General Information
KAWAKI MEASURING INSTRUMENT Co., LTD has manufactured parts of shield machine of major heavy industry manufacturers, hydraulic pressure-related parts of major machine manufacturers, and parts for protecting voltage inverters of major heavy electric manufacturers in addition to flow rate measurement gauge (flow meter, flow switch, flow sight etc.) since the initiation in April 1948. We are developing and manufacturing various types of flow meters to meet a very wide range of market requests.
Measurement of flow rate is necessary for comprehending and controlling quantities that are directly linked to manufacturing activity such as production volume of product, amount of raw materials usage, and consumption of energy (steam, fuel, etc.).
It is also necessary for maintaining and managing the water and sewerage disposing facilities, transportation of liquid, business transaction, and monitoring the discharge of pollutant, in addition to manufacturing activity.
On the other hand, there are various targets of flow rate measurement; gas, liquid, steam, powder and granular material. Furthermore, a lot of materials such as high-temperature and high-pressure steam, ultra low-temperature liquefied gas, slurry liquid (liquid containing much solid), pulp liquid, concentrated sulfuric acid, caustic soda, deep etching liquid such as plating liquid, high viscosity fluid such as kneading candy and grease cannot be measured easily.
The flow in conduits such as sewage and factory disposal that have open water surface, the air flow, and the flow of powder and granular material in open spaces are also targets of flow rate measurement, in addition to liquid and gas that flows in pipe lines.
Kawaki Product List
Flow Variable Area Flow Meter and Flow Switch
SF type flow switch / flow meter
- Suitable for high-temperature and high-pressure liquid of unclear liquid (oil etc.)
- The contact of flow switch is the internal variable type, however, if you change the contact frequently, the external variable type is also manufactured.
- For use outdoors and at places with bad environment, totally waterproof type (IEC, IP67) is also manufactured.
Specification
| Type | SF-M type instantaneous flow rate indicator |
| SF-MA type instantaneous flow rate indicator + with lower limit (upper limit) contact | |
| SF-MAA type instantaneous flow rate indicator + with lower limit (upper limit) contact | |
| Bore | 3/8B to 12B Flange type |
| RC3/8 to RC1.1/2 Screw type | |
| Withstanding pressure | Standard product 1.0MPa |
| Special order item 3.0MPa and above | |
| Temperature | Standard product 80°C or less |
| Special order item 300°C or less | |
| Accuracy | Each indication scale ±3% |
| Capacity of contact | For the micro switch used for the contact, three types shown below are separately used depending on bore and flow rate. |
| *15A: 125,250VAC、0.5A: 125VDC、0.25A: 250VDC | |
| *5A: 125,250VAC、0.5A: 125VDC、0.25A: 250VDC | |
| *10A: 125,250VAC | |
| Material of main unit | FC250,CAC406,SS400,SUS304,SUS316,SUS316L etc. |
| Material of main section | C3604B,SUS304,SUS316,SUS316L etc. |
| Remark | *For places with frequent vibration, please use earthquake resistant type. |
FY type flow switch / flow meter
- Suitable for comparatively small flow rate (equivalent to water 0 to 15L/min) of high-temperature and high-pressure fluid of unclear liquid (oil, etc.)
Specification
| Type | FY-M type instantaneous flow rate indicator |
| FY-M type instantaneous flow rate indicator | |
| Bore | 3/8B to 12B Flange type |
| RC3/8 to RC1.1/2 Screw type | |
| Withstanding pressure | Standard product 1.0MPa |
| Temperature | Standard product 80°C or less |
| Accuracy | Each indication scale ±3% |
| Capacity of contact | *5A: 125,250VAC,0.5A: 125VDC,0.25A: 250VDC |
| Material of main unit | FC250,CAC406,SUS304 |
| Material of main section | C3604B,SUS304 |
| Remark | *For places with frequent vibration, please use earthquake resistant SF type. |
| *If the use pressure is 1.0MPa or more, use SF type for high pressure. | |
| *For use outdoors and at places with bad environment, totally waterproof type (IEC, IP67) is also manufactured |
SA type flow switch / flow meter
- This flow meter / flow switch is the down-sized SF type and the features are same as those of SF type and SA type.
- The external variable type is also manufactured.
