Liquid Mass Flow Conrtoller

In order to respond to the new field, KOFLOC has been focus on liquid-related product. As a first step, we developed liquid mass flow controller 「FCL-200」 and ultrasonic flow meter for various liquid 「FML-500」. We will continuously try to increase our liquid-related lineup to respond to client’s demand, so please don’t hesitate to contact KOFLOC even if it does not meet your needs.

Liquid Flow Meter
  • Ultrasonic Flow Meter
  • Flowmeter with Precision Needle Valve
  • Flowmeter with Precision Needle Valve
  • Flowmeter with Bellows Needle Valve
    Flow meter with Bellows Needle Valve
    MODEL RK1500 SERIES
  • High Precision Flowmeter
    High Precision Flow meter
    MODEL RK1450 SERIES
  • High Pressure Flowmeter(for Sensitive Measurements)
    High Pressure Flowmeter(for Sensitive Measurements)
    MODEL RK1400 SERIES
  • Compact Reed Switch Flow Meter for Alarm Switches
    Compact Reed Switch Flow Meter for Alarm Switches
    MODEL RK1930,RK1935 SERIES
  • Reed Switch Flowmeters(for Alarm Switches)
    Reed Switch Flowmeters (for Alarm Switches)
    MODELS RK1970/RK1975/RK1976 SERIES
  • Large Capacity Flowmeters
    Large Capacity Flow meters
    MODELS RK2000/RK2005/RK2006 SERIES
  • Precision Flow Meter for Laboratory(with Stand for Precision Flow Measurement)
    Precision Flow Meter for Laboratory(with Stand for Precision Flow Measurement)
    MODEL RK1360 SERIES
  • Acrylic Resin Flow Meter
    Acrylic Resin Flow Meter
    MODEL RK400 SERIES
  • Acrylic Resin Flow Meter
    Acrylic Resin Flow Meter
    MODEL RK500 SERIES
  • Large Capacity Flow Meter
    Large Capacity Flow Meter
    MODEL RK1950AP SERIES

Flow Control Valve Kofloc

A flow control valve controls the flow rate based on the change of resistance of the flow channel using a needle to adjust the opening of the flow channel that functions as a small orifice. Flow control valves come in a simply type, precision type, and bellows type. Use an appropriate type according to the price, accuracy, and usage. Gas and liquid constant flow valves, shut-off valves, proportional solenoid valves, and many other types of valve are also available.

Gas Flow Control Vlave

  • Small Proportional Solenoid Valve
    Small Proportional Solenoid Valve
    MODEL 3000 SERIES
  • Precision Needle Valve w/Non-rotary Needle
    Precision Needle Valve w/Non-rotary Needle
    MODEL 2412 SERIES
  • Multidial Type Precision Needle Valve
    Multidial Type Precision Needle Valve
    MODEL 2412M SERIES
  • Bellows Needle Valve
    Bellows Needle Valve
    MODEL 2450 SERIES
  • Simplified Paramount Miniature Needle Valve
    Simplified Paramount Miniature Needle Valve
    MODEL 2400 SERIES
  • Large Capacity Precision Needle Valve
    Large Capacity Precision Needle Valve
    MODEL 2412D SERIES
  • Multiple Rotation Type Large Capacity Simplified Needle Valve
    Multiple Rotation Type Large Capacity Simplified Needle Valve
    MODEL 2400D SERIES
  • Variable Secondary Pressure Flow Controller
    Variable Secondary Pressure Flow Controller
    MODEL 2203 SERIES
  • Variable Primary Pressure Flow Controller
    Variable Primary Pressure Flow Controller
    MODEL 2204 SERIES

Liquid Flow Control Valve

  • Precision Needle Valve w/Non-rotary Needle
    Precision Needle Valve w/Non-rotary Needle
    MODEL 2412 SERIES
  • Bellows Needle Valve
    Bellows Needle Valve
    MODEL 2450 SERIES
  • All-Teflon Constant Flow Valve for Liquids/Chemicals
    All-Teflon Constant Flow Valve for Liquids/Chemicals
    MODEL 2600-T SERIES
  • Constant Flow Valve for Liquid
    Constant Flow Valve for Liquid
    MODEL 2600S/2600PVC SERIES
  • Constant Flow Valve for Liquid
    Constant Flow Valve for Liquid
    MODEL 2600-PPS SERIES










Gas Area Flow Meter Kofloc

An area flow meter has a float in a conical cylinder (tapered tube) with a larger end in the upper section and a smaller end in the lower section. The float moves up and down according to the intensity of the flow, and the position at which the float balances indicates the flow rate. Not only simple flow meters that merely measure the flow rate but also flow meters with a valve for flow control, flow meters with a load pressure fluctuation type flow controller, flow meters with a supply pressure fluctuation type flow controller, and flow meters with an alarm switch are available.

