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Flojet G57C223A Air Operated Two Diaphragm Pump - 5 GPM, 3/4 HB, Kalrez

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1.69 lbs
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Poly body air-operated pump with Kalrez diaphragms. 100 PSI, 5 GPM, 3/4" HB inlet and discharge ports.
Prep 65

Prop 65


Technical Specifications

Inlet Port: 3/4 inch
Max GPM: 5
Max PSI: 100
Max Temperature: 120 degrees F

Product Description

G57C Series Pump with Kalrez Diaphragms

The Flojet G57C223A Air Driven Pump has a polypropylene housing and check valves, two Kalrez material diaphragms, Viton Extreme seals, and Hastelloy springs. This model features 3/4" 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
  • 3/4" 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)
  • 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

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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