2 1/2 to 12 in. (65 to 300mm)
Series CSM-91 Flow Measurement Valves monitor system flow in medium to high flow rate HVAC units providing a highly accurate flow measurement. It consists of a ductile iron body construction, pressure differential readout ports on both sides of the valve, two interchangeable brass metering ports and drain ports on both sides of the valve, two check valves with gasketed caps, bronze valve stem and plug disc, multi-turn adjustment handwheel, tamper-proof brass memory stop, positive shutoff, and grooved end connections with optional flange adapter. Series CSM-91 is ideal in water units such as pump packages and cooling towers.