HOW THE ORIFICE & PRV SIZING BE HAPPENED -- EXPLAIN IN BRIEF

Question Posted / shailender

3 Answers
6648 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

HOW THE ORIFICE & PRV SIZING BE HAPPENED -- EXPLAIN IN BRIEF..

Answer / sanchayan

Orifice sizing can be best done as per BS1042-1991 VERSION,
SECONDLY ORIFICE SIZING IS DONE DUE TO THE FOLLOWING MAIN
CONSIDERATIONS:-
1) ABSOLUTE PRESSURE -DENSITY CALCULATION&DP/P1
2) ABSOLUTE TEMPERATURE-Density calculation& thermal
expansion
3)ABSOLUTE VISCOSITY- for viscosity calculation as it is
directly proportional to temperature and inversely
propotional to temperature.

Is This Answer Correct ?

3 Yes

2 No

HOW THE ORIFICE & PRV SIZING BE HAPPENED -- EXPLAIN IN BRIEF..

Answer / guest

orifice sizing according to L.K.Spink's orifice sizing formula.

Is This Answer Correct ?

1 Yes

3 No

HOW THE ORIFICE & PRV SIZING BE HAPPENED -- EXPLAIN IN BRIEF..

Answer / ankit

0.68 x d where d= dia. of pipe

Is This Answer Correct ?

1 Yes

5 No

Post New Answer

More Instrumentation Interview Questions

square root calculation for dp flow transmitter? give me a explanation with example

3 Answers

what is hot loop check and cold loop check.

3 Answers Bapco Bahrain Petroleum Company,

what is the thermocuple compensation circuit

3 Answers

i m passed my engineering in 2010 in instrumentation and control engineering. my question is can i apply for software jobs or vacancies.??????????? plz give me answer soonnn......

2 Answers

Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.

0 Answers Essar, Sail,

Why flow/pressure transmitter before control valve?

0 Answers UPL,

why we use negative 24vdc to a proximeter

4 Answers KNPC,

where Pirani gauges are uesd in case of pressure measurement?

3 Answers

i am confusing about differential pressure transmitter as i seen so many DPTs in different ranges how can we calculate level and flow with mmh20 plz tel me

1 Answers

If a control valve is hunting means means if we are giving 50% to the cv, the cv will open at 51% then slowly slwoly it will reaches 49% , so what to do for solve this problem. The cv is double acting and mounted for anti surge operation, it having 4 nos. volume booster, one sov, one positioner, etc..?

0 Answers QAFCO,

what are the sensor types of vibration&speed?n what is proximity sensor?

3 Answers

There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?

0 Answers

For more Instrumentation Interview Questions Click Here