Horizontal, centrifugal, double-casing, multi-stage sectional type pump with a radially split casing. High pressure pump. A steam turbine can be used as a drive.
Ability to apply technology TORO
- Pump type Centrifugal
- Installation method Horizontal
- Flow 65 - 1500 m³/h
- Pressure range 1500 - 4500 m
- Efficiency up to 84%
- API-610 classification BB5
PTM series pumps are designed to supply water to stationary steam boilers
- Equal-strength outer casing is cast from a high-strength forging and undergoes hydro-testing at a pressure of 60 MPa
- The unloading drum of the pump helps to reduce the residual axial force
- Axial force remains constant even with increased wear gaps
- Minimum load on thrust and thrust bearings
- Bearing housings with attachment to the pump housing around the entire circumference
- Internal sectional housing with enclosed multi-channel guide vanes minimizes hydraulic radial forces in any condition, down to minimum feed
- The system of axial fixation of the impellers on the shaft makes it possible to locally unload the axial force, which makes it possible to avoid the use of loaded threaded elements in the flow part of the pump
- The use of high-speed plain bearings with an oil damper system allows to reduce the radial clearance in the “rotor-stator” system, increase the rotor rigidity, compensate for misalignments, deviations and bending of the shaft relative to the bearing housing. The double-acting thrust bearing is able to absorb the residual axial load on the rotor, as well as to stably maintain the rigid axial state of the rotor, which is especially important for ensuring increased durability of the mechanical seals and prevents the rotor from jamming in case of off-design axial and radial displacements
- The use of labyrinth seals in bearing assemblies makes it possible to maintain the purity of lubricants at a very high level, thereby multiplying the overhaul cycle of their maintenance.
- The use of block-modular mechanical seals with a built-in thermal barrier with minimal leakage indications, and the possibility of steam flushing during routine maintenance
- Use of high torque nuts to allow assembly/disassembly of the pump without the use of expensive high torque hydraulic tools
- The design of the pump shaft has a stepped backlash-free fit of the impellers
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Pump type
Centrifugal
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Flow
65 – 1500 m³/h
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Efficiency
up to 84 %
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Pump power
up to 7000 kW
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Vibration velocity
no more than 3 mm/s
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Rotor balancing class
G 0.4
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Pumped liquid
up to 200 °С
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Installation method
Horizontal
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Pressure range
1500 - 4500 m
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Rotation frequency
up to 6300 rpm
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Net suction head NPSH
4 - 15 m
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Noise
no more than 85 dB
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Pumped liquid
Hot (feed) water (for heating networks)
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Process line connection type
Flange / Welding
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