Maeda Koki MKC type WATER SIGNAL – Flow Indicator with Valve

Maeda Koki MKC type WATER SIGNAL – Flow Indicator is a compact and efficient device designed for the visual monitoring and control of water flow in industrial piping systems. Integrating a transparent metering tube with a manual adjustment valve, this unit allows operators to simultaneously check flow status and regulate volume without the need for separate components. It is an ideal solution for maintaining consistent water supply in cooling circuits and general machinery applications.

Description

Maeda Koki MKC type WATER SIGNAL – Flow Indicator is engineered to provide a clear, direct reading of fluid movement. Operating on the variable area principle, the device uses a float ball within a transparent tapered pipe. As water flows through the unit, the ball rises; when it aligns with the fixed red indication line, the operator can visually confirm that the approximate required flow quantity has been reached.

A key advantage of the MKC series is the Integrated Flow Adjustment Valve. Unlike simple sight glasses that only show movement, the MKC type includes a miniature valve mechanism. This allows users to throttle the flow directly at the indicator, ensuring precise control over the water volume entering the equipment. This dual-function design simplifies piping layouts by reducing the number of required fittings and valves, making it a cost-effective choice for facility management.

Brand

Maeda Koki

Specification

Standard specifications

FluidWater
Flow quantityThe reference mentioned aboveWhen standard specifications flow quantity or less want the above, please refer.
ConnectionRc internal threadChange to R screw
The combination with the R screw is possible, too.
Heat-resistant temperatureA maximum of 80 degrees CelsiusI can produce the heat-resistant specifications (a maximum of 120 degrees Celsius), too.
Withstand pressure1MPa
MaterialsTransparent pipeAcrylicThe heat-resistant specifications become the Pyrex glass.
Protective coverBC (gunmetal)I can produce the product made in aluminum, too.
CouplingC3604 (brass)I can produce the product made in SUS, too.
SpringSUS304
Nylon ballNylon 66I may use a cylindrical float.
O ringNitrile rubberThe heat-resistant specifications become the fluorine rubber.

Features

  • It can see a flow at first sight
    It is a rheoscope confirming fluid flow by the movement of transparent balls (or afloat) in the jurisdiction. It cannot confirm the flow quantity.
  • With protective cover
    By a metal protective cover, It reduces the possibility of damage by shocks from the outside.
  • The installation direction does not matter
    Because It uses a spring inside, the posture when I attach it looks up and looks down and can perform sideways-facing freely.

Applications

MKT is a flow indicator, flow switch, and flow control depending on the type. It can confirm the flow of the water by viewing the movement of the ball. With a protective cover, when you want to confirm approximate flow quality, please choose the MKCT type.

Additional Information

List of models

ModelDimensions (mm)Standard specifications flow quantity
(L/min)
Connection diameterFull lengthOverall widthDepthMinimumMaximum
MKC20-1TWRc1/88030220.66
MKC20-2TWRc1/48030220.66
MKC20-3TWRc3/88630220.66
MKC30-2TWRc1/41044332220
MKC30-3TWRc3/81044332220
MKC30-4TWRc1/21104332220
MKC35-4TWRc1/21245044530
MKC35-6TWRc3/41245044530
MKC45-6TWRc3/414262501560
MKC45-8TWRc114262501560