Japan, Maeda Koki
Maeda Koki MKC Type Oil Signal

Made in Japan
Manufacturer: Maeda Machinery Research Institute Ltd.
Model: MKC Type
Features
- Flow is visible at a glance
- This is a flow detector that checks the flow of fluid by the movement of a ball (or float) inside a transparent tube.
- The flow rate cannot be confirmed.
- Comes with a protective cover
- The metal protective cover reduces the possibility of damage due to external impacts.
- Installation orientation is not important Since a spring is used inside, the orientation when installing can be freely adjusted, such as upward, downward, or sideways.
Model list
Model | Dimensions (mm) [ The overall width is a cast surface, so there may be individual differences in dimensions] | Example: VG68 at 40℃ (L/min) | |||||
Connection port size | full length | Overall width | Depth | minimum | maximum | ||
Screw – in type | MKC20-1TL | Rc1/8 | 80 | 30 | twenty two | 0.3 | Five |
MKC20-2TL | Rc1/4 | 80 | 30 | twenty two | 0.3 | Five | |
MKC20-3TL | Rc3/8 | 86 | 30 | twenty two | 0.3 | Five | |
MKC30-2TL | Rc1/4 | 100 | 44 | 32 | 1.5 | Ten | |
MKC30-3TL | Rc3/8 | 104 | 44 | 32 | 1.5 | Ten | |
MKC30-4TL | Rc1/2 | 110 | 44 | 32 | 1.5 | Ten | |
MKC35-4TL | Rc1/2 | 124 | 49 | 44 | 2 | twenty five | |
MKC35-6TL | Rc3/4 | 124 | 49 | 44 | 2 | twenty five | |
MKC45-6TL | Rc3/4 | 142 | 62 | 50 | Five | 50 | |
MKC45-8TL | Rc1 | 142 | 62 | 50 | Five | 50 |
Model | Dimensions (mm) | Maximum flow rate (L/min) | ||||
connection | full length | Overall width | depth | |||
For copper pipes | MKC20-4 | φ4 | 98 | 30 | twenty two | 1.5 |
MKC20-6 | φ6 | 100 | 30 | twenty two | Four | |
MKC20-8 | φ8 | 102 | 30 | twenty two | Five | |
MKC20-10 | φ10 | 107 | 30 | twenty two | Five | |
MKC30-10 | φ10 | 126 | 44 | 32 | Ten | |
MKC30-12 | φ12 | 126 | 44 | 32 | Ten | |
MKC30-14 | φ14 | 135 | 44 | 32 | Ten |
*Additional information about the model
If the connection inlet/outlet has an R male thread, the model number is MKC□□-□TOL. Example: MKC20-3TOL
Inlet has an R male thread, the model number is MKC□□-□TOML. Example: MKC20-3TOML
If the connection outlet has an R male thread, the model number is MKC□□-□TMOL. Example: MKC20-3TMOL
Inlet has an R male thread, the model number is MKC□□-□TOML. Example: MKC20-3TOML
If the connection outlet has an R male thread, the model number is MKC□□-□TMOL. Example: MKC20-3TMOL
Standard specifications (screw-in type)
fluid | oil | ||
connection | Rc female thread | Change to R male thread. Combination with R male thread is also possible. | |
Heatproof temperature | Maximum 80℃ | Heat-resistant specifications are also available. | |
Pressure resistance | 1MPa | – | |
Material | Transparent tube | acrylic | Heat-resistant Pyrex glass. |
Protective cover | BC (gunmetal) | Aluminum versions are also available. | |
Fittings | C3604 (Brass) | SUS products are also available. | |
spring | SUS304 | – | |
Nylon ball | Nylon 66 | In some cases, cylindrical floats are used. | |
O-ring | Nitrile Rubber | The heat-resistant version is made of fluororubber. |
Standard specifications (for copper pipes)
fluid | oil | ||
Flow | See above | – | |
Heatproof temperature | Maximum 80℃ | – | |
Pressure resistance | 1MPa | – | |
Material | Transparent tube | acrylic | – |
Protective cover | BC (gunmetal) | Aluminum versions are also available. | |
Fittings | C3604 (Brass) | – | |
Zipper Sleeve | Cu | – | |
spring | SUS304 | – | |
Nylon ball | Nylon 66 | In some cases, cylindrical floats are used. | |
O-ring | Nitrile Rubber | – |