model DV
Submersible pump
Features and Benefits
- ・Special open type vortex impeller permits foreign matter passing the inlet port to be freely discharged.
- ・As the passage size is uniform from the inlet port to the discharge port, the size of passed foreign matter can be as large as the port diameter.
- ・4 pole induction motor runs with high torque to enhance foreign matter passing.
- ・Built-in motor protector (automatic cut-off for model below 7.5kW and thermal protector over 11kW) protects the motor from overload or open phase.
- ・Optional quick discharge connector facilitates easy installation and maintenance.
- ・DVA model permits automatic operation.
- Parallel alternate operation possible with model DVA and DVJ.
Specifications
| Item | Item | Standard |
| Range | Diameter | 50 to 125mm |
| Power range | 0.4 to 22kW | |
| Synchronous speed | 1800min-1 | |
| Handling liquid | Handling liquid | Sweage, waste water |
| Cunstruction | Impeller type | Vortex |
| Double mech, seal | Up to 3.7kW | |
| Tandem double mech, seal | 5.5kW and over | |
| Bearing | Prelubricated ball bearing | |
| Flange | Rating | JIS 10kgf/cm2 R.F Thin Type |
| Liquid | Max. temperature: Manual Automatid | 0 to 40℃ |
| Max. temperature: Alternate | 0 to 32℃ | |
| Max. spherical solid dia | 50DV-50mm, 65DV-65mm, 80DV-80mm, 100DV-100mm, 125DV-125mm | |
| Max. Submergence | 8m | |
| Materials | Casing | Cast iron |
| Impeller | Cast iron | |
| Shaft | 403 stainless steel | |
| Mech. Seal: Upper | Ceramic/Carbon | |
| Mech. Seal: Lower | SiC/SiC | |
| Motor frame | Cast iron | |
| Bolts and nuts | Stainless steel | |
| Motor | Type | Air-filled submersible motor |
| Insulation class | E | |
| Start system: Direct on line | Up to 7.5kW | |
| Start system: Star-delta | 11kW and over | |
| Built-in overload protector | Up to 7.5kW | |
| Built-in thermal protector | 11kW and over |