Cla-Val - Electronic Flow Control Valves - 133-AW Multi-Function Electronic Interface Valve ***
Cla-Val Flow Control/Rate of Flow Control Valves prevent excessive flow by limiting flow to a preselected maximum rate, regardless of changing line pressure. The pilot control responds to the differential pressure produced across an orifice plate installed downstream of the valve. Accurate control is achieved as very small changes in the controlling differential pressure produce immediate corrective action of the main valve.
Cla-Val Flow Control Valves are available in various configurations including the ubiquitous Model 40-01 Rate of Flow Control Valve, Model 43-01 Combination Rate of Flow Controller and Shut-Off Valve, and Model 49-01 Combination Rate of Flow and Pressure Reducing Valve.
A typical application for this type of automatic control valve is as a pressure type filter effluent control valve where a constant flow rate is maintained despite variation in head loss through the filter, or anywhere a constant rate of flow is desired.
The Cla-Val Model 133-AW Multi-Function Electronic Interface Valve is a control system that accurately calculates and/or controls flow rate, position or pressure. The valve is designed to close in the event of a power failure. Using the VC-22D Electronic Controller, data from valve mounted pressure transmitter (X141-PT) and position transmitter (X117D) are assimilated into a proprietary algorithm program that is based on valve size and configuration to arrive at a flow measurement.
