1) Any pipe line working fluid may water / steam on it one manual isolation valve suppose one side of valve 6 kg/ cm^2 pressure (i.e. up stream) and other side is “ 0” kg/ cm^2 pressure(i.e. down stream) . So how much Tourqe required for opening the valve in terms of Newton force wheather normal man can open this valve. (for reference pipe nominal bore is 100 NB )
1373Post New Ansaldo Interview Questions
What is application xml?
What is the use of Tabledef?
What is Tcp/ip Model?
Short Answer on ______________House Rent allowance
Who invented semaphore?
Why do we use polymorphism in php?
What is __init__.py used for?
What is photoelectric colorimeter?
How many sap sessions can you work on at a given time?
What is ODATA ?
What is cookie less session?
what is RFCT and Insulgard Relay & It's function?
What are the elements of SOAP message structure?
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
How to add default rules in the transformer?