Featured Products
Key Instruments Flow Meter The Key Instruments GR series variable area flow meter measures the gas flow rate of 0.5L/min to 5L/min. It is made fr...
FR4500 Series Flow meters The FR4500 series is a standard precision-machined acrylic flow meter for liquids...
High Flow FR5000 Series Indicator Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading ai...
Low Cost Polycarbonate Flow Meters MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or CCM a...
High Flow FR5000 Series Indicator Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading ai...
FR4500 Series Flow metersPrecision machined from solid acrylic blocks with Buna-N sealsValve: Brass cartridge typeHigh accuracy performance for b...
High Flow FR5000 Series Indicator Series FR5000 is a standard precision-machined acrylic flow meter for liq...
Low Cost Polycarbonate Flow Meters MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or...
High Flow FR5000 Series Indicator Series FR5000 is a standard precision-machined acrylic flow meter for liq...
Key Instruments Flow Meter The Key Instruments FR2000 series variable area flow meter measures the liquid flow rate of 10 ccm to 100 cm³/min. Thi...
Low Cost Polycarbonate Flow Meters MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or CCM a...
Pipe diameter range is 1/4 inConnection type is 1/4 NPT femaleMaximum operating pressure is 6.89barMaximum operating temperature is 65CIt is use...
Popular Categories For Key Instruments
Popular Items
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1250AD6053ALAVB, Key Instruments
Key Instruments Flow Meter
The Key Instruments GR series variable area flow meter measures the gas flow rate of 0.5L/min to 5L/min. It is made from borosilicate glass, it is ideal for use with liquids or gases. The user can configure it with a standard or precision control valve on the inlet, the outlet, or no valve at all.
Features and Benefits
Pipe diameter range is 1/8in
Connection type 1/8 NPT female
Maximum operating pressure is 13.7bar
Maximum operating temperature is 93°C
Water ranges from 21CCM to 2080CCM
Air ranges from 50CCM to 66370CCM
Rotating lens allows 180° view with magnification
Popular items
FR4L72BVBN, Key Instruments
FR4500 Series Flow meters
The FR4500 series is a standard precision-machined acrylic flow meter for liquids or gases and has direct reading air and water scales. The FR4500 flow meters can be configured with a control valve on the inlet or no valve at all, O-Rings are provided as Buna-N.
Features and Benefits
Easy-to-read scales
Water ranges from 1 LPM to 20 LPM
Air ranges from 14 LPM to 560 LPM
Threaded brass inserts for quick installation
Easy disassembly and assembly for maintenance
Durable 1 piece clear acrylic construction
Stable, easy-to-read float
Superior quality
Product Application Information
Compatible with most gases and fluids.
Note
Mounting screws are required (available separately).
Popular items
2540A5L61PI, Key Instruments
High Flow FR5000 Series Indicator
Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales.
Model FR5000 flowmeters have standard 1"" FNPT PVC fittings.
Features and Benefits
Durable, 1 piece, clear acrylic construction
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-Ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Product Application Information
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
Popular items
MR3A17BVBN, Key Instruments
Low Cost Polycarbonate Flow Meters
MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or CCM and GPH for water.
Manufactured from high-impact polycarbonate, the MR3000 series can operate at pressures of 100 psig and temperatures of 150°F (65°C).
These economically designed units provide high quality and accuracy when properly installed. The durability of the polycarbonate allows the flow meter to provide years of trouble-free service.
Features and Benefits
High impact polycarbonate
High quality construction
Flow ranges: Air 50 CCM to 100 LPM, Water 4 CCM to 40 GPH
10:1 turn direct reading scales
Product Application Information
For use with air and water. Ideally suited for OEM applications.
Supplied with
mounting brackets & built-in bezel
Popular items
2540A5A55PI, Key Instruments
High Flow FR5000 Series Indicator
Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales.
Model FR5000 flowmeters have standard 1"" FNPT PVC fittings.
