Casappa KAPPA Gear Pumps KP20/KP30/KP40 Specifications
Casappa KAPPA Gear Pumps KP20/KP30/KP40 Specifications
KP = pump; KM = corresponding gear motor. Two-piece cast iron housing. Can be assembled in tandem as multi-section pumps. SAE/European standard flange. Side or rear port options available.
✅ KP20 (KAPPA20)
Displacement range: 4.95 ~ 33.03 cm³/rev
| Model | Displacement cc/rev | Continuous pressure bar | Max speed rpm |
|---|---|---|---|
| KP20.4 | 4.95 | 285 | 4000 |
| KP20.6.3 | 6.61 | 285 | 4000 |
| KP20.8 | 8.26 | 285 | 3500 |
| KP20.11.2 | 11.23 | 275 | 3500 |
| KP20.16 | 16.85 | 260 | 3000 |
| KP20.20 | 21.14 | 210 | 3000 |
| KP20.25 | 26.42 | 180 | 2500 |
| KP20.31.5 | 33.03 | 140 | 2000 |
- Max peak pressure: 330 bar
- Housing: Grey cast iron. Standard rotation: clockwise; counter-clockwise available on request.
- Typical applications: Auxiliary pumps for construction machinery, mini loaders, sanitation equipment, etc.
✅ KP30 (KAPPA Compact 30)
Displacement range: 43.98 ~73.82 cm³/rev
| Model | Displacement cc/rev | Continuous pressure bar | Max speed rpm |
|---|---|---|---|
| KP30.43 | 43.98 | 230 | 3000 |
| KP30.46 | 46.34 | 210 | 3000 |
| KP30.56 | 56.54 | 190 | 2500 |
| KP30.61 | 61.26 | 180 | 2500 |
| KP30.73 | 73.82 | 170 | 2500 |
- Max peak pressure: 220 bar
- Housing: Cast iron. Compact design, smaller footprint than KP40, suitable for medium-pressure, medium-high flow applications.
✅ KP40 / KP40 Plus (KAPPA40 Plus heavy-duty version, ductile iron housing)
Displacement: 61.43 ~180.73 cm³/rev. KP40 Plus is reinforced heavy-duty variant with higher continuous pressure.
| Model | Displacement cc/rev | KP40 Plus Continuous pressure bar | Max speed rpm |
|---|---|---|---|
| KP40.63 | 61.43 | 260 | 2800 |
| KP40.73 | 72.60 | 260 | 2800 |
| KP40.87 | 86.56 | 260 | 2800 |
| KP40.100 | 99.79 | 260 | 2700 |
| KP40.109 | 108.90 | 260 | 2700 |
| KP40.121 | 121.80 | 260 | 2700 |
| KP40.133 | 134.03 | 250 | 2700 |
| KP40.151 | 150.79 | 240 | 2700 |
| KP40.160 | 160.77 | 230 | 2500 |
| KP40.180 | 180.73 | 230 | 2200 |
- Max peak pressure: up to 300 bar
- Housing: Ductile iron, high shock resistance. Commonly used as main pumps for heavy construction machinery.
General Technical Notes
- Fluid: ISO VG32 / VG46 hydraulic oil recommended. Operating oil temperature range: -20 ~ +80℃.
- Mounting: SAE flange; spline shaft or keyed shaft optional. Side port or rear port.
- Tandem assembly: KP20 / KP30 / KP40 can be combined in tandem to make multi-stage pumps (through-drive).
- Remarks: Continuous pressure = recommended long-term working value; peak pressure is for short-time shock load only, not for continuous operation. Actual parameters may vary with seal type, rotation direction and port configuration. Refer to manufacturer datasheet for final selection.
