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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 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.

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Item #

Price

Max. Flow Rate

Discharge Pressure

Curve Image

Max. Viscosity

Max. Speed

Port Connections

Max. Fluid Temperature

Self-Priming

Add To Cart/Request Quote
LH-M0 QUOTE N/A .4 gpm1.5 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 0.5" 150# ANSI Flange 0.5" BSPT 0.5" NPT N/A 500 ºF260 ºC N/A .5 ft Add To Cart
Request Quote
LH-M1 QUOTE N/A 1 gpm3.8 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 0.5" 150# ANSI Flange 0.5" BSPT 0.5" NPT N/A 500 ºF260 ºC N/A 1 ft Add To Cart
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LH-M2 QUOTE N/A 2.5 gpm9.5 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 0.5" 150# ANSI Flange 0.5" BSPT 0.5" NPT N/A 500 ºF260 ºC N/A 2 ft Add To Cart
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LH-M3 QUOTE N/A 3.5 gpm13.2 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 0.5" 150# ANSI Flange 0.5" BSPT 0.5" NPT N/A 500 ºF260 ºC N/A 4 ft Add To Cart
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LH-M4 QUOTE N/A 5.2 gpm19.7 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 0.75" 150# ANSI Flange 0.75" BSPT 0.75" NPT N/A 500 ºF260 ºC N/A 6 ft Add To Cart
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LH-M5 QUOTE N/A 8.8 gpm33.3 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 0.75" 150# ANSI Flange 0.75" BSPT 0.75" NPT N/A 500 ºF260 ºC N/A 6 ft Add To Cart
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LH-M6 QUOTE N/A 12.2 gpm46.2 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 1" 150# ANSI Flange 1" BSPT 1" NPT N/A 500 ºF260 ºC N/A 7 ft Add To Cart
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LH-M7 QUOTE N/A 15.5 gpm58.7 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 1.25" 150# ANSI Flange 1.25" BSPT 1.25" NPT N/A 500 ºF260 ºC N/A 6 ft Add To Cart
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LH-M8 QUOTE N/A 20 gpm75.7 lpm N/A 34.5 bar500 psi N/A N/A 100000 cps N/A 1800 rpm N/A 1.5" 150# ANSI Flange 1.5" BSPT 1.5" NPT N/A 500 ºF260 ºC N/A 14 ft Add To Cart
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