Cla-Val Water Saving Valves use two downstream set points to achieve optimum system pressure; i.e. the capability delivering only the pressure that is needed to meet current demand.
A high-pressure set point is selected for high flow demand and a low-pressure set point is selected for low flow demand. This dual set point arrangement allows for a reduction in water consumption as well as unintentional water loss by keeping system piping from being over-pressurized during periods of low demand, such as at night. It does this without inhibiting adequate pressure during periods of normal (daytime), high or fire demand.
The 98-06 Water Savings Valve provides ” the best of both worlds” – adequate pressure to meet demand and maintain customer satisfaction, but not so much that pipelines become over-pressurized and subject to leakage and pipe breaks.
A dual system pressure with reduced system pressure during low demand periods is llustrated in the chart. At low flows, a minimum pressure is maintained and as flow increases to the switch point, delivery pressure increases to the maximum pressure set point for witch. The point between low pressure and high pressure setpoints is adjustable to fine-tune
the valve to system requirements. The “water saving zone” below maximum pressure line represents valve effectiveness in reducing water losses and frequency
of pipe breaks in a system.