Features and Benefits
Durable, 1 piece, clear acrylic construction
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-Ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Product Application Information
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
Popular items
FR4L69BVBN, Key Instruments
FR4500 Series Flow metersPrecision machined from solid acrylic blocks with Buna-N sealsValve: Brass cartridge typeHigh accuracy performance for both air and water applicationsFitted with a high quality 12-14 turn precision brass valve for precise meteringDesigned for front panel mountingInlets/outlet ports and mounting studs extend through the panel for easy installationUnits may be disassembled for easy maintenanceStable and easy to read floatsAccuracy 3% Full scaleSuitable stainless steel push-in fittings, for example:536-2577NoteMounting screws are required (available separately).
Popular items
FR5L60PI, Key Instruments
High Flow FR5000 Series Indicator
Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales.
Model FR5000 flowmeters have standard 1"" FNPT PVC fittings.
Features and Benefits
Durable, 1 piece, clear acrylic construction
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-Ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Product Application Information
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
Note
Flow indicators and base valve sold seperately.
Popular items
MR3A13BVBN, Key Instruments
Low Cost Polycarbonate Flow Meters MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or CCM and GPH for water.Manufactured from high-impact polycarbonate, the MR3000 series can operate at pressures of 100 psig and temperatures of 150F (65C).These economically designed units provide high quality and accuracy when properly installed. The durability of the polycarbonate allows the flow meter to provide years of trouble-free service.Features and Benefits High impact polycarbonate High quality construction Flow ranges: Air 50 CCM to 100 LPM, Water 4 CCM to 40 GPH 10:1 turn direct reading scalesProduct Application Information For use with air and water. Ideally suited for OEM applications.Supplied with mounting brackets & built-in bezel
Popular items
FR5L61PI, Key Instruments
High Flow FR5000 Series Indicator
Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales.
Model FR5000 flowmeters have standard 1"" FNPT PVC fittings.
Features and Benefits
Durable, 1 piece, clear acrylic construction
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-Ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Product Application Information
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
Note
Flow indicators and base valve sold seperately.
Popular items
2510A2L10BVBN, Key Instruments
Key Instruments Flow Meter
The Key Instruments FR2000 series variable area flow meter measures the liquid flow rate of 10 ccm to 100 cm³/min. This is a standard, precision-machined, acrylic flow meter for liquids or gases. It has direct-reading air or water scales and is available in either English or metric scales. This is a durable and affordable product that provides highly repeatable results. It can be configured with a control valve on the inlet. The fittings and the valve are specified in brass and the O-rings are provided with Buna-N. These precision-machined, 1-piece, acrylic-body blocks can handle demanding projects and mounting panels along with high durability. It is used for many non-corrosive, low-pressure air, water and gas flow applications.
Note:
Please ensure you have selected the correct gauge for air, gas, or water.
Features and Benefits
Pipe diameter range is 1/8 in
Connection type is 1/8 NPT female
Maximum operating pressure is 6.89bar
Maximum operating temperature is 65°C
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Durable 1-piece, clear, acrylic construction
Applications
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
Popular items
MR3A16BVBN, Key Instruments
Low Cost Polycarbonate Flow Meters
MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or CCM and GPH for water.
Manufactured from high-impact polycarbonate, the MR3000 series can operate at pressures of 100 psig and temperatures of 150°F (65°C).
These economically designed units provide high quality and accuracy when properly installed. The durability of the polycarbonate allows the flow meter to provide years of trouble-free service.
Features and Benefits
High impact polycarbonate
High quality construction
Flow ranges: Air 50 CCM to 100 LPM, Water 4 CCM to 40 GPH
10:1 turn direct reading scales
Product Application Information
For use with air and water. Ideally suited for OEM applications.
