• No clogging
Weld pad sight level indicators (glass level gages), are for applications involving high vibration, highly viscous liquids or liquids with considerable solids. These indicators are welded directly to the process vessel and because there is no standard nipple connection the possibility of clogging is eliminated. They provide optimum versatility and are used in direct reading liquid level measurement for medium pressure tanks applications in the petroleum, chemical, natural gas and general process industries.
There are 2 weld pad flat glass indicator models: the Model RMW-Reflex Medium Weld Pad and Model TMW-Transparent Medium Weld Pad. Reflex indicators (RMW) have a single vision slot in which light can enter the chamber. Above the liquid level, light is reflected and usually appears silvery. Area where liquid level is filled becomes transparent or dark/opaque depending on the medium being observed. Transparent indicators (TMW) have a vision slot on both sides of the chamber. Light enters on the opposite side of the observer so both the level of a liquid and characteristics can be seen. For observation in dark environments, illuminators are available for use with transparent indicators.