Honeywell HON 673 - Basics for installing the device in a pipe

Basics for installing the device in a pipe
HON 380 gas pressure regulator with HON 673/674 controller 23
4 Basics for installing the device in a pipe
Topic Page
Installation example 23
Meter run characteristics 24
Operating and measuring lines 26
4.1 Installation example
Configuration:
 Direct acting gas pressure regulator (non-piloted)
 With expander without noise reduction element downstream of the gas pres-
sure regulator
The numbers have the following meaning:
No. Meaning
1 Safety Shut-Off Valve
2 Gas pressure regulator
3 Safety relief valve
4 Outlet stop valve armature
5 Sensing point for connection lines (gray area)
6 Gas pressure regulator measuring line
7 Slam-shut device measuring line
8 Vent line
9 Relief line
10 Blowdown line
Following is the meaning of the acronyms:
Acr. Meaning
DN Nominal size of pipe
L
uR
Undisturbed length of pipe
* Shut-off device with undisturbed flow pattern (ball valve) can be incorporated
Contents
Gas pressure regula-
ting line – example
Legend