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Levelstate - Direct Water Level Gauge (DWLG)
Levelstate Colour Port Type Water Level Gauges(DWLG) provide a direct reading of the water level and are suitable for steam/water applications. Levelstate Gauges are reliance and maintenance free thereby minimising operating costs for the user.Levelstate DWLG is available in various pressure ratings, which used along with the high intensity illuminating device and accessories makes it one of the most reliable and user friendly systems available. Gauge Type 300 is available for pressure rating upto 207 bar @ 370°C.
- Various level of visibility and centre to centre distance depending on site requirement
- Stainless steel gauge body to prevent buildup of magnetic particles and welding failure (due to carbide precipitation) this ensuring long life
- High pressure block valves for thus isolation
- Enhanced safety through orifice spacer in the steam side and ball check valve in the water side
- Internal components specially coated for corrosion protection
- Glass protected by high quality mica
- Option of LED and Halogen illuminator
- Suitable for outdoor weather conditions
- Explosion proof (optional)
Colour port type direct water level gauges operate on the principle of the differences in refractive index of different mediums (steam and water) for level indication. The gauge consists of a vertically oriented metal body with a toughened glass to the front and the rear. The front and rear body surfaces are in non-parallel vertical planes. Behind the gauge body are light sources - red and green in the illuminator.
When light passes through water, it gets refracted at an angle of approximately 10o. The convex lenses converges the light sources such that for ports submerged in water, a GREEN indication is observed in the Illuminator viewing panel and for ports that are not submerged in water, a RED indication is observed.