Main applications ynk
- Boiler feed systems
- Energy
- Nuclear Power Stations
- Power Stations < 100 MW
- Power Stations > 100 MW
- Turbine Island
Technical data
- Q max 3,700.0 m³/h
- H max 250.0 m
Design ynk
Horizontal radially split single-stage double-entry boiler feed booster pump (booster system) with cast steel single or double volute casing.
Application pump ynk
Pumping feed water in power stations and industrial plants.
Drive pump ynk
▪ Electric motor
▪ Turbine via gear
Desing Details pump ynk
Design
▪ Radially split volute casing pump with radial impeller
▪ Volute casing (single or double volute)
▪ Connected by means of studs with covers inserted and flange-mounted on either side
▪ Horizontal installation
▪ Double-entry
▪ Single-stage
Direction of rotation
▪ Depends on casing position and nozzle orientation
▪ Clockwise or anti-clockwise, viewed from the drive
Suction nozzle
Connection type 1:
▪ Suction nozzle with flange connection to DIN EN 1092-1, raised face type B
▪ Suction nozzle with flange connection to ASME Class 300, raised face type RF
Connection type 2:
▪ Weld end
Impeller type
▪ Closed double-entry radial impeller with multiply curved vanes
Axial thrust balancing
▪ Hydraulically by double-entry impeller
▪ Absorption of residual axial thrust by pivoted segmental thrust bearing
Bearings
▪ Forced oil lubricated radial plain bearings and pivoted segmental thrust bearings
Shaft seal
▪ Single mechanical seal
– Uncooled
– With jacket cooling
– With mating ring cooling
– With circulation cooling
▪ Replaceable shaft sleeve
Overview of technical data ynk
| Q (50Hz) | 150.0 – 3,700.0 (m³/h) |
| H (50Hz) | 30.0 – 250.0 (m) |
| Type of bearing | Plain bearings |
| Casing partition | Radially split |
| Drive frequency | 50 Hz /60 Hz |
| Type of drive | Electric motor, turbine |
| 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 | Pressurized oil lubrication |
| Max. permissible fluid temperature | 210.0 (°C) |
| Nozzle position | Variable |
| Maximum operating pressure | PN 40 |
| Pump set location | Dry installed |
| Suction characteristics | Non-priming |
| Type of casing | Volute casing |
| Type of impeller | Closed, Radial |
| Type of connection | Flange, weld ends |
| eClass assignment | 36410100, 36410101, 36410000 |
| Installation position | Horizontal |
| Shaft seal type | Mechanical seal |
| Main applications | Energy |
| Casing material | Cast stainless steel |
| Maximum discharge-side pressure | 40.0 (bar) |
| Maximum drive rating | 3000.0 (kW) |
| Type of installation | Stationary |
| Maximum speed of rotation | 1800.0 (1/min) |
