King Instrument Flow Meters

King Instrument Flow Meters are precision devices used to measure and monitor the flow rates of liquids and gases in various industrial applications. Founded in 1993, King Instrument Company specializes in manufacturing variable area flow meters, also known as rotameters, which use a float inside a tapered tube to indicate flow rate visually. Their product line includes both glass tube and metal tube flow meters, offering solutions for applications ranging from water treatment and chemical processing to pharmaceutical manufacturing and HVAC systems. Known for their reliability and accuracy, King Instrument flow meters are valued for their simplicity, cost-effectiveness, and ability to operate without external power sources, making them popular choices for process control and monitoring in diverse industries.

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CATEGORY
Rotameters (19)
Variable Area Flow Meters (19)
APPLICATION
King Instrument 7520 / 7530 Series Rotameter
King Instrument 7520 / 7530 Series Rotameter
Machined cast acrylic block construction variable area flow meter for water or air, with a direct reading scale.
Starting at $75.00
King Instrument 7430 / 7440 Series Rotameter
King Instrument 7430 / 7440 Series Rotameter
Low-flow, borosilicate glass rotameters with optional alarm.
Starting at $227.00
King Instrument 7200 Series Rotameter
King Instrument 7200 Series Rotameter
General purpose rotameter with machined cast acrylic metering tube, replaces the IK55-A.
Starting at $120.00
King Instrument 7510 and 7511 Series Rotameter
King Instrument 7510 and 7511 Series Rotameter
Acrylic tube rotameters with in-line connections, replaces the IK55-D.
Some Models in Stock
Starting at $70.00
King Instrument 7100 Series Rotameter
King Instrument 7100 Series Rotameter
Stainless steel rotameter great for low flow, high pressure water or air applications.
Starting at $1,010.00
King Instrument 7330 Series Rotameter
King Instrument 7330 Series Rotameter
Polysulfone rotameters with PVC/PVDF union ends, replaces IK55-B.
Starting at $315.00
King Instrument 7460 Series Rotameter
King Instrument 7460 Series Rotameter
Rotameter for gases or liquids with 75mm scale Borosilicate Kinglass metering tube .
Starting at $458.00
King Instrument 7710 Series Rotameter
King Instrument 7710 Series Rotameter
Stainless steel rotameters with magnetically-coupled dial-type indicators, replaces the IK55-F.
Starting at $995.00
King Instrument 7650 Series Rotameter
King Instrument 7650 Series Rotameter
Chemically resistant, borosilicate glass tube meter series for liquid service.
Starting at $440.00
King Instrument 7450 Series Rotameter
King Instrument 7450 Series Rotameter
Rotameter with 75 or 150mm borosilicate glass metering tube.
Starting at $512.00
King Instrument 7310 Series Rotameter
King Instrument 7310 Series Rotameter
Molded Polysulfone rotameter with 304 stainless steel case for lighter duty applications where a case enclosed meter is preferred.
Starting at $602.00
King Instrument 7750 Series Rotameter
King Instrument 7750 Series Rotameter
Stainless steel rotameter with flange connections and optional 4-20mA transmitter.
Starting at $1,381.00
King Instrument 7480 Series Rotameter
King Instrument 7480 Series Rotameter
Borosilicate glass metering tube with 250mm scale, NPT or flange & vertical or horizontal connections.
Starting at $802.00
King Instrument 7910 Series Rotameter
King Instrument 7910 Series Rotameter
Borosilicate glass rotatmeters with optional alarm, 250mm scale glass tube & 304 stainless steel case.
Starting at $1,276.00
King Instrument 7610 Series Rotameter
King Instrument 7610 Series Rotameter
Borosilicate glass rotameters with optional alarm, replaces the IK55-E.
Starting at $851.00
King Instrument 7459 Series Rotameter
King Instrument 7459 Series Rotameter
Aluminum side plate rotameter with a 250mm scale borosilicate glass metering tube.
Starting at $968.00
King Instrument 7720 Series Rotameter
King Instrument 7720 Series Rotameter
Rugged PVC rotameters with magnetically-coupled dial-type indicator, replaces the IK55-G.
Starting at $1,138.00
King Instrument 7470 Series Rotameter
King Instrument 7470 Series Rotameter
127mm scale glass tube rotameter available with NPT or flange connections.
Starting at $712.00
King Instrument Silver Series Flow Meter
King Instrument Silver Series Flow Meter
Removable glass tube flow meters with powder-coated 304SS case & molded polycarbonate shield cover.
Starting at $1,126.00