Supplied with
mounting brackets & built-in bezel
Popular items
2530A4L69BVBN, Key Instruments
Pipe diameter range is 1/4 inConnection type is 1/4 NPT femaleMaximum operating pressure is 6.89barMaximum operating temperature is 65CIt is use for long term trouble free operationEasy-to-read scalesThreaded brass inserts for quick installationEasy disassembly and assembly for maintenanceDurable, 1-piece, clear, acrylic constructionStable, easy-to-read floatSuperior qualityMounting inserts 10-32 UNF x 3/8inIt has maximum pressure 100PSIG
New Items
New items
1250AD6053ALAVB, Key Instruments
Key Instruments Flow Meter
The Key Instruments GR series variable area flow meter measures the gas flow rate of 0.5L/min to 5L/min. It is made from borosilicate glass, it is ideal for use with liquids or gases. The user can configure it with a standard or precision control valve on the inlet, the outlet, or no valve at all.
Features and Benefits
Pipe diameter range is 1/8in
Connection type 1/8 NPT female
Maximum operating pressure is 13.7bar
Maximum operating temperature is 93°C
Water ranges from 21CCM to 2080CCM
Air ranges from 50CCM to 66370CCM
Rotating lens allows 180° view with magnification
New items
2540A5L61PI, Key Instruments
High Flow FR5000 Series Indicator
Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales.
Model FR5000 flowmeters have standard 1"" FNPT PVC fittings.
Features and Benefits
Durable, 1 piece, clear acrylic construction
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-Ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Product Application Information
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
New items
MR3A17BVBN, Key Instruments
Low Cost Polycarbonate Flow Meters
MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or CCM and GPH for water.
Manufactured from high-impact polycarbonate, the MR3000 series can operate at pressures of 100 psig and temperatures of 150°F (65°C).
These economically designed units provide high quality and accuracy when properly installed. The durability of the polycarbonate allows the flow meter to provide years of trouble-free service.
Features and Benefits
High impact polycarbonate
High quality construction
Flow ranges: Air 50 CCM to 100 LPM, Water 4 CCM to 40 GPH
10:1 turn direct reading scales
Product Application Information
For use with air and water. Ideally suited for OEM applications.
Supplied with
mounting brackets & built-in bezel
New items
FR4L72BVBN, Key Instruments
FR4500 Series Flow meters
The FR4500 series is a standard precision-machined acrylic flow meter for liquids or gases and has direct reading air and water scales. The FR4500 flow meters can be configured with a control valve on the inlet or no valve at all, O-Rings are provided as Buna-N.
Features and Benefits
Easy-to-read scales
Water ranges from 1 LPM to 20 LPM
Air ranges from 14 LPM to 560 LPM
Threaded brass inserts for quick installation
Easy disassembly and assembly for maintenance
Durable 1 piece clear acrylic construction
Stable, easy-to-read float
Superior quality
Product Application Information
Compatible with most gases and fluids.
Note
Mounting screws are required (available separately).
New items
2540A5A55PI, Key Instruments
High Flow FR5000 Series Indicator
Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales.
Model FR5000 flowmeters have standard 1"" FNPT PVC fittings.
Features and Benefits
Durable, 1 piece, clear acrylic construction
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-Ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Product Application Information
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
New items
FR4L69BVBN, Key Instruments
FR4500 Series Flow metersPrecision machined from solid acrylic blocks with Buna-N sealsValve: Brass cartridge typeHigh accuracy performance for both air and water applicationsFitted with a high quality 12-14 turn precision brass valve for precise meteringDesigned for front panel mountingInlets/outlet ports and mounting studs extend through the panel for easy installationUnits may be disassembled for easy maintenanceStable and easy to read floatsAccuracy 3% Full scaleSuitable stainless steel push-in fittings, for example:536-2577NoteMounting screws are required (available separately).
