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Direct Vision-Type Water (Liquid) Level Gauge

As its name implies, the direct vision-type liquid level gauge is a device that allows operators to confirm the remaining liquid level in an industrial plant-related tank, etc., directly with their own eyes.

For around half a century we have been manufacturing water / liquid level gauges under the OBK brand, Our water level gauge is used not only for tanks but also for power generation-use boilers, and supports both low pressure and high pressure (21MPa) applications.

We have an excellent delivery record for both domestic and overseas sales of this product (domestic market share: approx. 50%).

For tank-use, we supply tubular liquid level gauges in large numbers. We also utilize an extensive lineup of materials including SUS, PVC and lining for valves in order to ensure that it is well-matched to the customer's using environment.

For power generation boiler-use, we prepare water level gauges enough to resist high pressure (~21MPa).

<Power Generating-use Boiler Water Level Gauges>

  • Reflection type (1.0MPa ~ 2.0MPa)
  • Transparent type (1.0MPa ~ 8.0MPa)
  • Bicolor type (1.0MPa ~ 8.0MPa)
  • Bicolor type (multi-port type) (1.0MPa ~ 21.0MPa)

Direct Vision-Type Water (Liquid) Level Gauge

Flow Sight (Sight Glass)

By installing this device in a piping route, it is possible for the operator to confirm the flow of liquid though the pipe directly with their own eyes.

There is a type with a flapper and ball mounted inside to make it easier to observe the liquid flow.

This device is available in either flange type or screw-in type specifications for ease of installation according to the type of piping.

Flow Sight Type Classification<Flow Sight Type Classification>

  • Screw-in type0.5MPa-use
    Standard materials: FC, SCS
  • Flange type1.0MPa-use
    Standard materials: FC, SCS, SF
  • Pipe type1.0MPa-use
    Standard materials: STPG370, SUSTP
  • Lantern type1.0MPa-use
    Standard materials: STPG370, SUSTP
  • Welded type1.0MPa-use
    Standard materials: SS400, SUS

* For the screw-in and flange types, a flapper and ball-mounted version is available.

*The flange standards are 5k, 10k and ANSI#150-compatible.



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