A.R.I. Eliptix R-30 R 2W, Installation, Operating, Maintenance, Page: 10 / 21

R-30 R
2.4. Initial Set-up - The Pressure Reducing Application
1. The following is a general description of the Pressure Reducing Application:
This pressure-reducing valve is an automatic control valve designed to reduce a higher upstream pressure to a
preset lower downstream pressure, and to maintain this constant pressure regardless of flow-rate or upstream
pressure fluctuations.
Pipeline water flows constantly through the control loop. The pilot senses the downstream pressure through its #1
port.
When the downstream pressure is higher than the pilot's pressure settings, the pilot increases the internal
pressure of the control chamber by increasing the water flow through port #
3 , causing the valve's diaphragm to
slightly close and decrease the downstream pressure back to the required settings level.
When the downstream pressure is lower than the pilot's pressure settings, the pilot decreases the internal
pressure of the control chamber by decreasing the water flow through port #
3
, causing the valve's diaphragm to
slightly open and increase the downstream pressure back to the required settings level.
No. Description QTY.
1
Main Valve
1
2
Finger Filter
2
3 Ball Valve, 2-Way, N.O. 2
4 Pressure Reducing Pilot Valve, 2-Way 1
5 Pressure Gauge 1