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What would happen if the suction pressure is low in a
boiler feed water pump?
- 7 Answers
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Answers were Sorted based on User's Feedback
Answer / logu
If the pump suction pressure is low the temperature of the
bfw gets reduced and result in cavitation.
| Is This Answer Correct ? | 28 Yes | 8 No |
Answer / zeeshan ch
water will boil out inside the pump cassing due to very low
pressure zone & high temp of the water itself , boiled
bubble will start to make cavities of compressible fluid ,
resulting in pump status as cavitation
| Is This Answer Correct ? | 10 Yes | 0 No |
Answer / neeraj dhar
whjerever the suction side flow is lower than the discharge
then it will lead to starvation of the pump and hence lead
to cavitation. thas the reasopn the pipe suction side of
the pump are usually one side larger then the discharge
side of trhe pum;p
| Is This Answer Correct ? | 12 Yes | 4 No |
Answer / vse
Boiler feed pump minimum suction pressure depends on its operating feed water temperature. At any case the feed water temperature should not over take the saturation point corresponding to its living pressure.
some time there is sudden collapse of pressure in the deaerator due to interlocks / protection , to over come this pump is generally given sufficient NPSH by position.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / siva chukka
If a BFW suction pressure low,boiling point of water decrease,at a temperature water convert into vapour inside casing ,pump head is decreased is called cavitation
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / murali
the pumps will trip on protection. cavitation and charling
in discharge end will take place.
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / kalaisankar
temprature of the boiler increases due to decrease in
water level in the boiler .
| Is This Answer Correct ? | 5 Yes | 9 No |
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