Storage
, removal, and disposal
HON 5020 gas pressure regulator with HON 630 pilot
90
Schematic diagram using the two-stage HON
630 pilot with a diaphragm assembly as a
reference
The numbers have the following meaning:
No.
Meaning
1
Inlet stop valve armature
2
Gas pressure regulator
3
Pressure gauge
4
Outlet stop valve armature
5
Valve for blowdown line
6
Blowdown line
Proceed as follows:
Step
Description
1
Close the outlet stop valve armature (4).
2
Close the inlet stop valve armature (1).
3
Depressurize the pilot:
Turn the set screw on the pilot’s control stage –
and the set screw on the pilot’s load
limiting stage as well if applicable
–
clockwise until the pressure in the pilot is equalized.
4
Open the valve (5) in the blowdown line (6) to discharge the pressure between the inlet
and the outlet valves.
When conducting work involving the pipework, please always observe the following:
Figure
Description
Do not twist the pipe connections in the assemblies.
Use a second spanner wrench for securing when
loosening and tightening pipe joints.
Overview
Establishing the depres-
surized status
Protecting the pipe con-
nections from being
twisted