Gas Area Flow Meter Model 
  • Flowmeter with Precision Needle Valve MODEL RK1250 SERIES
  • Flowmeter with Precision Needle Valve MODEL RK1200 SERIES
  • Flowmeter with Bellows Needle Valve MODEL RK1500 SERIES
  • Low cost MODEL RK1700 SERIES
  • Purge Flowmeter with Needle Valve MODEL RK1650 SERIES
  • Purge Flowmeter with Needle Valve MODEL RK1600R SERIES
  • Simplified Flexible Flow Meter MODEL RK1100 SERIES
  • Flow Meter with Flow Controller MODEL 2503F SERIES
  • Flow Meter with Flow Controller MODEL 2504FR SERIES
  • High Precision Flowmeter MODEL RK1450 SERIES
  • High Pressure Flowmeter(for Sensitive Measurements) MODEL RK1400 SERIES
  • Purge Flowmeter MODEL RK1050 SERIES
  • Purge Flowmeter MODEL RK1000 SERIES
  • Low-Cost Flow Meter for Air and Nitrogen MODEL RK1150 SERIES
  • Reed Switch Flowmeters(for Alarm Switches) MODELS RK1970/RK1975/RK1976 SERIES
  • Flowmeters with Photosensor(for Alarm Switches) MODEL RK1812/RK1814 SERIES
  • Large Capacity Flowmeters MODELS RK2000/RK2005/RK2006 SERIES
  • Precision Flow Meter for Laboratory(with Stand for Precision Flow Measurement) MODEL RK1360 SERIES
  • Multiple Flow Meter with Needle Valve MODEL RK120X SERIES
  • Multiple Flow Meter MODEL RK140X SERIES
  • Flow Meter for Gas Mixing MODEL RK120XM SERIES
  • Acrylic Resin Flow Meter MODEL RK200 SERIES
  • Acrylic Resin Flow Meter MODEL RK500 SERIES
  • Large Capacity Flow Meter MODEL RK1950AP SERIES
  • Precision Flow Meter for Pressure Regulator MODEL RK4400 SERIES
Liquid Area Flow Meter Model
  • Flowmeter with Precision Needle Valve MODEL RK1200 SERIES
  • High Precision Flowmeter MODEL RK1450 SERIES
  • High Pressure Flowmeter(for Sensitive Measurements) MODEL RK1400 SERIES
  • Compact Reed Switch Flow Meter for Alarm Switches MODEL RK1930,RK1935 SERIES
  • Reed Switch Flowmeters(for Alarm Switches) MODELS RK1970/RK1975/RK1976 SERIES
  • Large Capacity Flowmeters MODELS RK2000/RK2005/RK2006 SERIES
  • Precision Flow Meter for Laboratory(with Stand for Precision Flow Measurement) MODEL RK1360 SERIES
  • Acrylic Resin Flow Meter MODEL RK400 SERIES
  • Acrylic Resin Flow Meter MODEL RK500 SERIES
  • Large Capacity Flow Meter MODEL RK1950AP SERIES

Flow Meters and Controller for Gas Kofloc

Kofloc are Manufacturing and sale of area flow meters, fluid control valves, electronic flow meters, various fluid controllers, nitrogen, oxygen and ozone gas generators, fuel battery evaluation devices, deodorizers, water processors, etc.

Kofloc has four main product :
  • Gas Flow Instrument
  • Liquid Flow Instrument
  • Gas Generator
  • Engineering Device

Mass flow controllers 


In comparison with the conventional mechanical products, the mass flow measurement / control technology used in a mass flow meter and controller extracts electrical signals from the flow without significantly influencing the temperature or pressure, thus permitting sophisticated flow measurement and control. The technology is widely used for manufacturing semiconductors, liquid crystal, optical fibers and other electronic devices, gas supply for fuel cells, and fuel gas control for burners, foods, biotechnology, as well as for experimental facilities and production/inspection systems in many other industries.

