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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 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.

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Discharge Pressure

Curve Image

Max. Viscosity

Max. Speed

Port Connections

Max. Fluid Temperature

Self-Priming

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QUOTE N/A 1.4 gpm5.5 lpm N/A 19 bar275 psi N/A N/A N/A 1750 rpm N/A 0.75" 150# ANSI Flange DIN 20 PN16 Flange N/A 200 ºF93 ºC N/A 1.5 ft Add To Cart
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QUOTE N/A 2.4 gpm9.1 lpm N/A 19 bar275 psi N/A N/A N/A 1750 rpm N/A 0.75" 150# ANSI Flange DIN 20 PN16 Flange N/A 200 ºF93 ºC N/A 2 ft Add To Cart
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QUOTE N/A 3.4 gpm12.9 lpm N/A 19 bar275 psi N/A N/A N/A 1750 rpm N/A 0.75" 150# ANSI Flange DIN 20 PN16 Flange N/A 200 ºF93 ºC N/A 4 ft Add To Cart
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QUOTE N/A 5 gpm18.9 lpm N/A 19 bar275 psi N/A N/A N/A 1750 rpm N/A 0.75" 150# ANSI Flange DIN 20 PN16 Flange N/A 200 ºF93 ºC N/A 6 ft Add To Cart
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QUOTE N/A 8.6 gpm32.6 lpm N/A 19 bar275 psi N/A N/A N/A 1750 rpm N/A 1.5" 150# ANSI Flange DIN 40 PN16 Flange N/A 200 ºF93 ºC N/A 6 ft Add To Cart
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QUOTE N/A 11.8 gpm44.7 lpm N/A 19 bar275 psi N/A N/A N/A 1750 rpm N/A 1.5" 150# ANSI Flange DIN 40 PN16 Flange N/A 200 ºF93 ºC N/A 7 ft Add To Cart
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QUOTE N/A 15 gpm56.8 lpm N/A 19 bar275 psi N/A N/A N/A 1750 rpm N/A 1.5" 150# ANSI Flange DIN 40 PN16 Flange N/A 200 ºF93 ºC N/A 7 ft Add To Cart
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