Answer / jigar anadkat

SNUBBER

Answer / jigar anadkat

@ Hitesh : Syphon is used for STEAM Application, Not to
reduce pulsation.

Answer / sajid ali khan

First let me correct the Question itself a little. It
should read " Which mechanical devices are used to minimise
or dampen pulsations in pressure gauges".

Answer:
Process Pulsations expecially those at the dicharge od
reciprocating pumps can be very problematic for
measurement. The pulsations can also make pressure reading
difficult.Frequently, they can even damage pressure gauges
beyond repair and it is important to curtail these such
pulsations.

Normally three devices are used.1) Pigtails, which are
simply a mild steel pipe or Stanless steel tube bent in a
full circle, it is installed between the pressure tapping
and the gauge, with inside diameter a little less than the
tap dia. The Process Pressure dampens while traversing
though the pitail.
2) A restriction damper, that has sometimes a variable
restriction of a conical piece inside a matching chamber.
The process pressure has to squeeze throughh the annualar
space and demapens.
3) A hollow cylindrical chamber, that acts as capacity to
reduce the pulsations.

Sajid Ali Khan
engineersajid52@gmail.com

Answer / hitesh

We Have use syphon for reduce the pulsating.

difference between vaccum and draft

0 Answers  

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Can anyone provide me the details of GAIL test paper?What is the format and what type of questions will be there? my id-princegnb@gmail.com

1 Answers   GAIL,

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A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.

0 Answers   MNC,

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what is axial shift n what is differential expansion in turbine? how many sensor probes r mounted for this n how it works?

2 Answers   Apple,

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what is performance test.need defination

0 Answers   Takreer,

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Linear amplifier.

0 Answers   CCIE,

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WHAT IS A SYMPTOM OF FAULT WITH THE SPAN OF AN INSTRUMENT? 1)ZERO-POINT AND 100% ARE CORRECT BUT NOT A MID-RANGE. 2)ZERO-POINT IS CORRECT ,BUT 1005 INPUT IS NOT GIVING 100% OUTPUT. 3)LINEARITY PRBS. 4)1005 O/p IS CORRECT BUT ZEO POINT IS WRONG.

1 Answers   Reliance,

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Hook up resistance decade box to temp.transmitter.

0 Answers   CCIE,

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Can anybody explain about wellhead control system.

1 Answers  

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what is difference between RTD , thermo couple and thermistor in general ?? (except temperature co-efficient )

5 Answers   Bilt,

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What is Cavitation?

2 Answers   Gujarat Borosil,

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What is the meaning of Feedback? How many types it is? Explain it?

2 Answers   Bharathi Cement,

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