Answer / aftab ahmed mazari

Pressure will be added up a bit more, see its detail:
1. Suppose,you want to install a pressure transmitter 10
meter below of pipe line.
2. Density of methane (Examlpe) 0.656 kg/m3 at 25C.
3. your pressure transmitter will show (10 x 1000 x0.656 =
6560mm) 6569 mm of water pressure more.
4. Suppose gas pressure is 20Kg/cm2, then due to this
elevation, transmitter will show 20.66Kg/cm2
aftabmazari@yahoo.com

Answer / narayan

it will not give correct pressure, since natural gas condense in the lower side, actual pressure will be added with this head pressure of liquid, hence it will not give the actual pressure of gas
so transmitter should be installed above the pipe line, to measure exact pressure of NG

Answer / karthick

views the pressure of natural gas

What is mean by trim?

5 Answers  

---

where Pirani gauges are uesd in case of pressure measurement?

3 Answers  

---

What is the working principle of the magnetic meter?

1 Answers  

---

hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....

0 Answers  

---

What is the difference between intrinsic instruments and ATEX instruments?

1 Answers  

---

how many type of plug are used in pneumatic control valve,name them.

3 Answers   Godrej,

---

How to Calibrate Ultrasonic flow Transmitter in Field

1 Answers  

---

How it the difference between force balance system and dispalacement balance system?

1 Answers  

---

what is the significance of hook up

3 Answers  

---

what is modbus & what signals are taken through it

2 Answers  

---

Can anyone explain about ELectropneumatics principle?

1 Answers   Forbes Marshall, Step,

---

What is NODE in DCS?

2 Answers  

---