Starting Up The Gas Pressure Regulator - Honeywell HON 512 User And Maintenance Manual

5.5

Starting up the gas pressure regulator

Pressurized parts
Requirements
Gas regulating line sche-
matic diagram
HON 512 with HON 650 pilot user manual
Risk of injury posed by bursting parts in the event that they are subjected to pressure in
the wrong direction
The device has been designed for a specific direction of flow, which is labeled on the device.
Subjecting the device to pressure in the wrong direction may result in serious injury caused
by bursting parts.
 Pressurize the system only on the inlet side.
Make sure that the following requirements are met:
▪ The system has been checked, is fully functional, and has no leaks.
▪ The inlet and outlet shut-off devices for the gas regulating line section are closed.
▪ The shut-off devices for the blowdown lines are closed.
▪ The inlet pressure is present upstream of the inlet shut-off device. Details about the
operating pressure can be found in the technical specifications (see page 22).
▪ The system is depressurized between the inlet shut-off device and the outlet shut-off
device.
The numbers have the following meaning:
No. Meaning
1 Inlet stop valve armature
2 Gas pressure regulator
3 Outlet stop valve armature
Transport, installation and start-up
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