Watts 0036641|WW0036641 - 3-4 HK CSM-91

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 hand wheel, tamper-proof brass memory stop, positive shutoff and grooved end connections with optional flange adapter