Fluid-o-Tech
PA3511 / PA 3511 Fluid-o-Tech 125 GPH 2.08 GPM Standard Bypass Stainless Steel Rotary Vane Pump
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Fluid-o-Tech PA 3511 Stainless Steel Rotary Vane Pump (125 GPH, Standard Bypass)
The Fluid-o-Tech PA 3511 is a high-volume, positive displacement rotary vane pump engineered for demanding commercial and light-industrial applications requiring consistent, high flow at moderate pressure. This specific model is typically supplied with a Stainless Steel housing, making it highly resistant to corrosion and suitable for demineralized water and aggressive liquids. It is widely used in high-capacity beverage dispensing, large cooling systems, and medium-scale Reverse Osmosis (RO) booster applications. The pump features a built-in adjustable bypass valve to protect the system from unexpected pressure spikes. Utilizing a stainless steel rotor and carbon graphite vanes, the PA 3511 is designed for direct clamp mounting to an external motor and is rated for a maximum static pressure of 290 PSI (20 Bar), ensuring quiet, pulsation-free, and efficient continuous operation.
Specifications Table
| Characteristic | Specification | Units / Notes |
| Model | PA 3511 | Rotary Vane Pump (High Capacity) |
| Pump Type | Rotary Vane Pump | Positive Displacement |
| Housing Material | Stainless Steel (AISI 303) | Corrosion-Resistant |
| Rotor/Vane Material | Stainless Steel / Carbon Graphite | - |
| Nominal Flow Rate | 123 (2.05) | GPH (GPM) at 1725 RPM, 100 PSI (approximate) |
| Max Static Pressure | 290 (20) | PSI (Bar) |
| Max Operating Pressure | 230 (16) | PSI (Bar) |
| Internal Bypass | Yes | Built-in adjustable relief valve |
| Max Operating Temperature | 158 (70) | F (C) |
| Nominal Speed | 1,725 | RPM (for 60 Hz operation) |
| Port Connections | 3/8" NPT | Threaded |
| Weight (Approx.) | 2.7(1.2) | lbs (kg) (Clamp mount) |
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