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Flojet G57C202D Air Operated Kalrez Diaphragm Pump - 5 GPM, 3/8 HB

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1.38 lbs
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Air-operated poly pump with Kalrez diaphragms. 100 PSI, 5 GPM, 3/8" hose barb inlet and discharge ports.
Prep 65

Prop 65


Technical Specifications

Max PSI: 100
Min Temperature: 40 degrees F
Max Temperature: 120 degrees F
Inlet Port: 3/8 inch
Outlet Port: 3/8 inch
Max GPM: 5

Product Description

Polypropylene Body Pump with Kalrez Diaphragms

The Flojet G57C202D Air Driven Pump has a polypropylene housing and check valves, two Kalrez material diaphragms, Viton Extreme seals, and Hastelloy springs. This model features 3/8" hose barb ports, a 5 GPM flow rate, and 100 PSI maximum inlet pressure. Flojet Industrial G57 and G57C Pumps are designed for general commercial and industrial applications.

Specifications and Features:

  • 5 GPM flow rate
  • 100 PSI max inlet pressure
  • 20 PSI minimum starting pressure
  • 3/8" straight hose barb inlet and outlet ports
  • 1/4" air inlet
  • 40° to 120° Fahrenheit liquid temperature range
  • Kalrex diaphragms
  • Viton Extreme check valve seals
  • Hastelloy springs
  • Self Priming - Up to 15ft (4.5m)
  • Weight: 1.38 lbs.
  • 87 decibel maximum noise level

Allowed Fluids for Kalrez Material:

  • Lubricating Oils
  • Hydraulic Oils
  • Vegetable Oils
  • Alcohols
  • Keytones
  • Aromatic Hydrocarbons
  • Aliphatic Hydrocarbons
  • Diluted Acids
  • Alkalis
  • Soaps with Solvents
  • Automotive Brake Fluid
  • Acetones
  • Ethanol
  • Inks

Not Allowed Fluids for Kalrez Material:

  • Halogenated Solvents


  • 814338021268

Caution: The use of check valves in the plumbing system could interfere with the priming ability of the pump. If unavoidable, check valves in the pumping system must have a cracking pressure of 2 PSI or less.

WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm (For more information go to

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