A low pressure armored reflex flat glass liquid level gauge with a simple stacked construction that provides up to 125⅝” (3191 mm) visibility and meets ASME Section 1
Series 4200 gauges are suitable for level indication in boiler drums, feedwater heaters and other pressurized/unpressurized vessels, including aerators, for pressures up to 350 psig (24 bar) at saturation temperature with Belleville washers.