R-30 Y
2.4. Initial Set-up - The
Vertical Float Level Control Valve
Application
1.
The following is a general description of the R-
30
-Y
2
W Level Control Application:
This ON/OFF Level Control Valve is an automatic control valve, designed to be opened and closed according to the
position of a float valve which is equipped with a buoy that floats on the reservoir water.
When the reservoir water level drops below the pre-set level the vertical float [
5B
] drops with it. As the float reach
the lower stopper (
5
E) the float valve [
5
C] opens, water from the control chamber flows out through the control
tube [
7
] and the vent port of the float valve [
6
] causing the main valve to open.
When the reservoir water level rises back to the pre-set level the vertical float [
5B
] floats with it. As the float reach
the upper stopper (
5
D) the float valve [
5
C] closes, water from the upstream
2
-way ball valve [
2
] flows into the
control chamber causing the main valve to close.
2.
Mount the float valve [
5
] on the reservoir/tank at the desired level.
3.
Adjust the upper stopper (
5
D) to the required reservoir/ tank upper water level.
4.
Adjust the lower stopper (
5
E) to the required reservoir/ tank lower water level.
Very Important - when in manual Open or Close Modes, the Control
Valve cannot respond to changes in the reservoir water level!
No.
Description
QTY
.
1
Main Valve
1
2
Inlet Ball Valve,
2
-Way, N.O
1
2A
Outlet Ball Valve,
2
-Way, N.O
1
3
Finger filter
1
4
Restriction Orifice
1
5
Vertical, differential float, BI level
1
5A
Float valve Arm
1
5B
Buoy
1
5C
Float Valve
1
6
Vent Port
1
7
Control Tube
1
