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5.2
Installing the gas pressure regulator
Insert the adapter up-
stream of the gas pres-
sure regulator
Preparing the
materials
Assessing the
situation
Installing the gas pressure
regulator
HON 512 with HON 650 pilot user manual
For actuator assemblies with nominal inlet sizes of DN 25 to DN 100 and an expander at the
gas outlet, the manufacturer recommends adding an adapter, immediately upstream of the
gas pressure regulator, to the gas regulating line. If there is a device fault, or in order to check
the device's state, the body segment with the expander and integrated noise reduction can
remain in the regulating line in this case while the adapter and the remaining gas pressure
regulator sub-assemblies are removed from the regulating line one after the other.
Prepare the following materials:
▪ Flange gaskets
Number, design, and size as per flange connections
▪ Fasteners (screws, bolts, studs, washers, nuts)
The number, size, and thread type are based on the flange design and size
▪ Adapter (optional)
Length as per Technical specifications (see page 22), version as per gas regulating line
Assess the installation situation.
The numbers have the following meaning:
Figure
Proceed as follows:
Figure
Transport, installation and start-up
No.
Meaning
1
Gas inlet side gas regulating line
2
Gas regulating line flange gasket / adapter
3
Adapter (optional)
4
Adapter flange gasket / gas regulating line
5
Gas pressure regulator
6
Gas pressure regulator flange gasket / gas
regulating line
7
Gas outlet side gas regulating line
8
Gas outlet side fasteners
9
Gas inlet side fasteners
10
Adapter fasteners
Step
Description
1
Secure the gas pressure regulator's posi-
tion and support the position inde-
pendently of the transport panels (1, 4)
and U-sections (2, 5).
2
Remove the fittings (3, 6) and the transport
panels (1, 4), including the U-sections (2,
5).
46
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