King Instrument Company

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King Instrument Company designs and manufactures a comprehensive line of flowmeters, rotameters, and custom‑engineered instruments. The product portfolio includes models constructed from glass, plastic, and metal tubing, covering flow capacities from 0.37 cc/min up to 200 GPM for water and from 0.37 cc/min to 350 SCFM for air in standard configurations. Bypass meters are available for pipe sizes as large as 20 in., and scale lengths range from 2 in. to 10 in. Certain models are offered with all‑plastic construction as a standard feature. Both in‑line and panel‑mount mounting options are provided, and many units can be equipped with optional valves. For selected models, customers may specify alarm functions or a 4‑20 mA output. All instruments are calibrated in‑house under certified procedures.

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