Kofloc model Mass Flow Controller: 
  • Digital Mass Flow Controller DF-200C SERIES
  • Digital Mass Flow Controller DF-250C SERIES
  • Digital Mass Flow Controller with Indicator DF-300C SERIES
  • Digital Mass Flow Controller with Indicator DF-350C SERIES
  • All-Metal Digital Mass Flow Controller DF-550C SERIES
  • Mass Flow Controller/Mass Flow Meter with Indicator MODEL D8500 SERIES
  • Mass Flow Controller/Mass Flow Meter with Indicator MODEL 8500 SERIES
  • Standard Mass Flow Controller MODEL 3660 SERIES
  • High-grade Mass Flow Controller MODEL 3200 SERIES
  • Low-cost Metal Sealed Mass Flow Controller/Meter MODEL 5400 SERIES
  • High Grade Metal Seal Mass Flow Controller MODEL 5100 SERIES
  • Compact Handy Mass Flow Control/Measurement UnitFLOW COMPO

Kofloc Mass Flow Meter
  • Mass Flow Controller/Mass Flow Meter with Indicator MODEL D8500 SERIES
  • Mass Flow Controller/Mass Flow Meter with Indicator MODEL 8500 SERIES
  • Low-cost Metal Sealed Mass Flow Controller/Meter MODEL 5400 SERIES
  • Low-cost Mass Flow Meter with Display MODEL 3810DSII SERIES
  • High-grade Mass Flow Meter MODEL3100 SERIES
  • Standard Mass Flow Meter MODEL3760 SERIES
  • Low-cost Mass Flow Sensor MODEL3810S SERIES
  • Low-cost Digital Mass Flow Meter MODEL D3810 SERIES
  • Compact Handy Mass Flow Control/Measurement Unit FLOW COMPO
Kofloc Transmitter, Display and Accesories for Flow
  • Compact Readout Unit MODEL CR-400
  • Flow Indicators MODEL DPM-3
  • Flow Setting Device MODEL CK SERIES
  • Mass Flow Controller/Meter Power Units MODEL PSK-FB SERIES

Water Signal Flow Indicator Maeda Koki

Flow indicator and Oil signal  MK model produced by Maeda Koki in Japan,  Oil signal and Water signal Meodel MK  has a function for detecting minimal flow. MK water signal  manufactured with  using acrylic tube is limited to the use of 80 ℃ or less. (Flow switch of the product is limited to the use of 60 ℃ or less.)
If you want to use the mixed oil of the like, lubricants, please note the “Aburaaka”. When the inside or within the fluid piping “garbage” and “iron powder” is mixed, there is a possibility that the ball (float) may not work. We hope the use of the filter or the like.


 Model and type MK series Oil and Water Signal produced by Maeda Koki Japan :

Flow rate visual type oil signal (flow cytometry)

  • MKT type Oil signl
    • flow rate of the oil with the naked eye.
  • MKTV type OIL SIGNAL
    • With flow rate adjustment valve
  • MKCT type OIL SIGNAL
    • with protective cover
  • MKCTV type OIL SIGNAL
    • With protective cover 
    • With flow rate adjustment valve
Switch with oil signal (flow switch)
  • MKCM type OIL SIGNA
    • The electrical contacts type galvanometer with reed switch. 
    • with protective cover 
    • You can specify the operation flow rate of the switch.

Galvanometer type oil signal (flow cytometry)

  • MK type OIL SIGNAL
    • You can check the flow of oil in the visual motion of the ball.
  • MKC type OIL SIGNAL
    • You can check the flow of oil in the visual motion of the ball. 
    • with protective cover
Copper tube only oil signal (flow cytometry)
  • MKK type OIL SIGNAL
    • You can check the flow of oil in the visual motion of the ball. 
    • With chuck sleeve copper tube conclusion
Decelerator dedicated oil signal (flow cytometry)
  • MKK25-8-P 
    • You can check the flow of oil in the visual motion of the ball. 
    • With chuck sleeve copper tube conclusion
  • MKC20-8-P
    • You can check the flow of oil in the visual motion of the ball. 
    • With chuck sleeve copper tube conclusion 
    • with protective cover
Drip type oil signal (flow cytometry)
  • MKD type OIL SIGNAL
    • You can visually check a small flow rate dropping situation.
  • MKDV type OIL SIGNAL
    • You can visually check a small flow rate dropping situation. 
    • With flow rate adjustment valve

Flow indicator

  • FITV 
    • flow to distribute the fluid 
    • With flow rate adjustment valve

Switch with flow indicator

  • FITVM
    • flow to distribute the fluid 
    • With flow rate adjustment valve 
    • with flow switch

Flow rate visual type water signal (flow cytometry)

  • MKC type WATER SIGNAL 
    • You can see with the naked eye the flow of water in the movement of the ball. 
    • with protective cover 
      • ※ If you want to see the approximate flow rate MKCT Please choose the type.