New items
2510A2L10BVBN, Key Instruments
Key Instruments Flow Meter
The Key Instruments FR2000 series variable area flow meter measures the liquid flow rate of 10 ccm to 100 cm³/min. This is a standard, precision-machined, acrylic flow meter for liquids or gases. It has direct-reading air or water scales and is available in either English or metric scales. This is a durable and affordable product that provides highly repeatable results. It can be configured with a control valve on the inlet. The fittings and the valve are specified in brass and the O-rings are provided with Buna-N. These precision-machined, 1-piece, acrylic-body blocks can handle demanding projects and mounting panels along with high durability. It is used for many non-corrosive, low-pressure air, water and gas flow applications.
Note:
Please ensure you have selected the correct gauge for air, gas, or water.
Features and Benefits
Pipe diameter range is 1/8 in
Connection type is 1/8 NPT female
Maximum operating pressure is 6.89bar
Maximum operating temperature is 65°C
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Durable 1-piece, clear, acrylic construction
Applications
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
New items
FR5L60PI, Key Instruments
High Flow FR5000 Series Indicator
Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales.
Model FR5000 flowmeters have standard 1"" FNPT PVC fittings.
Features and Benefits
Durable, 1 piece, clear acrylic construction
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-Ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Product Application Information
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
Note
Flow indicators and base valve sold seperately.
New items
FR5L61PI, Key Instruments
High Flow FR5000 Series Indicator
Series FR5000 is a standard precision-machined acrylic flow meter for liquids and gases, with direct reading air or water scales.
Model FR5000 flowmeters have standard 1"" FNPT PVC fittings.
Features and Benefits
Durable, 1 piece, clear acrylic construction
Large scales are easy-to-read
Valve with positive stop stays in place under pressure
Rod guided float for stable measurements
Fitting, valve and O-Ring options accommodate multiple applications
Multiple connection options for easier installation
Easy disassembly and assembly for maintenance
Product Application Information
Air sampling equipment aquaculture
Desalinisation equipment
Gas analysers
Medical systems
Photo processing equipment
Water treatment and distribution systems
Purge
Note
Flow indicators and base valve sold seperately.
New items
MR3A13BVBN, Key Instruments
Low Cost Polycarbonate Flow Meters MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or CCM and GPH for water.Manufactured from high-impact polycarbonate, the MR3000 series can operate at pressures of 100 psig and temperatures of 150F (65C).These economically designed units provide high quality and accuracy when properly installed. The durability of the polycarbonate allows the flow meter to provide years of trouble-free service.Features and Benefits High impact polycarbonate High quality construction Flow ranges: Air 50 CCM to 100 LPM, Water 4 CCM to 40 GPH 10:1 turn direct reading scalesProduct Application Information For use with air and water. Ideally suited for OEM applications.Supplied with mounting brackets & built-in bezel
New items
MR3A16BVBN, Key Instruments
Low Cost Polycarbonate Flow Meters
MR3000 molded flow meters supplied with scales in LPM and SCFH for air, or CCM and GPH for water.
Manufactured from high-impact polycarbonate, the MR3000 series can operate at pressures of 100 psig and temperatures of 150°F (65°C).
These economically designed units provide high quality and accuracy when properly installed. The durability of the polycarbonate allows the flow meter to provide years of trouble-free service.
Features and Benefits
High impact polycarbonate
High quality construction
Flow ranges: Air 50 CCM to 100 LPM, Water 4 CCM to 40 GPH
10:1 turn direct reading scales
Product Application Information
For use with air and water. Ideally suited for OEM applications.
Supplied with
mounting brackets & built-in bezel
New items
2530A4L69BVBN, Key Instruments
Pipe diameter range is 1/4 inConnection type is 1/4 NPT femaleMaximum operating pressure is 6.89barMaximum operating temperature is 65CIt is use for long term trouble free operationEasy-to-read scalesThreaded brass inserts for quick installationEasy disassembly and assembly for maintenanceDurable, 1-piece, clear, acrylic constructionStable, easy-to-read floatSuperior qualityMounting inserts 10-32 UNF x 3/8inIt has maximum pressure 100PSIG
Don’t hesitate to ask questions for better clarification.