Technical Explanations
The various hook ups are arranged as follows:
| Differential pressure measurement | |
| Differential pressure instruments mounted directly to the process line (DPD) |
Differential pressure instruments mounted to racks or in enclosures etc. (DPR) |
| Condition of fluid inside process line | |
| DP D S 01 | DP R G/L 01 | ||
| DP | = Differential Pressure | DP | = Differential Pressure |
| D | = Direct Mounting | R | = Remote Mounting |
| G L S |
= Gas = Liquid = Steam |
G L S |
= Gas = Liquid = Steam |
| 01 | = Consecutive Number | 01 | = Consecutive Number |
|
Condition of fluid inside process line |
liquid | gas | ||
|
Condition of fluid inside impulse line |
liquid |
completely vapourized |
gas, partly condensed |
completely liquefied |
| Hook up DP |  |
 |
 |
 |
| Example | water | liquefied gas | humid gas | vapour |
We treat the following methods of differential pressure measurement:
- Flow measurement
- Differential pressure measurement (e. g. determination of differential pressure between 2 pipe lines)
- Level measurement (F01...)
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