can any one pl explain me in brief that how we select the
leakage classification in valve,means for liquid or gas
there is any standard for selecting leakage classification
or its depend upon valve size or any any other parameter.

Answer Posted / anzal

CLASS 2............ 0.5 % OF CV..........MEDIA AIR
CLASS 3............ 0.1 % OF CV..........MEDIA AIR
CLASS 4............ 0.01 % OF CV..........MEDIA AIR
CLASS 5............ 0.0005 ML/MIN.........MEDIA WATER
CLASS 6............ 1 BUBBLE/MINIT.......MEDIA WATER

IN CLASS 6 IT WILL CHANGE DEPENDING ON THE SIZE

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Introduce yourself which is not present in your biodata?

1971


Calibration of controller (pneumatic)

1522


what is the working principal of pribe

1824


Why rdt and thermocouple both give different output .and one things more, how to generate  ohm or mili volt  plz mail me merajalam143545@yahoo.com

2331


How to Calibrate Vortex Flow transmitter in field

779






Can anyone convert a 5/2 way or 3/2 way valve into an ISO valve?

492


What is the purpose of LO Overhead tank in turbines.

1591


What is Cavitation in a control valve?

1568


give eg of how I/P is used in control loops

1505


Explain the key components of control loop?

581


where are following valves are applicable to install. can any valve be installed any line. globe valve butterfly valve boll valve gate valve

1253


What is intrinsic safety mean.

1478


What is instrumentation measurement?

637


What is modbus?

679


Draw a P& ID showing – orifice flange, plate, dp transmitter, isolation & bypass valves and tubing.

1510