Honeywell HON 5020 User And Maintenance Manual page 13

Actuator assembly con-
nection lines
HON 640a configuration
HON 5020 gas pressure regulator with HON 640a / HON 642a pilot
Actuator assembly connection lines:
Figure
Front:
Back:
The actuator assembly's connections have the following dimensions:
 M 14 x 1.5 if the pilot being connected uses the metric system
 3/8 NPT if the pilot being connected uses the imperial system
The pilots in the HON 640a series are made up of the following individual components and
feature the ports indicated below:
Figure
No. Connection
1 Inlet pressure
2 Motorization pressure
3 Outlet pressure / feedback
4 Outlet pressure
5 Inlet pressure
No. Description
1 Inlet pressure gauge (only on metric
HON 640a)
2 Port for outlet pressure sensing line
3 Port for outlet pressure process line
4 Breather line fitting (ambient pressure
compensation)
5 Spring adjuster
6 Integrated filter
7 Port for inlet pressure line
8 Amplifying valve
9 Port for motorization line
Description
13