Air Diaphragm Pumps
Air diaphragm pumps are essential for transferring and circulating the solutions that drive high‑performance metal finishing. Built to handle corrosive, abrasive, and viscous materials, these pumps deliver reliable, leak‑resistant operation in environments where electric pumps aren’t suitable. Their ability to run dry without damage makes them one of the most dependable choices for plating, pretreatment, and waste treatment systems.
Brands You Trust
PSI supplies industry-leading air diaphragm pumps from top manufacturers, ensuring proven reliability, chemical resistance, and long-term performance.
Flow Rate Capabilities
(Based on water viscosity at 100 psi air pressure)
| Pump Size | Max Flow Rate |
|---|---|
| ¼” | 20 gpm |
| ½” | 15–16 gpm |
| 1” | 45–48 gpm |
| 1.5” | 90–105 gpm |
| 2” | 132–143 gpm |
Key Benefits of Air Diaphragm Pumps
- Self-Priming & Dry-Run Capable: Operate safely without liquid and withstand dry-running—ideal for transfer, circulation, and waste handling.
- Exceptional Chemical Compatibility: Engineered for harsh solutions including acids, cleaners, plating baths, and abrasive slurries.
- Non-Electric, Air-Powered Design: Safe for hazardous or explosive environments where electrical pumps are not permitted.
- Adjustable Flow & Pressure: Simple control through air regulation—no complex speed controllers required.
- Durable, Low-Maintenance Construction: Minimal moving parts, easy serviceability, and long service life reduce downtime and operating costs.
Why PSI Is Your Pump Partner
PSI doesn’t just supply pumps—we help you select, integrate, and maintain the right equipment for your finishing line.
- Your trusted knowledge source for pump selection and troubleshooting
- We save you time with expert guidance and fast access to leading brands
- We reduce your costs with durable, long-life solutions
- We empower you to achieve better throughput and reliability
- Your single-source partner for all metal finishing equipment and chemistry
Flow Rate Capabilities
(Based on water viscosity at 100 psi air pressure)
| Pump Size | Max Flow Rate |
|---|---|
| ¼” | 20 gpm |
| ½” | 15–16 gpm |
| 1” | 45–48 gpm |
| 1.5” | 90–105 gpm |
| 2” | 132–143 gpm |
Key Benefits of Air Diaphragm Pumps
- Self-Priming & Dry-Run Capable: Operate safely without liquid and withstand dry-running—ideal for transfer, circulation, and waste handling.
- Exceptional Chemical Compatibility: Engineered for harsh solutions including acids, cleaners, plating baths, and abrasive slurries.
- Non-Electric, Air-Powered Design: Safe for hazardous or explosive environments where electrical pumps are not permitted.
- Adjustable Flow & Pressure: Simple control through air regulation—no complex speed controllers required.
- Durable, Low-Maintenance Construction: Minimal moving parts, easy serviceability, and long service life reduce downtime and operating costs.
Why PSI Is Your Pump Partner
PSI doesn’t just supply pumps—we help you select, integrate, and maintain the right equipment for your finishing line.
- Your trusted knowledge source for pump selection and troubleshooting
- We save you time with expert guidance and fast access to leading brands
- We reduce your costs with durable, long-life solutions
- We empower you to achieve better throughput and reliability
- Your single-source partner for all metal finishing equipment and chemistry
