XG49W type single color quartz tube water level gauge for boilersDetailed product description：

The XG49W boiler monochrome quartz tube water level gauge is mainly used for liquid level display on various pressure vessels and industrial steam boilers. Due to the use of specially reinforced glass tubes, it is safer, more reliable, displays more clearly, and easier to maintain and repair than the original X49H boiler flat water level gauge. Its appearance has been significantly reduced in both volume and weight compared to before, and the overall feel of the instrument panel is compact and innovative. It is a new generation of liquid level matching instrument designed specifically for the boiler industry.

structural principle
The XG49W boiler single color quartz tube water level gauge is equipped with flanges at both ends connected to the flanges of the boiler or container. The actual height of the liquid and gas inside the container can be directly observed through the water level gauge.
Characteristic comparison: (XG49W type and B49X type)

Model number	XG49W	X49H
Appearance	Compact and innovative	Rough and bulky
Installation center distance (mm)	300~2000	300~500
Visual height	100~1800	100~300
Weight to volume ratio	1.0 times	1.5 times
work pressure	≤6.4MPa	≤4.0MPa
Operating Temperature	-10~450℃	-10~250℃
Repair, assembly, and disassembly	convenient	More complex
Additional device	Lighting, frost protection, steam jacket	Illumination

Main technical indicators
Measurement range (installation center distance): 300, 350, 440, 500 ······· 2000mm
Visual height: 100, 150, 240, 300 ········ 1800mm
Working pressure of the tested medium: 1.6, 2.5, 4.0, 6.4 MPa
Working temperature: -10 ℃~+450 ℃
Heat tracing steam pressure: ≤ 0.6MPa
Steam jacket size: G1/2 "external thread
Observation distance: 15M (natural light) 50M (with lighting)
Lighting: 36V AC 6W
Interface flange: Adopting the latest HG20592~20635-97 flange standard issued by the Ministry of Chemical Industry in 1997. The flange diameter is DN20, DN25. If the user needs to use other standards (such as GB, ANSI, DIN, etc.), it can be designed according to the user's needs.

Instructions for Use
When using a water level gauge, the valve should be slowly opened to allow liquid to enter, and then the special glass tube should be preheated for 20-30 minutes. After reaching a certain temperature, the valves at both ends can be fully opened to allow water or other media to enter. During use, it is required to regularly discharge pollutants to avoid blockage of channels due to erosion and false water levels.
When the quartz tube is accidentally damaged, using the upper and lower handles of the instrument to turn the plugs of the upper and lower plugs 90 degrees can prevent the medium in the container from continuing to flow out. At this time, the damaged parts can be replaced.
Transportation, storage, installation, use, and maintenance
The packaged water level gauge can be transported by conventional transportation vehicles, but it should be avoided from severe vibration and direct erosion by rain and snow.
The water level gauge should be placed in a dry and ventilated room with a temperature of 0-40 ℃ and a relative humidity of no more than 80%. The outdoor air should not contain any corrosive medium to the instrument.
The water level gauge must be installed vertically, with a vertical deviation of less than 3 °.
A shut-off valve should be installed between the water level gauge and the container to isolate it from the medium during cleaning and maintenance.
According to the condition of the medium, the main body tube should be cleaned regularly to remove debris inside the tube.

Ordering Instructions
Model, specification, measurement range (center distance L), working pressure, working temperature, material requirements, flange standard