FLOJET G57C172A AIR OPERATED DIAPHARAGM PUMP

FLOJET G57C172A Air Operated Double Diaphragm Pump – 5 GPM, 1/2" MNPT, Kalrez Diaphragms

The FLOJET G57C172A is an Air Operated Double Diaphragm (AODD) pump from the FLOJET G57 Series. Its pneumatic operating principle eliminates the need for an electric motor, making it suitable for installations where compressed air or CO₂ is readily available.

Key Features:

• FLOJET G57C Series air-operated diaphragm pump
• Model: G57C172A
• Pump type: Air Operated Double Diaphragm (AODD)
• Maximum flow: 5 GPM / 18.9 LPM
• Maximum pressure: 100 PSI / 6.9 bar
• Liquid connections: 1/2" Male NPT
• Air inlet: 1/4"
• Diaphragm material: Kalrez
• Check-valve seals: Viton Extreme
• Spring material: Hastelloy
• Pump housing: Polypropylene
• Self-priming: Up to 15 ft / 4.5 m
• Maximum liquid temperature: 120°F / 48.9°C
• Minimum liquid temperature: 40°F / 4.4°C
• Maximum noise level: Approximately 87 dB
• Suitable for air or CO₂ operation within applicable operating conditions.

Technical Specifications:

Model-specific listings confirm the 5 GPM, 100 PSI, 1/2" MNPT, Kalrez configuration and approximately 1.63 lb weight.

Construction & Materials

Pump Body

Polypropylene

The polypropylene construction provides a lightweight and corrosion-resistant housing suitable for a variety of commercial and industrial fluid-handling environments.

Diaphragm

Kalrez

The G57C172A uses Kalrez diaphragms, making this configuration particularly suited to applications where chemical compatibility is an important consideration.

Check Valve Seals

Viton Extreme

Viton Extreme seals are used in the check-valve assembly.

Springs

Hastelloy

Hastelloy springs provide corrosion resistance and durability within the pump's specified operating environment.

Performance

Maximum Flow Rate:
5 GPM / 18.9 LPM

Maximum Pressure:
100 PSI / 6.9 bar

Self-Priming:
Up to 15 ft / 4.5 m, subject to installation and operating conditions.

The actual flow achieved in an installation will depend on air supply pressure, fluid characteristics, piping, suction conditions and system back pressure.

Compatible Fluid Applications

The Kalrez diaphragm configuration is listed for use with a range of fluids, including:

• Lubricating oils
• Hydraulic oils
• Vegetable oils
• Alcohols
• Ketones
• Aromatic hydrocarbons
• Aliphatic hydrocarbons
• Diluted acids
• Alkalis
• Soaps containing solvents
• Automotive brake fluid
• Acetone
• Ethanol
• Inks

Important: Chemical compatibility must always be verified for the specific fluid, concentration, temperature and operating conditions before installation. Halogenated solvents are listed as not compatible with the Kalrez configuration.

Main Applications:

The FLOJET G57C172A can be considered for a variety of commercial and industrial fluid-transfer applications, including:

• Industrial fluid transfer
• Chemical fluid handling
• Oil transfer
• Hydraulic fluid transfer
• Vegetable oil handling
• Solvent-related applications where material compatibility is confirmed
• Ink transfer
• Beverage and food-service equipment applications where the fluid and material compatibility requirements are satisfied
• General-purpose pneumatic pumping systems

The FLOJET G57 Series is designed for general commercial and industrial applications and is available with different diaphragm materials to suit different fluid-handling requirements.

Main Advantages:

• Pneumatic Operation

The pump operates using compressed air or CO₂ rather than an electric motor, making it useful for pneumatic fluid-transfer systems.

• Compact Design

The G57 Series uses a compact design intended for easy integration into commercial and industrial equipment.

• Chemical-Resistant Materials

The Kalrez diaphragm, Viton Extreme seals, polypropylene body and Hastelloy springs provide a material combination intended for demanding fluid-handling applications.

• Self-Priming

The pump provides self-priming capability of up to approximately 15 ft / 4.5 m under specified conditions.

• No Electrical Motor Required

Because the pump is air operated, it does not require a conventional electric motor for pumping.