Difine flashing , Cavitaion & Noise? how to minimize these effects

3 Answers   L&T,

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what should he know if he is an assitent engineer instrumentation in cement industries of experience of 10 - 15 year.

0 Answers  

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What is Hysteresis mean in Instrument?

11 Answers  

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what is 24vdc live and dry supply

0 Answers  

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what is the primary sensing element in flow or pressureand level transmitter?

5 Answers   Power Grid,

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What is the live zero and dead zero

2 Answers   Samsung,

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how to draw a flowchart for swapping two numbers using bit wise operators?

1 Answers  

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what is the difference between Digital output DO signals /Commands for start/stop and Solenoid valves ??

1 Answers  

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what is remote mount with MTA option? (In case of Dual Sensor Vortex Flowmeter,rosemount has written in its catalog drawings).

2 Answers  

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What are the interlocks we have to check during the start up of LP/HP compressor?

0 Answers   Hamsco,

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What are the processes Variables?

4 Answers  

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Calculate the maximum pressure drop that can be allowed to occur across a control valve, so that we can prevent cavitation / flashing from occurring. Use the following formula: Δ P allow = Km (P1 – PvapourA) where, Δ P allow - the maximum allowable differential pressure for sizing purposes, or terminal pressure drop; Km- the valve recovery coefficient from the manufacturer’s catalogue; P1 - absolute inlet fluid pressure; PvapourA - absolute fluid vapour pressure at the inlet temperature; Use Atmospheric pressure = 101.3 kPa, P1 = 1200 kPa(g), PvapourA = 4 kPa, KM = 0.72

0 Answers  

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