106 / 206-A-Type 4 One-Way Flow Altitude Control Valve with Differential Control
The valve functions as a two position control valve, either fully open or fully closed. The Type 4 allows normal forward flow to fill the reservoir to the maximum level, then closes drip-tight at the set-point. It opens to refill the tank once the level drops an adjustable amount below the high water level.
Distribution from the reservoir is through a separate pipeline.
Note: This valve does not operate as a check valve to prevent reverse flow.
- No overflows
- Adjustable draw-down level (differential) set-point
- Superior repeatability
- Positive shut-off
- Adjustable draw-down for improved water cycling