R-700 Series

Glass tube flowmeter with alarm contact

OUTLINE

R-700 series is a glass tube area flowmeter with alarm contact(s).

In addition to local flow rate indication by the position of float, reed

switch alarm contact(s) are actuated at set flow rate.

R-700 is useful and effective for prevention of flow cut-off for cooling

water system efc.

STANDARD SPECFICATION

Available sizes :

a. General version R-7

□□

65,80 and 100mm

(With float guiding road)

b. Ribbed tapered tube version R-7

□□-R

10,15,20,25,40 and 50mm

c. Wide designed tapered tube version R-7

□□-E

25,40,50,65,80 and 100mm

(With float guiding road)

Measuring fluid :

Liquids and gases

Fluid pressure :

Meter

size

10

15

20

25

40

50

65

80

100

Max. uid press. MPa

R-7

-R

1.2

1

0.8

0.8

0.6

0.6

–

–

–

R-7

–

–

–

–

–

–

0.6

0.4

0.4

R-7

-E

–

–

–

0.8

0.6

0.6

0.6

0.4

0.4

Fluid temperature

:

Max.120°C (Allowable thermal shock:80°C)

NB.1) upto 80°C for NBR gasket version

2) up to 60°C for PVC body version

It is general data, and the maximum temperature may

change by terms of use and environment.

Indication accuracy : std. ±1.5% (F.S)*

*±2.5% (F.S) for resin float version

Range ability :

10 : 1

Paint color:

Munsell 7.5BG4/1.5 (except for the SUS body)

Material :

Tapered tube : Heat-resistant glass

Float

: Standard For liquids SUS304

For gases Aluminum

Option

SUS316, SUS316L, PVC

Packing

: Standard NBR

Option

FPM, other

Body :

SS400*, SCS13, SCS14

Option

PVC

*Only R-7

□□-E types are available.

Process connection :

Standard ;

JIS10K flange

Option

ANSI, JPI, other flange

Flow direction ;

Standard Bottom→Top (R-7

□1-□)

Option

Bottom→Top side (R-7

□-2-□)

Bottom side→Top side (R-7

□3-□)

Bottom rear→Top rear (R-7

□5-□)

No.of alarm point :

Meter

size

10

15

20

25

40

50

65

80

100

R-7

–

–

–

–

–

–

1

×Low

1

×Low

1

×Low

R-7

-E

–

–

–

1

×Low

1

×Low

1

×Low

1

×Low

1

×Low

1

×Low

Possible Alarm point

R-7

-R

1

×Low + 1×High

1

×Low + 1×High

1

×Low + 1×High

1

×Low + 1×High

1

×Low + 1×High

1

×Low + 1×High

–

–

–

Alarm Contact :

1) Reed Switch(R-75

□-□)

2) Optical Switch(R-76

□-□)

Refer to separate explanation for details

TG-F2373-E01

Jun 2024

Aug 2023

2nd edition

1st edition

K

K