Cat Pumps
3CP1221 Cat Pump 4.2 GPM 2000 PSI 1725 RPM 316 Stainless Steel
3CP1221 Cat Pump 4.2 GPM 2000 PSI 1725 RPM 316 Stainless Steel
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3CP1221 Cat Pump 4.2 GPM 2000 PSI 1725 RPM 316 Stainless Steel
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PLEASE REFERENCE DATA SHEETS & TABLE BELOW
CAT 3CP1221 316SS Industrial Plunger Pump
Product Description
The CAT Pump 3CP1221 is a heavy-duty, industrial-grade triplex Plunger Pump designed for continuous use in the most demanding applications, including large commercial Reverse Osmosis (RO), desalination, and high-pressure chemical injection. The entire wet-end is constructed with rugged 316 Stainless Steel manifolds and valve assemblies, offering exceptional durability and corrosion resistance against highly aggressive or salty feedwater. It delivers a powerful combination of high flow and high pressure, operating smoothly at 1,725 RPM for various belt, clutch, or coupling drive configurations.
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Extreme Corrosion Resistance: Features 316 Stainless Steel fluid end for superior performance in seawater (SWRO) and highly corrosive industrial settings.
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High-Flow Output: Delivers a maximum flow of 4.2 GPM, suitable for large-capacity commercial water treatment systems.
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Industrial Pressure: Capable of generating pressure up to 2,000 PSI, providing high-performance capability.
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Robust Construction: Utilizes solid ceramic plungers and high-quality seals for extended service life and reliable operation.
Technical Specifications
| Parameter | Value | Units | Notes |
| Model | 3CP1221 | N/A | Plunger Pump, Pump End Only |
| Max Flow Rate | 4.2 | GPM | High-flow industrial rating. |
| Max Pressure | 2,000 | PSI | High-pressure capability. |
| Material | 316 Stainless Steel (SS) | N/A | Excellent chemical and corrosion resistance. |
| Max RPM | 1,725 | RPM | Standard US motor speed. |
| Inlet Port Size | 1/2" | NPT(F) | Dual inlet ports. |
| Discharge Port Size | 3/8" | NPT(F) | Dual discharge ports. |
| Plunger Bore | 0.709" | Inches | Plunger bore size. |
| Weight (Pump Only) | 14.84 | lbs | Weight of the pump end. |
Critical Operating Limits
| Parameter | Limit | Units |
| Pressure Range | 100 - 2,000 | PSI |
| Max Liquid Temp (NBR) | 160 | deg F |
| Inlet Pressure Range | Flooded to 70 | PSI |
| Crankcase Capacity | 12 | oz |
| Dimensions (Pump Only) | 9.69 x 8.78 x 5.53 | Inches |
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