FT series feed pump
key word：Heat exchange element
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Product description
FT series feed water pump
1. Introduction
1.1. Application
FT series feed water pump is mainly used in 600MW steam turbine generator set as starting pump and gas turbine generator set.
1.2. Model meaning
FT-**-##-$$-&&
FT --- code of FT series feed water pump
**--------Impeller stages
##------------Hydraulic model model
$$------------- impeller outer diameter nominal size (cm)
&&-------------------M for mechanical seal / no letter for common labyrinth seal
Example: FT7K40m indicates that the series code of this type of feed water pump is FT, the number of impeller stages is 7, the hydraulic model number is K, the nominal size of impeller outer diameter is 40cm, and the mechanical seal.
1.3. Structural features (see figure 4-1)
1.3.1. Horizontal, horizontal and segmental structure.
1.3.2. The pump shell includes the inlet section, the outlet section and the middle section (sealed by 8 bolts with a certain pre tightening force).
1.3.3. Hydraulic tools are used for bolt pre tightening, which is fast and simple.
1.3.4. The inlet and outlet pipes are connected by flange.
1.3.5. Various shaft end seals.
1.3.6. Excellent rotor design.
1.3.7. Advanced casting process and structural design.
1.3.8. Easy to assemble.
2. Main technical parameters and product appearance
2.1. Main technical parameters
2.1.1. Typical technical parameters (see table 4-1).
Table 4-1 typical technical parameters of FT series feed water pump
| Model | Impeler stages | Nominal dimensions of inlet diameter | Nominal dimensions of outlet diameter | Flow | Head of single stage | Speed | Efficiency |
| X | （mm） | （mm） | （m3/h） | （m3/h） | （r/min） | （%） | |
| FTXG34 | 4～11 | 250 | 175 | 300 | 140 | 2985 | ＞80 |
| FTXK40 | 4～8 | 250 | 175 | 400 | 210 | 2985 | ＞78 |
| FTXY36 | 4～9 | 300 | 175 | 440 | 165 | 2985 | ＞79 |
| FTXS39 | 6～10 | 300 | 250 | 600 | 211 | 2985 | ＞78 |
| FTXE39 | 4～8 | 300 | 250 | 700 | 168 | 2985 | ＞80 |
2.1.2. Parameter curve. The flow head curve of ft4k40 feed water pump is shown in Figure 4-2
2.2. Product appearance (see Figure 4-3)
3. Scope of supply
3.1. Feed pump body: including anchor bolt, nut, gasket, body pipe and valve, etc.
3.2. Thermal instrument: including various instruments and accessories of thermal measurement monitoring, control and protection system of pump unit.
3.3. Special tools: including hydraulic tension device, balance drum disassembly tool, thrust plate disassembly tool, socket wrench, etc.
3.4. Spare parts that can be provided on demand: including dynamic and static ring of mechanical seal, O-ring, winding gasket, bearing bush, thrust pad, etc.
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