Description
The 2SF30ES is a compact, high-speed direct-drive plunger pump from the Cat Pumps 2SF Series. Specifically designed to mount directly to an electric motor, this pump is a popular choice for light-to-medium duty industrial cleaning, misting, and car wash applications where space is at a premium.
Technical Specifications
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Flow Rate: 3.0 GPM (11.4 LPM)
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Max Pressure: 1500 PSI (103 bar)
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Speed: 3450 RPM (High-speed motor compatibility)
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Shaft Diameter: 5/8″ Hollow Shaft (designed for NEMA 56C motors)
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Inlet Port: 3/8″ NPT(F)
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Discharge Port: 3/8″ NPT(F)
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Max Liquid Temp: 160°F (71°C)
Key Features
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Direct Drive Efficiency: The 3450 RPM rating allows this pump to be coupled directly to a standard high-speed electric motor, eliminating the need for bulky pulleys or belt-drive maintenance.
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Built-in Regulator: Most 2SF models include an integrated regulating unloader, simplifying system plumbing and providing built-in pressure protection.
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Solid Ceramic Plungers: Includes precision-polished alumina ceramic plungers that offer extreme hardness and resistance to heat, protecting the seals from premature wear.
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High-Pressure Seals: Features proprietary Cat Pumps seal designs that are cooled and lubricated by the pumped liquid.
Maintenance & Repair Kits
To keep the 2SF30ES running efficiently, use these specific Cat Pumps service kits:
| Kit Description | Part Number | Quantity Required |
| Seal Kit | 31983 | 1 Kit per pump |
| Valve Kit | 34152 | 1 Kit per pump |
| Pump Oil (21 oz) | 6107 | ISO 68 Non-Detergent |


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