Recent content by minty

thanks Gerhardl.

When considering flow through a control valve, how does the continuity equation apply? A control valve is used to regulate or restrict a flowrate. However, according to Q=AV or m=rho AV, a change in area (closing the valve) will produce a change (increase) in velocity to maintain the...

Hi Guys, Thanks for all your help. That's been really useful. Best Regards, Michelle

Hi Jim, I did try using a Cv equation but was getting daft results. However, as I said in my original post, I sent the data to the valve manufacturer and they have now responded with a result from their software. Thanks for your response anyway. Regards, Michelle

Hi there Onrush, With regards to single block and bleed valves, you can either install as two separate valves (i.e. a block valve with a bleed drain downstream in the pipework) or you could install an integral single block and bleed unit. I am not hugely familiar with these but a quick search...

I am trying to determine the inlet pressure to a throttle valve. The information I have is: *valve CV *fluid *flowrate I want through the valve *an approximate downstream pressure. Is there any way I can calculate the upstream pressure or the pressure drop across the valve from this...

Thanks for those tips. I haven't considered the use of a "fast loop" or parallel sample line as the area is quite congested already with pipework. The use of a restriction orifice has also been suggested to me but I am dealing with very low operating pressures and so have limited liquid head...

I am designing a sample point for an offshore platform and need to ensure a homogenous mixture (of produced water and condensate) is obtained prior to sampling. Assuming a liquid full section of pipework can be obtained, which would provide better mixing: an electric mixer or a static mixer...

Thanks guys. I'll check both those out. Chris Conley: the flowrates are ridiculously low - in the region of say 100 ml/hr!

I am trying to find metering valves for the injection of liquids at very low flowrates. I have found SkoFlo valves so far but was wondering if anyone had any other information on where I could find similar type valves.

Dear Everyone, Thanks very much for your help and advice. It was very greatly appreciated. However ...!!! The problem has been solved on-site. As I said, thanks a lot for your help. Yours, Minty

Hi. I am looking for a suitable dessicant/drying method to reduce the amount of water in air to as little as possible. Can anyone please suggest cost effective methods to achieve this? With regards to the final water content of the air, I'm basically looking to reduce it to as low as...