Honeywell HON 512 User And Maintenance Manual page 38

Gas pressure regulating
line - example 3
Gas pressure regulating
line - example 4
Legend
HON 512 with HON 650 pilot user manual
Configuration:
▪ Indirect acting gas pressure regulator (pilot-operated)
▪ With expander and integrated noise reduction element
▪ Outlet pressure gauge with protection against overpressure
Configuration:
▪ Indirect acting gas pressure regulator (pilot-operated)
▪ Indirect acting slam-shut device (pilot-operated) (two)
▪ With expander without noise reduction element downstream of the gas pressure regu-
lator
The numbers have the following meaning:
No. Meaning
1 Safety Shut-Off Valve
2 Gas pressure regulator
3 Pilot
4 Safety relief valve
5 Outlet stop valve armature
6 Sensing point for connection lines (gray area)
7 Return line
8 Bleed line
9 Gas pressure regulator measuring impulse line
10 Slam-shut device measuring impulse line
Basics for installing the device in a pipe
38