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Dear members As far as I know angle type globe valves are suitable for two phase flow. from what point of view this type can tolerate such flows?

As far as I know after maintenance or tube cleaning in shell and tube heat exchanger shell test is needed .how about tube test? If tube test also needed which one should be done first? Shell test or tube test?

I am going to size a control valve for following condition: flow condition:steam P1=41bara P2=33bara temperature=410c specific gravity=11.7 Z=0.98 what would be the amount of Cv?

What is the max Cv for 8" globe valve?

What is the specific gravity of steam at following condition? temperature=410c pressure=41bara

In some types of swing check valve,there is a hole on the disc. since it cause to leakage in close position so why is that?

How can we find Cv for a manual valve? For example,what is the Cv for 6" full port globe valve?

What is the main purpose of low pressure closure test in API598.according to mentioned standard there are also high pressure closure test which is done by higher pressure. so when we use it? and what is the advantage of that?

Can we use cathodic protection in order to eliminate corrosion in underground galvanized piping?

Can we use galvanized pipe with wrapping in underground piping?

Which material has more corrosion resistance,hastelloy B2 or C276?

Can we use SS410 instead of 17-4-PH in a control valve which is installed in steam service?

Can we use SS410 instead of 17-4-PH in a control valve which is installed in steam service?

What is the difference between constant and variable spring support?

What is the maximum difference between calculated cv and selected cv could be?

Dear experts Which material has better resistance to cavitation.A351 CF8 or A351CF8M?

Dear experts Which material has better resistance to cavitation.A351 CF8 or A351CF8M?

Dear experts As far as I know,the flow direction in globe valves is depends on valve application.in other word for shut off valves flow direction should be over the plug.and for throttling valves flow direction should be under the plug. So why manufacturers show direction on globe valve body?

Dear members What is the related standard for center to face dimension of angle globe valves? regards Arash

Dear members what are the differences between short pattern and venturi pattern plug valves? regards Arash