Hi!!
Can anyone help me on this question. I am looking at a vortex flowmeter and the transmitter load line resistance is given as max 550 ohm at 24V? Does this mean the signal output from the transmitter can drive a max load of 550 ohm at 24V or 43.6mA? How is this important when I source...
Hi!
Simple question for you guys but one which I am not too sure of and need you help....
For example a control valve with 4-20mA input, and a load resistance of 300ohm, how do we use the 300 ohm load resistance information...
It must be for selection of controllers but I am not too sure...
Hi,
Need advice. Assuming I have a double acting diaphragm pump operating at say 3 bar (directly at pump outlet) with 1 inch main line and there is a 2 bar pressure drop to my user (based on pipe rise and losses through piping). Assume based on pump curve at 3 bar pressure i can hv flowrate...
Hi!
Need some help. I've got a heat exchanger using superheated steam (10 barG at 210 deg C) to transfer heat (I know its supposed to use saturated steam but thats the way it is sadly and not able to desuperheat for the moment!!).
My problem is the system isn't functioning. I have confirmed...
Hi All,
Any help is welcome.
Talking to ppl, I understand that for steam systems, there is a difference when a person says they want pressure control or when they want temperature control. But then, for sat steam, isn't pressure and temp fixed?
Also, in this context, certain valves are...
Would appreciate anyone's help. Thanks in advance.
If a valve is supposed to be say Class 800, what does it mean? I am sure it is related to pressure and temperature but do not know the exact meaning.
Also if I have a valve with known capability to handle a known pressure and temperature...
Hi All,
Want to know if for example we have X kg/hr condensate at Y barG pressure to be discharged to a return of Z barG pressure, how do you calculate the the size of pipe required at the outlet?
There is going to be 2 phase at the outlet with these conditions. I am not looking for any...
Anybody knows the typical droop for both? Want to know this as would like to know if I am presented with both options, whne should I pick either or?
Been readind thru books and they only give qualitative criterias and not quantitative.
Thanks.
Hi!
Would like to get a definition for hysterisis. Looking it up gives 2 definition.
1. lagging behind of flow upon movement of valve
2. difference in measurement for the same amount of flow measured when flow is increasing against when flow is decreasing.
Does the context in which it is...
