P328
An American-made triplex plunger positive displacement pump with reciprocating plungers for direct or belt drive applications.
Features:
Aluminum 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 forged brass manifold.
Options:
Gearbox and bell housings (to connect to gasoline, diesel, electric or hydraulic drive), couplers (Aluminum or Delrin), unloader/regulator, fixed or adjustable chemical injector, thermal relief valve and pulsator valve.
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SPECIFICATIONS
| U.S. | Metric | |
|---|---|---|
| 3450 RPM | ||
| Flow | 4.1 GPM | 15.5 L/min |
| Nominal Pressure | 3200 PSI | 220 bar |
| Power Required (Nominal) | 9.0 hp | 6.7 kW |
| Intermittent Pressure | 3500 PSI | 240 bar |
| Power Required (Intermittent) | 9.9 hp | 7.4 kW |
| Maximum Inlet Pressure | 145 PSI | 10 bar |
| Maximum Temperature | 160 °F | 70 °C |
| Plunger Diameter | 0.63″ | 16 mm |
| Stroke | 0.31″ | 8.0 mm |
| Crankshaft Diameter | 24 mm | |
| Crankshaft Rotation | Top of Pulley Towards Manifold | |
| Crankshaft Mounting | Either Side | |
| Inlet Ports | (2) 1/2″ BSP | |
| Discharge Ports | (2) 3/8″ BSP | |
| Oil Capacity (short) | 14.2 fl. oz. | 0.42 L |
| Oil Capacity (extended) | 17.0 fl. oz. | 0.5 L |
| Weight | 16 lbs. | 7.3 kg |
| Key Component Material | ||
| Manifold | Forged Brass | |
| Plungers | Solid Ceramic Oxide | |
| Valves | High Grade Stainless Steel | |
| Seals | Nitrile With Fabric Reinforcing | |
| Gear End | Aluminum Die-Cast | |
Click the image to enlarge
HORSEPOWER SPECIFICATIONS
| RPM | GPM | 1000 PSI | 1500 PSI | 2000 PSI | 2500 PSI |
|---|---|---|---|---|---|
| 500 | 0.13 | 0.1 | 0.1 | 0.2 | 0.2 |
| 1000 | 0.26 | 0.2 | 0.3 | 0.4 | 0.4 |
| 1750 | 0.46 | 0.3 | 0.5 | 0.6 | 0.8 |
| 3000 | 0.78 | 0.5 | 0.8 | 1.1 | 1.3 |
| 3200 | 0.83 | 0.5 | 0.9 | 1.1 | 1.4 |
| 3450 | 0.9 | 0.6 | 0.9 | 1.2 | 1.6 |
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 #0507 | |||
| 23 | 07767 | Grooved Seal | 3 |
| 23A | 06315 | Grooved Seal | 3 |
| 24 | 07768 | Pressure Ring | 3 |
| Valve Assembly Kit – Part #09116 | |||
| 31 | 07853 | O-Ring | 6 |
| 32x | 07946A | Valve Assembly Complete | 6 |
| 33 | 07913 | O-Ring | 6 |
| Oil Seal Kit – Part #09144 | |||
| 19 | 08356-0010 | Oil Seal | 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.