Specification
| Self-holding proximity switch | SA-M type instantaneous flow rate indicator |
| SA-MA type instantaneous flow rate indicator + with lower limit (upper limit) contact | |
| SA-MAA type instantaneous flow rate indicator + with lower limit (upper limit) contact | |
| Bore | 3/8B to 1B Flange type |
| RC3/8 to RC1 Screw type | |
| Withstanding pressure | Standard product 1.0MPa |
| Temperature | Standard product 80°C or less |
| Special order item 300°C or less | |
| Accuracy | Each indication scale ±3% |
| Capacity of contact | *50W: 0.5A,125VAC |
| Self-holding proximity switch | |
| Material of main unit | FC250,CAC406,SS400,SUS304,SUS316,SUS316L etc. |
| Material of main section | C3604B,SUS304,SUS316,SUS316L etc. |
| Remark | *For places with frequent vibration, please use earthquake resistant type. |
KY type flow switch / flow meter
- Suitable for unclear liquid because the indication part is separated using a mechanical seal
- Flow direction is not restricted
- Contact position is variable
Specification
| Type | KY-M type instantaneous flow rate indicator |
| KY-MA type instantaneous flow rate indicator + with lower limit (upper limit) contact | |
| Bore | 3/8B to 5B Flange type |
| RC3/8 to RC1.1/2 Screw type | |
| Withstanding pressure | Standard product 1.0MPa |
| Temperature | Standard product 80°C or less |
| Accuracy | Each indication scale ±5% |
| Capacity of contact | *15A: 125,250 or 480VAC,0.5A: 125VDC,0.25A: 250VDC |
| Application | Suitable for indication and warning of flow rate of lubrication oil quantity |
| Suitable for indication and warning of flow rate of fluid that contains iron powder | |
| Material of main unit | FC250,CAC406,SUS304 |
| Material of main unit | C3604B,SUS304 |
| Remark | *For places with frequent vibration, please use earthquake resistant SF type. |
| *If the use pressure is 1.0MPa or more, use SF type for high pressure. | |
| *The range of minimum scale is 0 to 30L/min (water) and 0 to 20L/min (oil). |
Orifice Flow Meter
Orifice flow meter
A simple structure that attaches a flow rate indicator to the corner tap orifice realizes superior cost performance and low-cost flow rate measurement even for large bore. Various types of flow rate indicators are lined up to meet wide-ranging needs.
- Can select either digital indication or analog indication.
- For relay output, up to two contacts are available.
- Various output signals such as analog signal and HART communication function are available.
- If power supply cannot be ensured, the analog indicator type or the digital indicator is supported by a built-in battery type.
Spescification.
| Type | ODF |
| Fluid to be measured | Liquid, gas (however, for corrosive fluid, please contact us) |
| Bore | Wafer connection, flange connection |
| 15A to 100A : JIS 5K/10K/16K/20K/30K FF/RF | |
| 1/2” to 4” : ANSI#150Lb #300Lb | |
| Maximum use pressure | Max. 2.0MPa (standard product) (for high pressure, please contact us) |
| Temperature of fluid | -10~70°C(standard product) |
| Accuracy | F.S. ±5％ |
| Installation location | can be installed outdoors <IP65> (however, please avoid direct sunlight) |
| Material of main unit | SS400,SUS304,SU316,SUS316L etc. |
| Material of plate | SUS304,SUS316,SUS316L etc. |
| Remark | *If you are worried about pressure loss, please contact us. |
| *Both horizontal piping and vertical piping can be used. | |
| *Drain for drainage can be installed. | |
| Example of use | *Cooling water line by purified water, industrial water, coolant liquid, etc. |
| *Gas line of air, nitrogen, etc. | |
| *General process line |
Orifice flange / orifice plate
Also possible to manufacture only either the orifice flange or the orifice plate
Specification
| Orifice type | Flange tap orifice, corner tap orifice (ring orifice), D.1/2D tap orifice |
| Fluid to be measured | liquid, gas |
| Bore | Wafer connection, flange connection |
| 15A to 100A JIS 5K/10K/16K/20K/30K FF/RF | |
| 1/2” to 4” ANSI#150Lb #300Lb | |
| Port for removing the differential pressure | flange connection (JIS, ANSI, JPI, etc.), screw connection (Rc, NPT, PF(G)) 15A and above |
| Differential pressure | designed and manufactured with a specified differential pressure |
| Material of main unit | SS400,SUS304,SU316,SUS316L etc. |
| Material of plate | SUS304,SUS316,SUS316L etc. |
| Material of sealing | various O-rings, various type of packing (decide after meeting) |
| Remark | *If you are worried about pressure loss, please contact us. |
| *Both horizontal piping and vertical piping can be used. | |
| *Drain for drainage can be installed. | |
| *Drain hole and ventilation hole can be installed. | |
| Example of use | *Cooling water line by purified water, industrial water, coolant liquid, etc. |
| *Gas line of air, nitrogen, etc. | |
| *General large bore process line |
Flow Sight / Flow Indicator
FS type flow sight (Transparent type sight glass)
Data sheet
| Type | FS-I: without flapper |
| FS-II: with flapper | |
| FS-B: ball contained | |
| FS-I-N: with nozzle | |
| FS-IV: for both purposes of forward and reverse | |
| FS-IV: for both purposes of forward and reverse | |
| FS-W: with wiper | |
| Bore | 3/8B to 6B flange type (special order item to 12B) |
| 3/8B to 2B screw type | |
| Withstanding pressure | 1.0MPa |
| Temperature | 80°C or less (Standard product) |
| Material | Main unit: FC250,FC450,CAC406,SS400,SUS304,SUS316 |
| Main section: C2801P,SUS304,SUS316 | |
| Remark | For FS-II and FS-IV types, outline flow rate scales can be carved. |
FS-M / FS-O type flow sight (magnet servility type)
With FS type, the index cannot be seen clearly due to oil or taint on window glass. However, with this flow sight type, the flow rate can be seen “clearly” because the index is attached on the outside of wetted surface.
