ARI Eliptix R-20-SM 3W, Установка, Эксплуатация, Обслуживание

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R-20 SM
2.4. Initial Set-up - The Pressure Sustaining Application
1. The following is a general description of the Pressure Sustaining Application:
This pressure-sustaining automatic control valve is designed to maintain a minimal preset upstream pressure by
releasing excessive pressure to the downstream system.
The Eliptix R- 20 SM valve is a Normally Close Valve (N.C.) that is activated by the line pressure.
When the upstream pressure is higher than the pilot's pressure settings, the pilot decreases the internal pressure
of the control chamber by releasing water out to the atmosphere through port #
4 , causing the valve's diaphragm
to slightly open and decrease the upstream pressure back to the required settings level.
When the upstream pressure is lower than the pilot's pressure settings, the pilot increases the internal pressure of
the control chamber by letting water enter the control chamber through port #
2 , causing the valve's diaphragm to
slightly close and increase the upstream pressure back to the required settings level.
No. Description QTY.
1 Main Valve 1
2 Finger Filter 1
3 Manual Selector, ball Valve 3 -way 1
4
Multipurpose pilot valve
3
-Way
1