Flow switch
It detects the fluid flow and switches the device ON or OFF at the specified flow rate.
*The switch is fixed (the setting cannot be changed later).
You can see the flow of oil at a glance.
This is a current galvanometer that checks the fluid flow by observing the movement of a float inside a transparent tube.
With protective cover
The metal protective cover prevents damage from external impacts, etc.
It will reduce the burden.
The mounting direction does not matter.
Since it uses a spring inside, the posture when installing it is
You can freely perform actions such as facing upwards, downwards, and sideways.
It detects the fluid flow and switches the device ON or OFF at the specified flow rate.
*The switch is fixed (the setting cannot be changed later).
You can see the flow of oil at a glance.
This is a current galvanometer that checks the fluid flow by observing the movement of a float inside a transparent tube.
With protective cover
The metal protective cover prevents damage from external impacts, etc.
It will reduce the burden.
The mounting direction does not matter.
Since it uses a spring inside, the posture when installing it is
You can freely perform actions such as facing upwards, downwards, and sideways.
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Model List
Model | Dimensions (mm)[Due to the casting surface, there may be individual variations in dimensions.] | Flow rate (L/min) | |||||
Connection port diameter | Length | Width | Depth | Minimum inner diameter φmm | Operating flow rate specified range | maximum | |
MKCM20-1TL-OFF | Rc1/8 | 80 | 30 | 22 | 6.5 | 0.005 (5cc) to 2 | 5 |
MKCM20-1TL-ON | |||||||
MKCM20-2TL-OFF | Rc1/4 | 80 | 30 | 22 | 6.5 | 0.005 (5cc) to 2 | 5 |
MKCM20-2TL-ON | |||||||
MKCM20-3TL-OFF | Rc3/8 | 86 | 30 | 25 | 6.5 | 0.005 (5cc) to 2 | 5 |
MKCM20-3TL-ON | |||||||
MKCM30-2TL-OFF | Rc1/4 | 100 | 44 | 32 | 9.5 | 0.05 (50cc) to 5 | 10 |
MKCM30-2TL-ON | |||||||
MKCM30-3TL-OFF | Rc3/8 | 104 | 44 | 32 | 9.5 | 0.05 (50cc) to 5 | 10 |
MKCM30-3TL-ON | |||||||
MKCM30-4TL-OFF | Rc1/2 | 110 | 44 | 32 | 9.5 | 0.05 (50cc) to 5 | 10 |
MKCM30-4TL-ON | |||||||
MKCM35-4TL-OFF | Rc1/2 | 124 | 49 | 44 | 13.5 | 1 to 10 | 25 |
MKCM35-4TL-ON | |||||||
MKCM35-6TL-OFF | Rc3/4 | 124 | 49 | 44 | 13.5 | 1 to 10 | 25 |
MKCM35-6TL-ON | |||||||
MKCM45-6TL-OFF | Rc3/4 | 142 | 62 | 50 | 18.0 | 3 to 15 | 50 |
MKCM45-6TL-ON | |||||||
MKCM45-8TL-OFF | Rc1 | 142 | 62 | 50 | 18.0 | 3 to 15 | 50 |
MKCM45-8TL-ON | |||||||
When ordering or requesting a quote□Please specify your choice.
Model MKCM□□-□TL-OFF(ON) | Types of oil□ (or viscosity of oil)□cSt) | Switch operating flow rate □L / min |
Example: MKCM20-2TL-OFF Oil type ISOVG32 Switch operating flow rate 1L/min
*Please specify whether you want the 'OFF' or 'ON' contact method.
'OFF type'... The contact turns OFF when the flow rate decreases (normally open/A contact).
'ON type'... The contact turns ON when the flow rate decreases (normally closed/B contact).
*Please specify whether you want the 'OFF' or 'ON' contact method.
'OFF type'... The contact turns OFF when the flow rate decreases (normally open/A contact).
'ON type'... The contact turns ON when the flow rate decreases (normally closed/B contact).
Standard specifications
Fluid | oil | ||
Working flow rate | Please specify a flow rate value within the specified range of the operating flow rate as described above. (Please specify a flow rate value that is at least one-third of the minimum usage flow rate.) | ||
Connection | Rc female thread | Change to R male thread It can also be used in combination with an R-type male thread. | |
Eur-lex.europa.eu eur-lex.europa.eu | Maximum 60℃ | Heat-resistant versions (up to 100°C) are also available. | |
pressure resistance | 1MPa | Pressure-resistant versions (up to 5 MPa) are also available. | |
Maximum operating voltage | DC, AC 300V | ||
Maximum operating current | DC, AC 0.5A | ||
Contact capacity | 50VA | ||
material quality | transparent tube | Acrylic | Heat-resistant and pressure-resistant versions are made of brass tubing (C3604). The floats in heat-resistant and pressure-resistant products cannot be visually inspected. |
Protective covers | BC (gun metal) | We can also manufacture them in aluminum. | |
Fitting | C3604 (brass) | We can also manufacture them in stainless steel (SUS). | |
Spring | SUS304 | - | |
Includes magnet Float | Aluminum | - | |
O-ring | Nitrile rubber | The heat-resistant and pressure-resistant version uses fluororubber. | |
Reed switch | Commercial goods | - | |
Lead Wire (Standard product 200mm) | Commercial goods | Specify the length of the lead wires. It is also possible to change to a cabtyre cord. | |
Precautions for using the flow switch
1. Precautions regarding the effects of magnetism
- Since reed switches operate using magnetism, please use them in a location where they are not affected by magnetic fields.
- The presence of magnetic materials such as iron near the reed switch can cause malfunctions.
2. Precautions regarding electrical wiring
- The flow switch is designed to prevent overcurrent from flowing to the reed switch due to faulty grounding or other reasons.
Please pay attention to the wiring. - Flow switches should be used as alarm detectors whenever possible.
When using this device in conjunction with other electrical equipment, please handle it with due consideration to the potential impact of any malfunctions. - Keeping the operating voltage and current as low as possible will extend the lifespan of the reed switch.
(Under normal conditions of 100V 0.5A, it can be used for approximately 1,000,000 switch operations)
3. Precautions regarding switch activation due to changes in oil temperature and viscosity.
- If the oil temperature or viscosity changes, the switch may not operate at the set flow rate, or the operating flow rate of the switch may change.
This may change.