GP5120
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; stainless plungers with hardened metal coating; nitrile with fabric reinforcing; stainless steel valves; machined stainless steel manifold.
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SPECIFICATIONS
| U.S. | Metric | |
|---|---|---|
| Max Flow | 10.5 GPM | 40 L/min |
| Max Discharge Pressure | 8700 PSI | 600 bar |
| Speed | 1000 RPM | |
| Plunger Diameter | 0.787″ | 20 mm |
| Stroke | 1.81″ | 46 mm |
| Maximum Inlet Pressure | 145 PSI | 10 bar |
| Crankshaft Diameter | 35 mm | |
| Max Temperature | 140 ºF | 60 ºC |
| Inlet Port | (2) 3/4″ BSP | |
| Discharge Port | (2) 1/2″ BSP | |
| Shaft Rotation | Top of Pulley Towards Manifold | |
| Crankcase Oil Capacity | 1.2 gal | 4.6 L |
| Weight | 181 lbs. | 82 kg |
| NPSH Required | 27.9 ft.-head | 8.5 mWs |
| Key Component Material | ||
| Manifold | Stainless Steel | |
| Plungers | Solid Ceramic Oxide | |
| Valves | High Grade Stainless Steel | |
| Seals | Aramide/Teflon Packing | |
| Gear End | Spheroidal Cast Iron | |
Click the image to enlarge
HORSEPOWER SPECIFICATIONS
| RPM | GPM | 5000 PSI | 6000 PSI | 7250 PSI | 8700 PSI |
|---|---|---|---|---|---|
| 500 | 5.3 | 18.3 | 21.9 | 26.5 | 31.8 |
| 600 | 6.4 | 21.9 | 26.3 | 31.8 | 38.2 |
| 700 | 7.4 | 25.6 | 30.7 | 37.1 | 44.5 |
| 800 | 8.5 | 29.2 | 35.1 | 42.4 | 50.9 |
| 900 | 9.5 | 32.9 | 39.5 | 47.7 | 57.2 |
| 1000 | 10.6 | 36.6 | 43.9 | 53.0 | 63.6 |
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 #09784 | |||
| 36 | 07023 | O-Ring | 3 |
| 38 | 07303 | O-Ring | 3 |
| 39 | 04492 | Grooved Ring | 3 |
| 41 | 07783 | Spiral Ring | 6 |
| 41A | 04475 | Guide Ring | 3 |
| 44 | 07150 | O-Ring | 3 |
| 45 | 04493 | Support Ring | 3 |
| 47 | 06266 | Support Ring | 3 |
| 48 | 07150 | O-Ring | 3 |
| Valve Assembly Kit – Part #09787 | |||
| 47 | 06266 | Support Ring | 3 |
| 48 | 07150 | O-Ring | 3 |
| 51 | 04513 | Valve Assembly | 6 |
| 53 | 05972 | O-Ring | 3 |
| Oil Seal Kit – Part #09783 | |||
| 32 | 13037 | Grooved Ring | 3 |
| 32A | 08346 | Support 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.
