DESMI ESLHT horizontal end suction centrifugal pump designed for high media temperatures for boiler water application and district heating applications up to 180°C.
Concept Features
- Duplex stainless steel shaft.
- Closed impeller design to achieve high efficiency even in small capacity pumps.
- Carbon sleeve bearing as main bearing to obtain optimal performance in self-lubrication and heat resistance.
- Balanced mechanical shaft seal to increase sealing reliability by its less seal face wear / heat development.
- Separate shaft seal chamber with cooling fins located away from main pump casing to protect shaft seals from heat transfer.
- Back pull design without disturbing pump casings and external pipes during maintenance.
- Automatic air vent valve on top of shaft seal chamber to prevent dry run and/or overheating seal.
- Air fan on flexible coupling for cooling of bearing and shaft seal arrangement.
Application areas
- High temperature water circulation.
- District heating purposes.
| Nominal diameter (DN) | 25 to 65 |
| Flow rate – 50 Hz | Up to 100 m³/h (440 US gpm) |
| Flow rate – 60 Hz | Up to 120 m³/h (530 US gpm) |
| Head | 65 m (220 ft) |
| Pressure | Up to 30 bar (435 psi) |
| Temperature | Up to 180°C (365°F) |
| Motor | IEC/EN or NEMA standard |
| VFD | Direct or Bulkhead/Wall-mounted |
