Flojet G57-5215 5.5 GPM Air Operated Diaphragm Pump for Industrial Fluid Transfer
The Flojet G57-5215 air operated diaphragm pump is a compact, high-efficiency solution designed for reliable fluid transfer in industrial and commercial environments. Delivering up to 5.5 GPM (20 LPM), this pump is powered by compressed air or CO₂ and is widely used for chemical handling, water transfer, parts washing, and general industrial dispensing systems.
Built with a durable polypropylene housing and Santoprene diaphragm components, the G57-5215 is engineered for chemical resistance, long service life, and stable performance under variable pressure conditions. Its internal air motor design allows for self-priming operation and stall-resistant performance, making it ideal for intermittent or continuous duty applications.
This pump is especially valued for its compact footprint, quiet operation, and ability to handle solids up to 1/8 inch (3.2 mm), making it a dependable choice for demanding fluid transfer environments across multiple industries—not limited to marine use.
Key Features
- Air operated double diaphragm (AODD) pump design
- Maximum flow rate: 5.5 GPM (20 LPM)
- Stall-proof shuttle valve design for reliable operation
- Self-priming capability (dry and wet applications)
- Quiet operation with integrated exhaust muffler
- Leak-resistant radial seal construction
- Handles solids up to 3.2 mm (1/8 inch)
- Compact, lightweight industrial design
Applications
- Industrial chemical transfer and dispensing
- Parts washers and cleaning systems
- Water transfer and recycling systems
- Automotive wash systems
- Ink, soap, and mild chemical handling
- General manufacturing fluid movement
- Portable air-driven pump systems
Specifications
- Model: Flojet G57-5215
- Flow Rate: Up to 5.5 GPM (20 LPM)
- Max Air Pressure: 100 PSI (6.9 bar)
- Minimum Operating Pressure: ~20 PSI
- Port Size: 1/2 inch hose barb (liquid ports)
- Air Inlet: 1/4 inch hose barb
- Housing Material: Polypropylene
- Diaphragm Material: Santoprene
- Solids Handling: Up to 1/8 inch (3.2 mm)
- Self-Priming: Up to 15 ft dry / 20 ft wet
- Temperature Range: 40°F to 120°F (4.4°C to 48.9°C)
FAQs
What type of air supply does the Flojet G57-5215 require?
It requires clean, dry compressed air or CO₂, typically between 20–100 PSI for optimal performance.
Can this pump run dry without damage?
Yes, like most AODD pumps, it can run dry or “deadhead” without damage.
What fluids can it handle?
It is suitable for water-based chemicals, mild acids, detergents, soaps, and industrial cleaning fluids (material compatibility should always be verified).
Is this pump self-priming?
Yes, it can self-prime up to 15 feet dry and 20 feet wet.
Can it handle solids?
Yes, it can pass solids up to approximately 1/8 inch (3.2 mm).
CLRMarine
