how to calculate RAW FLOW through control valve

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ajay
Posts: 4
Joined: Tue Sep 07, 2010 12:04 pm

how to calculate RAW FLOW through control valve

Post by ajay » Tue Sep 07, 2010 12:43 pm

dear all,

I have pressure control valve of make fisure

how can i calcualate RAW flow through control valve, if we have only,valve size=6 inches;flow pressure =5 kg/cm2 service =oxygen flow

with best regards,

Ajay Bhalerao

admin
Site Admin
Posts: 365
Joined: Mon Feb 08, 2010 7:47 pm

Re: how to calculate RAW FLOW through control valve

Post by admin » Tue Sep 07, 2010 2:07 pm

Flow will change with the different position of closing element. You should have the diagram of flow rate to pressure drop change from manufacturer.
Or, if you have flow coefficient Cv, Kv, than you can calculate full capacity. Flow will change from 0 to that maximum in some way - linear, logarithm or other which is also subject to get from manufacturer.
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ajay
Posts: 4
Joined: Tue Sep 07, 2010 12:04 pm

Re: how to calculate RAW FLOW through control valve

Post by ajay » Wed Sep 08, 2010 11:29 am

Administrator wrote:Flow will change with the different position of closing element. You should have the diagram of flow rate to pressure drop change from manufacturer.
Or, if you have flow coefficient Cv, Kv, than you can calculate full capacity. Flow will change from 0 to that maximum in some way - linear, logarithm or other which is also subject to get from manufacturer.
Dear sir,

Thank you for your reply

with best regards

Ajay

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