K Series Sight Glass｜18. Sight Glasses｜Flow Measurement｜Products

Basic Code	K-200	K-400	K-500
Type	Flapper Magnetic coupling Pointer indication	Flapper	Direct see through
External view
Measuring fluid	Liquids (Not suitable for liquid with solids)	Liquids	Liquids
Flow range	Max. 200 to 300m³/h(Water) Min. 1 to 15m³/h(Water)	Max. 100 to 150m³/h(Water) Min. 0.3 to 3m³/h(Water)
Fluid pressure	Max. 0.5MPa 65A or larger Max. 0.7MPa 50A or smaller	Max. 0.5MPa 65A or larger Max. 0.7MPa 65A to 150A
Fluid temperature	Max. 80°C for NBR Gasket Max.120°C for FPM Gasket	Max. 80°C for NBR Gasket Max.120°C for FPM Gasket Max.150°C for PTFE Gasket	Max. 80°C for NBR Gasket Max.120°C for FPM Gasket Max.150°C for PTFE Gasket Max.110°C for Glass Lined Material
Process connection	20A to 300A JIS10K Flange (Option: JIS5K, ANSI Class flange)	15A to 150A JIS10K Flange (Option: JIS5K, ANSI Class flange) RC1/2, 3/4, 1 Screws	15A to 150A JIS10K Flange (Option: JIS5K, ANSI Class flange) RC1/2, 3/4, 1 Screws
Standard material	Body: FC200, SCS13, SCS14 Nozzle: SUS304, SUS316 Shaft: SUS304, SUS316 Flapper: SUS304, SUS316 Window: Glass O ring: NBR(FPM)	Body: FC200, SCS13, SCS14 Nozzle: SUS304, SUS316 Shaft: SUS304, SUS316 Flapper: SUS304, SUS316 Window: Glass O ring: NBR(FPM)	Body: FC200, SCS13, SCS14 Glass holder: SS400, SUS316 Shaft: SUS304, SUS316 Flapper: SUS304, SUS316 Window: Temperd Glass O ring: NBR(FPM, PTFE)
Option	---	Scale plate	Glass lined

Basic
Code

K-200

K-400

K-500

Type

Flapper
Magnetic coupling
Pointer indication

Flapper

Direct see through

External
view

Measuring
fluid

Liquids
(Not suitable for liquid with solids)

Liquids

Flow
range

Max. 200 to 300m³/h(Water)
Min. 1 to 15m³/h(Water)

Max. 100 to 150m³/h(Water)
Min. 0.3 to 3m³/h(Water)

Fluid
pressure

Max. 0.5MPa 65A or larger
Max. 0.7MPa 50A or smaller

Max. 0.5MPa 65A or larger
Max. 0.7MPa 65A to 150A

Fluid
temperature

Max. 80°C
for NBR Gasket

Max.120°C
for FPM Gasket

Max. 80°C
for NBR Gasket

Max.120°C
for FPM Gasket

Max.150°C
for PTFE Gasket

Max. 80°C
for NBR Gasket

Max.120°C
for FPM Gasket

Max.150°C
for PTFE Gasket

Max.110°C
for Glass
Lined Material

Process
connection

20A to 300A JIS10K Flange
(Option: JIS5K, ANSI Class flange)

15A to 150A JIS10K Flange
(Option: JIS5K, ANSI Class flange)
RC1/2, 3/4, 1 Screws

Standard
material

Body:
FC200, SCS13, SCS14

Nozzle:
SUS304, SUS316

Shaft:
SUS304, SUS316

Flapper:
SUS304, SUS316

Window:
Glass

O ring:
NBR(FPM)

Body:
FC200, SCS13, SCS14

Glass holder:

SS400, SUS316

Shaft:
SUS304, SUS316

Flapper:
SUS304, SUS316

Window:
Temperd Glass

O ring:
NBR(FPM, PTFE)

Option

---

Scale plate

Glass lined

Basic Code	K-600	K-740
Type	Vertical type, direct indication, Lantern type	Flapper, Magnetic coupling, Pointer indication, Alarm contact
External view
Measuring fluid	Liquids	Liquids (Not suitable for liquid with solids)
Flow range	---	Max. 200 to 300m³/h(Water) Max. 0.6 to 2m³/h(Water)
Fluid pressure	Max. 0.4MPa 65A to 125A Max. 0.5MPa 40A and 50A Max. 0.7MPa 25A or smaller	Max. 0.5MPa 65A to 300A Max. 0.7MPa 50A or smaller
Fluid temperature	Max. 80°C for NBR Gasket Max.120°C for FPM Gasket	Max. 80°C for NBR Gasket Max.100°C for FPM Gasket
Process connection	15A to 125A JIS10K Flange (Option: JIS5K, ANSI Class flange)	15A to 300A JIS10K Flange (Option: JIS5K, ANSI Class flange)
Standard material	Body: SS400/GP,SUS304,SUS316 Flange: SS400, SUS304, SUS316 Sight glass: Heat-resistant glass Gasket: NBR(FPM)	Body: FC200, SCS13, SCS14 Nozzle: SUS304, SUS316 Shaft: SUS304, SUS316 Flapper: SUS304, SUS316 Window: Glass O ring: NBR(FPM)
Option	---	Alarm contact: Microswitch(SPDT) Intrinsiclly safe: Ex ia llC T6 Safety relay(EB3C) to be separately installed

Basic Code

K-600

K-740

Type

Vertical type, direct indication, Lantern type

Flapper, Magnetic coupling, Pointer indication, Alarm contact

External
view