Layout And Operation - Honeywell HON 5020 Assembly

2.4

Layout and operation

How it works
Actuator assembly con-
figuration
HON 5020 gas pressure regulator
For actuator assembly models that use the imperial system, the information on the name-
plate will be as follows:
Figure
In combination with an appropriate Honeywell pilot, the HON 5020 actuator assembly can be
used as a gas pressure regulator in order to maintain the outlet or inlet pressure of a gas
constant within the regulating line, regardless of the influence of disturbance variables such
as pressure changes and/or discharge changes.
The pressure that needs to be regulated is fed to the pilot via the sensing line. The diaphragm
system in the pilot determines the pressure actual value as a force on the measuring dia-
phragm and compares it with the force of the pilot spring, which is used as reference variable.
If control deviations are detected based on the results from this comparison, the opening
position of the actuator assembly's regulating diaphragm will be changed by adjusting the
motorization pressure so that the pressure being regulated (actual value) will change to
match the setpoint. When there is zero pressure flow, the device seals tightly.
Actuator assembly configuration:
Figure
No. Meaning
1 Model name
2 Manufacturer
3 Nominal size
4 Nominal pressure / Flange standard
5 Tightening torque
6 Manufacturing date (month/year)
7 Customer reference number
8 Serial number
9 Differential pressure
10 Temperature range (-40° to 175° F)
11 Maximum allowable inlet pressure
No. Meaning
1 Actuator body
2 Diaphragm assembly
3 Flow restrictor
4 Noise reduction element
5 Support disc
6 Inlet pressure
7 Outlet pressure
8 Motorization pressure
Description
9