Level Gauge for Boiler

Glass Gauges. Our product range covers: GLASS LEVEL GAUGES MAGNETIC LEVEL GAUGES CYLINDRICAL PLUG COCKS BLOW DOWN VALVES, NEEDLE VALVES FLOW INDICATORS COILS, VALVES Products are suitable for most industrial process applications and general boiler applications as well. Reflex Type Operating limits / Conditions: Process: Max. pressure: 160 bar @ 38° C ( with GR18, MT18 or SHV type valves) Max. temperature: 300° C ( max. temperature allowed by borosilicate glasses as per the DIN 7081 standard Steam: Max. pressure: 22 bar ( with GR18, MT18 or SHV type valves) Max. temperature: 216° C ( saturated steam @ 22 bar) For saturated steam values > 20 bar, a low-maintenance transparent level gauge with mica shield protection should be used ( see graph " glass loss caused by boiler water" for the estimated glass life) . Not only does the glass life depend on the temperature, it depends on the pH of the water ( the higher the value, the shorter the glass life) . Transparent Type of Glass Gauge Operating limits / Conditions: Process: Max. pressure: 160 bar @ 38° C ( with cylindrical plug cocks or globe valves) Max. temperature: 300° C ( max. temperature allowed by borosilicate glasses as per the DIN 7081 standard Steam: Max. pressure: 70 bar ( with cylindrical plug cocks or globe valves) Max. temperature: 280° C ª for use with corrosive fluids ( protective shield for the glass is required) ª for steam with an operating pressure > 20 bar, ( protective shield for the glass is required) ª if repeated thermal shocks are likely ( protective shield for the glass is required) ª for checking the interface ( level of separation between two miscible fluids) ª for checking the color of a fluid ª for dirty / oily fluids Tubular Glass Gauges Level gauges with a glass tube are an inexpensive but valid option for checking the level of non-hazardous or non-reactive fluids in pressurized tanks. An external metal protection of the glass tube is recommended. Available configurations: Borosilicate glass tube. Diameter: 16 mm; thickness: 2.5 mm. Center-to-center distance with a single tube: 3000 mm. Visible length ( without protection) : center-to-center distance – 95 mm. Visible length ( with protection) : center-to-center distance – 135 mm. Spare glass tube: center-to-center distance – 30 mm. Spare protection: center-to-center distance – 100 mm. In the event of greater center-to-center distances, additional pipes can be connected up via middle terminals for glass tube. Weld – on Glass Gauges, This type of level gauge is designed to be welded on to the tank and withstand the pressure inside it. It is made from both carbon steel and stainless steel and can take reflex and transparent glasses. Reflex glasses are recommended as they improve visibility. In order to prevent warping or distortions while the level gauge is in service, the technician tasked with installing the product must reinforce the wall of the tank where the gauge is to be welded on. For visible lengths exceeding 320 mm, we recommend welding additional gauges on different axes to avoid weakening the tank structure. During welding operations ( which must only be carried out prior to gauge assembly) , special care must be taken to avoid exposing the weld-on base to high temperatures for long periods of time as this may comprise the resistance of the gauge when in operation. Operating limits / Conditions: Process: Max. pressure: ANSI 300 rating ( A105: 51 bar; AISI 316L: 49.6 bar) @ 38° C Max. temperature: 300° C ( max. temperature allowed by borosilicate glasses as per the DIN 7081 standard On request: ANSI 600 rating ( A105: 102 bar; AISI 316L: 99.3 bar) @ 38° C