GP7255AGB
A German-made reciprocating triplex plunger pump.
Features:
Attached gearbox; spheroidal cast iron crankcase with 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. Comes equipped with an integrated oil cooling system.
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SPECIFICATIONS
| U.S. | Metric | |
|---|---|---|
| Max Flow (Continuous) | 65.8 GPM | 250 L/min |
| Max Discharge Pressure (Continuous) | 1500 PSI | 100 bar |
| Speed (Continuous) | 700 RPM | |
| Max Flow (Intermittent) | 80 GPM | 303 L/min |
| Max Discharge Pressure (Intermittent) | 2000 PSI | 140 bar |
| Speed (Intermittent) | 851 RPM | |
| Inlet Pressure | 145 PSI | 10 bar |
| Plunger Diameter | 2.17″ | 55 mm |
| Stroke | 2.0″ | 52 mm |
| Max Temp | 140 ºF | 60 ºC |
| Crankshaft Diameter | 48 mm | |
| Crankcase Capacity | 1.7 gal | 6.3 Liters |
| Weight | 418 lbs. | 190 kg |
| Inlet Ports | (2) 2-1/2″ NPT | |
| Discharge Ports | (2) 1-1/4″ NPT | |
| Shaft Rotation | Top of Pulley Towards Manifold | |
| Shaft Mounting | Either Side | |
| Key Component Material | ||
| Manifold | Nickel-Plated Cast Iron | |
| Plunger | Solid Ceramic Oxide | |
| Valves | Duplex Steel | |
| Seals | Nitrile fabric reinforcing | |
| Gear End | Spheroidal Cast Iron | |
Click the image to enlarge
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
Horsepower Requirements
The ratings shown are the power requirements for the pump. Gas engine power outputs must be approximately twice the pump power requirements shown above.
We recommend a 1.15 service factor be specified when selecting an electric motor as the power source. To compute specific pump horsepower requirements use the following formulas:
Electric HP = (GPM X PSI)/1450
as HP = (GPM X PSI)/1100
*Engine power varies based on horizontal or vertical orientation, as well as by makes and models from each manufacturer.
REPAIR KITS
| ITEM# | PART# | DESCRIPTION | Qty. |
|---|---|---|---|
| Plunger Packing Kit – Part #09220 | |||
| 38A | 13156 | O-Ring | 3 |
| 38B | 07721 | O-Ring | 3 |
| 39A | 07723 | Grooved Ring | 3 |
| 41 | 13158 | Support Ring | 3 |
| 42 | 07711 | V-Sleeve | 6 |
| 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 |
| Oil Seal Kit – Part #09221 | |||
| 32 | 07624 | Radial Shaft Seal | 3 |
| 33A | 07627 | O-Ring | 3 |
Repair Kits Available
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.
