IOM
R-20 RM
8
2.2. Installation procedure
1.
Install the valve as indicated by the arrow on the valve bonnet, indicating flow direction [
1
].
2.
In addition of the control valve it is recommended to install the following valves:
Isolation valves upstream and downstream of the control valve [
2
] & [
2
A].
Air valves upstream and downstream of the control valve [5].
Quick pressure relive valve downstream of the control valve [6].
3.
Turn the
3
-way selector [
3
] to its “CLOSE” position and turn on the water supply to the valve.
4.
Check for leaks; tighten bolts & fittings, if necessary.
5.
Turn the adjusting screw [
4
A] counter-clockwise until there is no pressure on the spring.
6.
Close the
2
isolation valves [
2
].