| Description |
Grinder pumps are provided with a cutting system able to chop up paper, little ropes, leather or other fibrous parts present into the sewage water. The grinding pumps are required when the delivery pipes are so narrow that a solid part could clog the pipe itself or when it is needed a pump for sewage water but with an high head. The model GRINDER 100 is always provided with a small control box at the end of the cable including a manual reset amperometric protection: this kind of protection is necessary for grinder pumps to avoid that the motor can get burnt in case a too hard solid part blocks the cutting system. |
| Use |
The GRINDER 100 is usually installed into houses' pits to pump the domestic sewage water. This model cannot be used to pump water containing stones or hard solid parts (e.g. pieces of wood or metal) or when the content of solid parts (such as paper) is too elevated.. |
| Operation conditions |
Max liquid temperature: 50 °C (122 °F) pH: 6-10 Max density < 1100 kg/m³ Max immersion depth: 5m |
Performance curve:
| Model | Head (m) | |||||||||
| 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | ||
| Capacity | ||||||||||
| GRINDER 100 | L/min | 170 | 159 | 146 | 130 | 110 | 88 | 62 | 30 | 0 |
| m3/h | 10,2 | 9,5 | 8,8 | 7,8 | 6,6 | 5,3 | 3,7 | 1,8 | 0 | |
| L/s | 2,83 | 2,65 | 2,43 | 2,17 | 1,83 | 1,47 | 1,03 | 0,50 | 0 | |
Technical characteristics:
| Outlet | 2" - DN 50 vertical threaded |
| Solid passage | --- |
| Cutting system | Composed by a fix cutting ring and a rotating knife |
| Impeller | Back open impeller "vortex" type. |
| Mechanical seal | Double mechanical seal in oil chamber. The lower one in silicum carbide / silicum carbide / NBR, the upper one in silicum carbide / graphite / NBR + NBR oil seal. |
| Motor | Dry. Insulation class: F |
| Motor protection | Automatic reset built-in thermal protection + manual reset in an external control box at the end of the cable |
| Float-switch |
The pump is supplied only with float-switch |
| Cable |
10 meters cable H07RNF 3G1 with control box at the end of the cable and with plug |
| Capacitor | 30μF - 450V |
| IP | 68 |
Electric characteristics:
| Model | Power | Nos. poles | R.p.m. | Voltage | Ampere |
| GRINDER 100 | 1.0 HP - 0.75kW | 2 | 2850 | 230V/50Hz/1 | 6,1 A |
Materials:
| Cutting system | Stainless steel AISI 440 tempered |
| Impeller | Cast-iron GG 20 |
| Pump cover | Cast-iron GG 20 |
| Motor case | Cast-iron GG 20 |
| Pump body | Cast-iron GG 20 |
| Pump support | Cast-iron GG 20 |
| Motor shaft | Stainless steel AISI 420 |
| Packing set | NBR |
Weight and dimensions:
| Model | Outlet | Dimensions (mm) | Weight | ||||
| female threaded | A | B | C | D | E | (kg) | |
| GRINDER 100 | 2" - DN 50 | 460 | 290 | 295 | 255 | 490 | 27 |
Optionals:
| Connections | Professional straight brass connection 2" in three pieces |
| Standard straight plastic connection 2" in one piece (supplied with the pump as a standard) | |
| No-return valve | Professional ball check valve threaded 2" in cast-iron |
| Float-switch | 10 or 20 metres cable float-switch to be connected to an electric board in case it is not possible to use the standard float-switch connected to the pump |
| Electric board | The model GRINDER 100 is already supplied with a small control box at the end of the feeding cable including a manual reset amperometric protection. An additional electric board model F5-0.5/3-1 is necessary only in case a 10 metres cable float-switch must be used instead of the standard float-switch connected to the pump. |
GRINDER 100 ENG - REV. 2.0 - 03/12/2018
Detail file:
