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CLA-VAL Control Valves – Flow and Control Valves



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CLA-VAL FLOW & CONTROL PRODUCTS

Cla-Val Waterworks: Flow & Control Valves

Cla-Val Flow Control/Rate of Flow Control Valves prevent excessive flow by limiting flow to a pre-selected minimum 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. Please see Certifications & Approvals for more information.
 
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.

        


 

40-01ControlValve

40-01 Cla-Val Control Valve

Cla-Val: 40-01/640-01 Rate of Flow Control Valve

Benefits & Features

Cla-Val 40-01 and 640-01 Rate of Flow Control Valves prevent excessive flow by limiting flow to a preselected maximum rate, regardless of changing line pressure. They are hydraulically operated, pilot controlled, diaphragm valves. The pilot control responds to the differential pressure produced across an orifice plate installed downstream of the valve. Accurate control is assured as very small changes in the controlling differential pressure produce immediate corrective action of the main valve. Flow rate adjustments are made by turning an adjusting screw on the pilot control.

 

 

43-01ControlValve

43-01 Cla-Val Control Valve

Cla-Val: 43-01/640-01 Rate of Flow Control Valve

Benefits & Features

Cla-Val 43-01 and 643-01 Combination Rate of Flow Controller and Solenoid Shut-Off Valves limit the maximum flow rate, regardless of changing line pressure. It is a hydraulically operated, pilot controlled, diaphragm valve. On either model, the pilot control is actuated by the differential pressure produced across an orifice plate installed downstream of the valve. Accurate control is assured as very small changes in the controlling differential pressure produce immediate corrective action of the main valve. A solenoid control is provided to intercept the operation of the differential control and close the main valve.

Models 43-01 and 643-01 includes a orifice plate with a holder that should be installed one to five pipe diameters downstream of the main valve. If the check feature option is added and a pressure reversal occurs, the downstream pressure is admitted into the main valve cover chamber and the valve closes to prevent return flow.

 

 

49-01 Control Valve

40-25 Cla-Val Control Valve

Cla-Val: 40-25/640-25 Combination Rate of Flow & Pressure Sustaining Valve 

Benefits & Features

Cla-Val 40-25 and 640-25 Rate of Flow and Pressure Sustaining Valves automatically limit the maximum flow rate, regardless of changing line pressure or demand. It also sustains the upstream pressure to a pre-determined minimum.

Install the 40-25 or 640-25 Rate of Flow and Pressure Sustaining Valveswhere the water supply to a system must be limited to a preset flow to prevent lowering the supply pressure. 
 
Product Advantages
  • Multi-Functional Capability                                                              
  • Accurately Limits Flow Rate   
  • Completely Automatic Operation
  • Includes Orifice Plate with Holder
  • Optional Check Feature
  • Easily Adjusted
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    Downloadable Files


    To find out more, contact a Harper representative.
    Harper Haines Fluid Control, Inc.
    125 Old Gate Lane, Milford, CT 06460
    Telephone: 203.693.3740 * Fax: 203.547.6092
    YOU CALL, WE ROLL.