Interested to Buy Any Domain ? << Click Here >> for more details...
I have a close vessel tank which is under vaccum when in running condition so pl. Provide it's range for dp type tx whose flange to flange distance is 440 mm and density is 1
- 1 Answers
- 3752 Views
- I also Faced
- E-Mail Answers
Answer Posted / carl_ellis
A closed pressure vessel requires a differential pressure
measurement in order to compensate for the pressure or
vacuum in the vapor space above the liquid.
The density is said to be 1, so we'll assume that what was
really meant is that the specific gravity is 1.00, the same
as the specific gravity of water. The measurement can be
made in engineering units of mm of water column (wc) with no
compensation for a specific gravity other than water.
A DP transmitter measurement:
(high side pressure) minus (low side pressure)
The low side pressure reading is (vacuum pressure).
The high side pressure reading is (column of water pressure
+ vacuum pressure)
(water column pressure + vacuum pressure) minus vacuum
pressure = water column pressure.
With a vertical elevation difference between the flanges of
440mm, the water column pressure will be
0 - 440mm wc.
LRV = 0.0 mm wc
URV = 440 mm wc
Carl Ellis
Measure First
| Is This Answer Correct ? | 5 Yes | 0 No |
Post New Answer View All Answers
key exchanges in wpa,wpa2,tls
What is critcal speed. what is resonant frequency. why we want to cross crtcal speed on higher RPM (early).
Explain plc level and its type?
Positioner usage.
What happen if we install my pressure transmitter below the elevation of pipe in natural gas service?
when a magnet is heated?
how do u calibrate the vacuum transmitter if it shows more reading
In bently nevada vibration monitoring system,what is the reason to maintain the Resistance of the probe + extension cable equal to 95 ohm? If possible explain the basic principle of measurement with detail electronic circuits.
I need to know steps to Calibration Valve Guard......
What is zero elevation and zero suppression?
I have a Control VAlve having size of 2 ".Only the known parameter is Pressure drop . Its 2 Kg. Then How to calculate control valve sizing means Cv.
find the kp ki kd from the transper function G(S)=29.44s+04707/1.5349s2+s
Describe how to use megger to measure the earth resistance and insulation resistance
what is wave length were using ?
why we use cascade control and feed foreword control in 3 element control of boiler drum ?what is feed forward and cascade control system ?