Data sheet
| Type | FS-M : Magnet servility type flow sight |
| FS-O : Magnet servility type flow sight for small flow rate | |
| Bore | *FS-M |
| 3/8B to 6B Flange type (special order item to 12B) | |
| 3/8B to 2B Screw type | |
| *FS-O | |
| 3/8B to 1B Flange type (special order item to 12B) | |
| 3/8B to 1.1/2B Screw type | |
| Withstanding pressure | 1.0MPa |
| Temperature | 80°C or less (Standard product) |
| Material | Main unit: FC250、FC450、CAC406、SS400、SUS304、SUS316 |
| Main section: C2801P、SUS304、SUS316 | |
| Remark | The model of this flow sight that complies with the Fire Service Act is FS-K type. |
FS-C / FS-N flow sight type with needle valve
| Type | FS-C : As a cap is attached to the needle valve, other people cannot touch it easily once the oil quantity is set. |
| FS-N : the needle valve is a 2.0MPa type for earthquake resistant and high-accuracy fine adjustment is possible | |
| Bore | FS-C : 1/4B to 1.1/2B Screw type |
| FS-N : 1/4B to 1B Screw type | |
| Withstanding pressure | 1.0MPa |
| Temperature | 80°C or less (Standard product) |
| Material | *FS-C |
| Flow sight : Main unit FCD450, Main section C2801P | |
| Needle valve : Main unit CAC406, Main section C3604B | |
| *FS-N | |
| Flow sight : Main unit FCD450, Main section C2801P | |
| Needle valve : Main unit C3771B, Main section C3604B | |
| Remark | FS-K type comes with a protection cover made of steel complying with the Fire Service Act, and is without a window glass in order to prevent the damage of window glass. For small flow rate or when black oil is measured, please use FS-O type. |
FI Type Sight Feed Indicator
The flow direction is side to bottom and a needle valve is attached to the inlet side for adjusting the amount of lubrication.
| Type | FI-1 to FI-12 |
| Bore | FI-1 type : RC1/4×RC1/2 : Maximum flow rate 3L/min |
| FI-2 type : RC3/8×RC1/2 : Maximum flow rate 3L/min | |
| FI-3 type : RC1/2×RC1/2 : Maximum flow rate 3L/min | |
| FI-4 type : RC1/4×RC3/4 : Maximum flow rate 5L/min | |
| FI-5 type : RC3/8×RC3/4 : Maximum flow rate 5L/min | |
| FI-6 type : RC1/2×RC3/4 : Maximum flow rate 5L/min | |
| FI-7 type : RC3/4×RC3/4 : Maximum flow rate 5L/min | |
| FI-8 type : RC1/4×RC1 : Maximum flow rate 5L/min | |
| FI-9 type : RC3/8×RC1 : Maximum flow rate 5L/min | |
| FI-10 type : RC1/2×RC1 : Maximum flow rate 5L/min | |
| FI-11 type : RC3/4×RC1 : Maximum flow rate 5L/min | |
| FI-12 type : RC1×RC1 : Maximum flow rate 10L/min | |
| Withstanding pressure | 1.0MPa |
| Temperature | 80°C or less (Standard product) |
| Material | Main unit : AC-8BT6, Main section : C3604B, Needle valve : SUS304 |
| Remark | Product with a protection cover made of steel complying with the Fire Service Act is also manufactured for preventing the damage of window glass. |
MFI type multi flow sight
| Type | MFI-1 type (1-strand) to MFI-10 type (10-strand) |
| Bore | Inlet: 3/8B to 3/4B screw type |
| Outlet: 3/8B screw type | |
| Flow rate | 0 to 6L/min at 220mm2/s. 0.2MPa |
| Withstanding pressure | 0.5MPa |
| Temperature | 80°C or less (Standard product) |
| Material | Main unit : SS400,C3604B,SUS304 |
| Main section : S25C,C3604B,SUS304 | |
| Float : C3604B,SUS304 | |
| Remark | 3 to 4-point scale can be attached as an option. |
Kawaki Variable Area Flow Meter
- SR type flow meter
- KNR type flow meter
- NF type flow switch
- INF type flow meter / flow switch
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