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Flow Measurement Valves

Series CSM-61 Flow Measurement Valves monitor system flow in low to medium flow rate HVAC units providing a highly accurate flow measurement. It consists of bronze body construction with bi-directional, positive shutoff ball valve design, blow-out proof stem, a position indicator, memory device, checked metering ports with drip caps, two brass pressure taps, integral drain ports, and a brass drain plug. Series CSM-61 has a compact size and is ideal in hot/chilled water units such as, fan coil units, water source heat pumps, reheat coils, panel coils, small branch lines, unit heaters, unit ventilators, finned radiation, small domestic hot water lines, convectors, and small pumps.


  • Highly accurate flow measurement, even in very low flow ranges
  • Available with threaded and solder end connections
  • Bi-directional valve and positive shutoff
  • Easy to use positive memory feature facilitates balancing and flow measurement

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific CSM-61

Approval Information

For approval information, please refer to the products specification sheet. For any other information on product certification and documentation information, please visit our certification partner websites: