Key Instruments
Key Instruments
500 Coventry Lane Croydon,
PA 19021, USA
Phone: 215-788-5523
E-Mail: sales@keyinstruments.com
Website: www.keyinstruments.com
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Series 2500 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales and is available in either English or metric scales.
2500 Series Variable Area Flowmeters
2510 Series 0.0 to 1 Standard Cubic Feet per Hour (scfh) Flow Rate Buna Seal Inlet Valve Variable Area Flow Meter - 2
Unit of Measure
1 2 3 4 

Item #

Item Name

Flow Rate

Seal Material

Valve

Fittings

2520A4L53SVVT N/A 2520 Series 100 to 1500 Cubic Centimeters Per Minute (cm³/min) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 100 to 1500 cm³/min N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2520A4L54SVVT N/A 2520 Series 200 to 3000 Cubic Centimeters Per Minute (cm³/min) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 200 to 3000 cm³/min N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2520A4L56SVVT N/A 2520 Series 10 to 120 Cubic Centimeters Per Minute (cm³/min) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 10 to 120 cm³/min N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2530A4A65BVBN N/A 2530 Series 1 to 10 Standard Cubic Feet Per Minute (scfm) Flow Rate Buna Seal Inlet Valve Variable Area Flow Meter N/A 1 to 10 scfm N/A Buna N/A Inlet Valve N/A Brass Fittings
2530A4A65SVVT N/A 2530 Series 1 to 10 Standard Cubic Feet Per Minute (scfm) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 1 to 10 scfm N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2530A4A67BVBN N/A 2530 Series 0.5 to 5 Standard Cubic Feet Per Minute (scfm) Flow Rate Buna Seal Inlet Valve Variable Area Flow Meter N/A 0.5 to 5 scfm N/A Buna N/A Inlet Valve N/A Brass Fittings
2530A4A67SVVT N/A 2530 Series 0.5 to 5 Standard Cubic Feet Per Minute (scfm) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 0.5 to 5 scfm N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2530A4A70BVBN N/A 2530 Series 30 to 300 Liters Per Minute (L/min) Flow Rate Buna Seal Inlet Valve Variable Area Flow Meter N/A 30 to 300 L/min N/A Buna N/A Inlet Valve N/A Brass Fittings
2530A4A70SVVT N/A 2530 Series 30 to 300 Liters Per Minute (L/min) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 30 to 300 L/min N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2530A4A72BVBN N/A 2530 Series 14 to 140 Liters Per Minute (L/min) Flow Rate Buna Seal Inlet Valve Variable Area Flow Meter N/A 14 to 140 L/min N/A Buna N/A Inlet Valve N/A Brass Fittings
2530A4A72SVVT N/A 2530 Series 14 to 140 Liters Per Minute (L/min) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 14 to 140 L/min N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2530A4A73BVBN N/A 2530 Series 100 to 560 Liters Per Minute (L/min) Flow Rate Buna Seal Inlet Valve Variable Area Flow Meter N/A 100 to 560 L/min N/A Buna N/A Inlet Valve N/A Brass Fittings
2530A4A73SVVT N/A 2530 Series 100 to 560 Liters Per Minute (L/min) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 100 to 560 L/min N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2530A4L64BVBN N/A 2530 Series 0.25 to 2.5 Gallons Per Minute (gpm) Flow Rate Buna Seal Inlet Valve Variable Area Flow Meter N/A 0.25 to 2.5 gpm N/A Buna N/A Inlet Valve N/A Brass Fittings
2530A4L64SVVT N/A 2530 Series 0.25 to 2.5 Gallons Per Minute (gpm) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 0.25 to 2.5 gpm N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2530A4L69SVVT N/A 2530 Series 1 to 10 Liters Per Minute (L/min) Flow Rate Viton® Seal Inlet Valve Variable Area Flow Meter N/A 1 to 10 L/min N/A Viton® N/A Inlet Valve N/A 303 Stainless Fittings
2540A5A50PS N/A 2540 Series 3 to 25 Gallons Per Minute (scfm) Flow Rate Buna Seal Variable Area Flow Meter with Valve N/A 3 to 25 scfm N/A Buna N/A No Valve N/A Polyvinyl Chloride (PVC) Fittings
2540A5A50PV N/A 2540 Series 3 to 25 Standard Cubic Feet Per Minute (scfm) Flow Rate Buna Seal Variable Area Flow Meter N/A 3 to 25 scfm N/A Buna N/A Yes N/A Polyvinyl Chloride (PVC) Fittings
2540A5A50SI N/A 2540 Series 3 to 25 Standard Cubic Feet Per Minute (scfm) Flow Rate Seal Viton® Variable Area Flow Meter N/A 3 to 25 scfm N/A Viton® N/A No Valve N/A 303 Stainless Fittings
2540A5A50SV N/A 2540 Series 3 to 25 Standard Cubic Feet Per Minute (scfm) Flow Rate Viton® Seal Variable Area Flow Meter N/A 3 to 25 scfm N/A Viton® N/A Yes N/A 303 Stainless Fittings
2540A5A51PS N/A 2540 Series 4 to 50 Standard Cubic Feet Per Minute (scfm) Flow Rate Buna Seal Variable Area Flow Meter with Valve N/A 4 to 50 scfm N/A Buna N/A No Valve N/A Polyvinyl Chloride (PVC) Fittings
2540A5A51PV N/A 2540 Series 4 to 50 Standard Cubic Feet Per Minute (scfm) Flow Rate Buna Seal Variable Area Flow Meter N/A 4 to 50 scfm N/A Buna N/A Yes N/A Polyvinyl Chloride (PVC) Fittings
2540A5A51SI N/A 2540 Series 4 to 50 Standard Cubic Feet Per Minute (scfm) Flow Rate Viton® Seal Variable Area Flow Meter with Valve N/A 4 to 50 scfm N/A Viton® N/A No Valve N/A 303 Stainless Fittings
2540A5A51SV N/A 2540 Series 4 to 50 Standard Cubic Feet Per Minute (scfm) Flow Rate Viton® Seal Variable Area Flow Meter N/A 4 to 50 scfm N/A Viton® N/A Yes N/A 303 Stainless Fittings
2540A5A52PS N/A 2540 Series 10 to 1200 Standard Cubic Feet Per Minute (scfm) Flow Rate Buna Seal Variable Area Flow Meter with Valve N/A 10 to 1200 scfm N/A Buna N/A No Valve N/A Polyvinyl Chloride (PVC) Fittings
Unit of Measure
1 2 3 4