Pump type BB1– According to API 610
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Design:
- Horizontal, axially split, one-and two stage between bearings
- Double suction impeller
- Single or double volute, depending on size
- Diffuser or overflow piece after first stage for two stage execution
- Driving from both sides possible
- Mechanical seals (single, double, tandem)
- Oil lubricated rolling bearings with rotor located by the non drive end for residual hydraulic axial thrust from hydraulically balanced impeller
- Radial as well as axial loads can be also taken by oil lubricated bearings
Description
- Oil and Gas
- Petrochemical
- Steel complex and mining
- Power Plant
Product features
Features:
- Low NPSH required in case of double suction impeller
- Suction and discharge nozzles in botoon half of the casing
| Type of bearing | Rolling element and plain bearings |
| Casing partition | Axially split |
| Drive frequency | 50 Hz /60 Hz |
| Type of drive | Electric motor |
| Drive voltage | Low voltage, high voltage |
| No. of impeller entries | Double entry |
| Type of installation | Long-coupled |
| Type of coupling | Direct; Gear |
| Type of lubrication | grease-/oil- and product lubrication |
| Max. permissible fluid temperature | 200 °C |
| Min. permissible fluid temperature | -45 °C |
| Nozzle position | In-line |
| Pump set location | Dry installed |
| Suction characteristics | Non-priming |
| Type of casing | Volute casing |
| Type of impeller | Radial; Closed |
| Type of connection | Flange |
| Maximum head | Up to 800 m per stage |
| Installation position | Horizontal or vertical |
| Shaft seal type | Gland packing; Mechanical seal |
| Main applications | Energy; Industry and process engineering; Mining / Dredges |
| Casing material | Cast iron; Nodular cast iron; Cast duplex steel; Ni-Resist |
| Maximum discharge-side pressure | 150 bar |
| Maximum drive rating | 3300 kW |
| Type of installation | Stationary |
| Maximum flow rate | 15000 m³/h |
| Minimum flow rate | 1200 m³/h |
| Maximum speed of rotation | 1800 1/min |
Usages:
Applications:
Pumping of:
- crude oil
- petroleum products
Exploitation:
- pipeline
- offshore industry
- fire fighting services
Advantages:
- Branches on bottom half of the casing, therefore the pipe works do not have to be disturbed for inspection (overhaul)
- Short inspection time
- Wide choice of hydraulics
- Possibility to install different impellers in exiting casing (especially valid for one stage pumps) – improving the economy of the installation
- Reduced radial thrust and bearings loads
- Reduced shaft deflection at seals
- Interchangeable wearing parts
- NPSH, efficiency and casing stiffness better as OH1 and OH2
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