GP7255A
A German-made reciprocating triplex plunger pump.
Features
Spheroidal cast iron crankcase with sight glass and vented dipstick; forged, through-hardened, ground and polished crankshaft; bronze connecting rods; hardened stainless steel plunger bases; solid ceramic plungers; nitrile seals with fabric reinforcing; stainless steel valves and nickel-plated Spheroidal cast iron manifold.
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 | 65.8 GPM | 250 L/min |
| Maximum Discharge Pressure | 1500 PSI | 100 bar |
| Crankshaft Speed | 700 RPM | |
| Power | 68.0 HP | 51.0 KW |
| Intermittent Flow | 80 GPM | 303 L/min |
| Intermittent Discharge Pressure | 2000 PSI | 140 bar |
| Intermittent Crankshaft Speed | 851 RPM | |
| Intermittent Power Consumption | 110.0 HP | 82.0 kW |
| Max Temperature | 140 °F | 60 °C |
| Inlet Port Size | (2) 2-1/2" NPT | |
| Discharge Port Size | (2) 1-1/4" NPT | |
| Plunger Diameter | 2.17 in. | 55 mm |
| Stroke | 2.0 in. | 52 mm |
| Maximum Inlet Pressure | 29 PSI | 2 bar |
| Crankshaft Diameter | 2.0 in. | 51.5 mm |
| Crankshaft Rotation | Top of Pulley Towards Manifold | |
| Key Width | 0.6 in. | 14 mm |
| Crankshaft Mounting | Either Side | |
| Crankcase Oil Capacity US | 1.7 gal | 6.5 L |
| Weight | 374 lbs. | 170 kg |
| Manifold Material | Nickel-Plated 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 below 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 #09220 | |||
| 38A | 13156 | O-Ring | 3 |
| 38B | 07721 | O-Ring | 3 |
| 39A | 07723 | Grooved Ring | 3 |
| 42 | 07711 | V-Sleeve | 6 |
| Oil Seal Kit – Part #09221 | |||
| 32 | 07624 | Radial Shaft Seal | 3 |
| 33A | 07627 | O-Ring | 3 |
| Inlet Valve Assembly Kit – Part #09659 | |||
| 51 | 05594 | Inlet Valve Assembly | 1 |
| 56A | 07658 | O-Ring | 1 |
| 56B | 07635 | Support Ring | 1 |
| Large Discharge Valve Kit – Part #09660 | |||
| 52 | 05600 | Discharge Valve Assembly | 1 |
| 55 | 05647 | Valve Spacer | 1 |
| 56A | 07658 | O-Ring | 1 |
| 56B | 07635 | Support Ring | 1 |
| Small Discharge Valve Kit – Part #09661* | |||
| 51B | 05450 | Valve Spring | 1 |
| 51C | 05247 | Valve Plate | 1 |
| 51D | 05596 | O-Ring | 1 |
| 52F | 05599 | O-Ring | 1 |
| 56A | 07658 | O-Ring | 1 |
| 56B | 07635 | Support Ring | 1 |
*The discharge valve seat (item 52E) can be flipped over and used. If it is damaged on both sides, order kit #09660.
Horsepower Specifications
| RPM | GPM | 800 PSI | 1000 PSI | 1300 PSI | 1500 PSI | 2000 PSI* |
|---|---|---|---|---|---|---|
| 479 | 45.0 | 24.8 | 31.0 | 40.3 | 46.6 | 62.1* |
| 531 | 49.9 | 27.5 | 34.4 | 44.7 | 51.6 | 68.8* |
| 585 | 55.0 | 30.3 | 37.9 | 49.3 | 56.9 | 75.9* |
| 638 | 60.0 | 33.1 | 41.4 | 53.8 | 62.1 | 82.8* |
| 700 | 65.8 | 36.3 | 45.4 | 59.0 | 68.1 | 90.8* |
| 851* | 80.0* | 44.1* | 55.2* | 71.7* | 82.8* | 110.3* |
*Intermittent Duty Only
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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.