Accessories

    Repair Kits: Repair Kits simplify inventory and speed repair. All parts can also be purchased separately. (See also Replacement Cartridge for even quicker repairs.)

    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.

    Clamp-On Temperature Control Jackket: Termperature Control Jackets can maintain the pump at either elevated or reduced temperatures. They are commonly used when pumping liquids that solidify or become difficult to pump when the temperature decreases.

    Raised-Face Flanges: ANSI, DIN, and JIS Flanges are available to simplify piping connections and disconnections.

    Base Plate Mounting: Liquiflo gear pumps are available with base-mounts to simplify installation. Liquiflo also offers base-mounts with or without the motor pre-installed.

    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), Tungsten Carbide (TC) and Titanium Oxide (TO) coatings are available.

  • Specialty Pumps

    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.

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