R-700 Series Glass tube flowmeter with alarm contact

TG-F2373-E01

2

TOKYO KEISO CO., LTD.

MODEL CODE

R- 7

Type of contact

Flow direciton

Type of tapered tube

Description

Reed switch

Optical switch

Bottom

Top

Bottom

Top side

Bottom side

Top side

Bottom rear

Top rear

General purpose

Rib guided

Wide designed

5

6

1

2

3

5

- R

- E

Model code

FLOW RATE

1) For Liquid measurement

10

15

20

25

40

B

A

50

65

80

100

–

–

–

–

–

–

9 to 12

21

50

Press Loss

(kPa)

–

–

–

–

–

–

5

9

19

0.065 to

0.1

0.4

1

1.65

2.5

4.3

6.7

–

–

–

Press Loss

(kPa)

2.5

2.5

3.5

5

4

4

4

–

–

–

–

–

–

3 to 6.5

15

25

40

55

80

Press Loss

(kPa)

–

–

–

12

10

12

18

18

15

Meter

size

Flow rate

R-7

General type

R-7

-R

Rib guided

R-7

-E

Wide designed

Water

m3/h

Water

m3/h

Water

m3/h

General type (R-7

□□) and Wide designed type (R-7□□-E) are suitable

only for Water or water equivalent liquid having 1.0 mPa·s viscosity.

Above table shows maximum possible full scale for different meter sizes

with stainless steel floats.

The figures are indicated by flow rate of Water having Density of 1.0g/cm3

and viscosity of 1.0 mPa·s In case actual operating condition is different

from this, a conversion calculation is required. Consult factory for details.

2) For Gas measurement

15

20

25

40

B

A

50

2

~7.5

17

28

39

85

130

Press. Loss

(kPa)

3.5

2.5

2.5

3.5

3

3

Flow rate

R-7

-R

(Ribbed tapered tube version)

Meter

size

Air

m3/h (nor)

Ribbed tapered tube version(R-7

□□-R) is recommended

for gas measurement. Available size is 15 to 50

(Density 1.293kg/m3(nor) ,0°C,1atm). In case the fluid is different

from air, and / or operating condition is not under Normal condition,

a conversion calculation is required. Consult factory for details.

ACCEPTABLE CONNECTION FLANGE SIZES

Possible connection flange sizes against selected meter size are

shown in the following tables.

1)For R-7

□□ (General type)

2)For R-7

□□-E

and R-7

□□-R (Ribbed

(Wide designed type)

tapered tube type)

Body

material

SCS14

Connection ange size

(against meter size)

Body

material

SS400/SGP

SCS13,SCS14

PVC

Connection ange size

(against meter size)

–1

±0

+1

–1

±0

+1

STANDARD GRADUATION

The follwing 17 different standard graduations are ready to choose.

Fix your full scale to meet the availability.

Graduation examples are for R-7

□□ and R-7□□-R,

They may slightly differ for R-7

□□-E

Above table shows maximum possible full scale for different meter

sizes with aluminum float.

The figures are indicated by flow rate of Air under Normal condition

10

8

6

4

2

1

12

10

8

6

4

2

1.2

14

12

10

8

6

4

2

1.4

15

10

5

1.5

16

12

4

8

18

15

5

1.8

10

20

15

5

2

10

25

20

15

10

5

2.5

30

20

10

3

35

3.5

30

20

10

40

30

20

10

4

45

40

30

20

10

4.5

1.6

50

40

30

20

10

5

60

50

40

30

20

6

10

70

60

40

7

20

80

40

8

90

40

20

9

60

80

60

20

1–10

1.2–12

1.4–14

1.5–15

1.6–16

1.8–18

2–20

2.5–25

3–30

3.5–35

4–40

4.5–45

5–50

6–60

7–70

8–80

9–90