[Monitoring the flow with electrical signals]
When the set flow rate is reached, the switch activates and outputs a signal to the equipment.
It can reliably detect flow rate drops and stoppages, and can be used for equipment protection and automatic control.
*The switch settings are fixed and are set at the time of shipment.
[Visualizing the flow of oil]
The position of the float inside the transparent tube allows you to easily check the oil flow.
It enables early detection of abnormalities such as reduced flow rate and pipe blockages, supporting the stable operation of equipment.
[Flexible installation options available]
It can be installed regardless of the mounting direction, including vertical, horizontal, or upside down.
The piping layout offers a high degree of flexibility, allowing for easy installation of new facilities as well as retrofitting existing ones.
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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 | CAC902 | For aluminum models, please choose the MKAM type. | |
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. - If viscosity and temperature are not specified, the setting will be 40 degrees.