Single acting ON-OFF valve. it is air to open. when sov energized , valve will be open, so during that if air fail then what will be the condition of valve ( open or close ) ???
Answer Posted / kausar
If it has airlock then it will be remain same because at the time of pneumatic failure it locks the air automatically.generally now with control valve airlock,booster ,sov and air filter regulator are arranged in order to make the line safe
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
what is the current pay package for an instrumentation engineer having 2 years of experience in cryogenic technology???????
why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?
Hi my friends Is any one who can assist me in knowing the typical interview questions for system engineer at General Electric pty Ltd
how to commission furnace ( water heater)
Differentiate between ultrasonic flowmeter and radar type flow meter
How to convert Differential pressure to flow in TPH
What materials are used in thermo wells?
what is commisioning procedure,2)what is is the main work in commisioning in the field tx to dcs, plz send me detail
how to relay switch sense the fault?
䑰ҕ䔈ҕ䖠ҕ䘰ҕ䛀ҕ䝐ҕ䟐ҕ䢐ҕ䥐ҕŹ
What is rang ability?
What is the difference between modbus,fieldbus & profibus
State some of balance principle’ advantages?
What are different types of valves?
how can i check vortex shedder bar it is ok? if there is ohms condition are shown correct?