GP5128GB Series
WARNING: This product might contain a chemical known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
| Specification | US | Metric |
|---|---|---|
| Flow | 20.6 GPM | 78 L/min |
| Maximum Discharge Pressure | 4060 PSI | 280 bar |
| Crankshaft Speed | 1000 RPM | |
| Power | 57.7 HP | 43 KW |
| Max Temperature | 140 °F | 60 °C |
| Inlet Port Size | (3) 1-1/2" NPT | |
| Discharge Port Size | (2) 1" NPT | |
| Plunger Diameter | 1.1 in. | 28 mm |
| Stroke | 1.81 in. | 46 mm |
| Maximum Inlet Pressure | 145 PSI | 10 bar |
| Crankshaft Diameter | 35 mm | |
| Crankshaft Rotation | Towards Back of Pump | |
| Crankshaft Mounting | Either Side | |
| Crankcase Oil Capacity US | 1.2 gal | 4.6 L |
| Weight | 269 lbs. | 122 kg |
| Manifold Material | Nickel-Plated Spheroidal Cast Iron | |
| Crankcase Material | Spheroidal Cast Iron | |
| Plunger Material | Solid Ceramic Oxide | |
| Valve Material | Stainless Steel | |
| Seal Material | Nitrile with Fabric Reinforcing |
The repair kits listed to the right are available for this pump. If you need further information about these repair kits, or have questions about other specific parts for your pump, please contact you local Giant distributor or contact Giant customer service.
| ITEM# | PART# | DESCRIPTION | Qty. |
|---|---|---|---|
| Plunger Packing Kit – Part #09761 | |||
| 35B | 08183 | O-Ring | 3 |
| 36 | 13228 | Grooved Ring | 3 |
| 37A | 07700 | O-Ring | 6 |
| 40 | 13115 | V-Sleeve | 6 |
| Valve Assembly Kit – Part #09762 | |||
| 46 | 07060 | Valve Assembly | 6 |
| 48B | 13012 | O-Ring | 3 |
| Oil Seal Kit – Part #09230 | |||
| 31 | 13284 | Oil Seal | 3 |
Horsepower Specifications
| RPM | GPM | 1000 PSI | 2000 PSI | 3000 PSI | 4060 PSI |
|---|---|---|---|---|---|
| 600 | 12.4 | 8.6 | 17.1 | 25.7 | 34.7 |
| 700 | 14.4 | 9.9 | 19.9 | 29.8 | 40.3 |
| 800 | 16.5 | 11.4 | 22.8 | 34.1 | 46.2 |
| 900 | 18.5 | 12.8 | 25.5 | 38.3 | 51.8 |
| 1000 | 20.6 | 14.2 | 28.4 | 42.6 | 57.7 |
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Our Company
For 50 years, Giant Pumps has offered the most dependable positive displacement high-pressure triplex pumps available. Designed and built to the highest quality standards, customers count on Giant Pumps products to keep their equipment running. Every design detail of Giant Pumps products is optimized for long-life and reliable performance, making Giant Pumps the most trusted name in high-pressure pumps and systems.