Description
Maeda Koki MKCT Flow Signal Indicator
Maeda Koki MKCT Flow Signal Indicator is a precision inline liquid flow monitoring device engineered for simultaneous visual flow verification and electrical contact switching. Manufactured by Maeda Koki Co., Ltd., the MKCT series features a clear glass sight window combined with an internal mechanical flap/piston mechanism and electrical microswitch. Ideal for space-constrained installations, cooling water lines, oil lubrication circuits, and industrial process loops, the Maeda Koki MKCT Flow Signal Indicator provides immediate visual feedback and automated safety interlocks whenever fluid flow drops below or exceeds target operational thresholds.
Advantages Of Maeda Koki MKCT Flow Signal Indicator
Flow indicator and Oil signal MKCT model produced by Maeda Koki in Japan, Oil signal and Water signal Meodel MKCM has a function for detecting minimal flow. MKCT 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.
- I can confirm approximate flow quantity of the oil/water/gaseous by viewing
- With protective cover
Technical Overview & Operation
The Maeda Koki MKCT Flow Signal Indicator operates using a mechanical spring-opposed flap or piston mechanism coupled to an external microswitch housing.
As liquid enters the inlet port, fluid pressure and velocity displace the internal flap against a calibrated spring. Plant technicians can visually observe fluid movement, clarity, and bubble content through the toughened sight window. When the volumetric flow rate reaches or falls below the designated setpoint value, the mechanical displacement actuates the electrical microswitch contacts (NO/NC). This sends a discrete dry-contact signal to external alarm horns, PLC safety circuits, or trip relays, protecting industrial machinery against dry-running or cooling failure.
Specifications
MKCT Flow Signal Indicator For Water
| Fluid | Water |
| Flow quantity | The reference mentioned above | When standard specifications flow quantity or less want the above, please refer. |
| Connection | Rc internal thread | Change to R screw
The combination with the R screw is possible, too. |
| Heat-resistant temperature | A maximum of 80 degrees Celsius | – |
| Withstand pressure | 1MPa | – |
| Materials | Transparent pipe | Acrylic | – |
| Coupling | C3604 (brass) | I can produce the product made in SUS, too. |
| Protective cover | BC | I can produce the product made in aluminum, too. |
| Spring | SUS304 | – |
| Nylon ball | Nylon 66 | I may use a cylindrical float. |
| O ring | Nitrile rubber | – |
MKCT Flow Signal Indicator For Oil
Standard specifications (protest a form)
| Fluid | Oil |
| Connection | Rc internal thread | Change to R screw
The combination with the R screw is possible, too. |
| Heat-resistant temperature | A maximum of 80 degrees Celsius | – |
| Withstand pressure | 1MPa | – |
| Materials | Transparent taper pipe | Acrylic | – |
| Coupling | C3604 (brass) | I can produce the product made in SUS, too. |
| Protective cover | BC | I can produce the product made in aluminum, too. |
| Spring | SUS304 | – |
| Nylon ball | Nylon 66 | I may use a cylindrical float. |
| O ring | Nitrile rubber | – |
Standard specifications (for the copper pipe)
| Fluid | Oil |
| Connection | The reference mentioned above | – |
| Heat-resistant temperature | A maximum of 80 degrees Celsius | – |
| Withstand pressure | 1MPa | – |
| Materials | Transparent taper pipe | Acrylic | – |
| Coupling | C3604 (brass) | – |
| Cap nut | C3604 (brass) | – |
| Zipper sleeve | Cu | – |
| Protective cover | BC | I can produce the product made in aluminum, too. |
| Spring | SUS304 | – |
| Nylon ball | Nylon 66 | I may use a cylindrical float. |
| O ring | Nitrile rubber | – |
MKCT Flow Signal Indicator For Gas
| Fluid | Gas |
| Connection | Rc internal thread | Change to R screw
The combination with the R screw is possible, too. |
| Heat-resistant temperature | A maximum of 80 degrees Celsius | – |
| Withstand pressure | 1MPa | – |
| Materials | Transparent pipe | Acrylic | – |
| Coupling | C3604 (brass) | I can produce the product made in SUS, too. |
| Protective cover | BC | I can produce the product made in aluminum, too. |
| Spring | SUS304 | – |
| Nylon ball | Nylon 66 | I may use a cylindrical float. |
| O ring | Nitrile rubber | – |
Features
It shows flow quantity by viewing
Because use a transparent taper pipe, with a ball (or a float) and the indication red line
I can confirm approximate flow quantity by looking at the position concerned.
With protective cover
By a metal protective cover, I reduce possibility of the damage by shocks from the outside.
The installation direction does not matter
The posture when attach it as use a spring inside looks up and look down; and
I can perform sideways-facing freely.
