Blue Ascend Cast Iron Body Helical Gear Pump - Group 20 (DPH20)
The Blue Ascend DPH20 brings the noise-reduction benefits of helical gear technology to a proven cast iron pump body. Part of the silent series, this pump suits applications where acoustic performance matters alongside pressure capability. Rated to 280 bar across most of the range, the DPH20 covers 3.9 to 27.9 cc/rev with 11 displacement options — making it a direct helical alternative to the DKP20 where quieter operation is required.
Key Specifications:
- Displacement range: 3.9 – 27.9 cc/rev
- Maximum pressure: 280 bar (most variants); tapering to 200 bar at largest
- Maximum speed: up to 3,500 rpm
- Minimum speed: 600 – 650 rpm
- Body material: Spheroidal cast iron
- Gear type: Helical (silent series)
| Pump Type | Displacement (cc/rev) | Max. Pressure (bar) | Max. Speed (rpm) | Min. Speed (rpm) |
| DPH20.040 | 3.9 | 280 | 3500 | 650 |
| DPH20.060 | 5.9 | 280 | 3500 | 650 |
| DPH20.080 | 8.0 | 280 | 3500 | 650 |
| DPH20.095 | 9.4 | 280 | 3500 | 600 |
| DPH20.115 | 11.4 | 280 | 3000 | 600 |
| DPH20.140 | 13.9 | 280 | 3000 | 600 |
| DPH20.160 | 16.0 | 280 | 3000 | 600 |
| DPH20.190 | 19.2 | 280 | 3000 | 600 |
| DPH20.220 | 21.9 | 240 | 2500 | 600 |
| DPH20.250 | 24.8 | 220 | 2500 | 600 |
| DPH20.280 | 27.9 | 200 | 2200 | 600 |
