Material:
Carbon steel; 1Cr18Ti9Ti; AISI316 corrosive fluid; Other material on order.

Choices:
High temperature; High pressure; Defrost level Gauge; Reflex Level Indicator; Transparent; Boiler flat type; Single color or bi-color; Sight glass Back light type and electric thermal type glass level gauge.

General introduction
TBS glass plate liquid level gauges are level measuring instrument. Upper and lower needle switches and indicating equipments are their main components. Fluid flows via switch into the indicating equipment, then the liquid level will display clearly viewed through the range of effective light transmission. And on that basis, we have developed double color glass sheet liquid level gauges, defrost glass sheet liquid level gauges and steam thermal glass sheet liquid level meters to adapt to different places and different conditions.
About sight glass plates's glass quality, only borosilicate glass is used. The connection to the process is generally made with valve heads with single or double isolation. Drain valves enable the sight glass indicator to be emptied and are fitted to the lower flange face. If necessary, a vent valve can be fitted at the top.

The Reflex Liquid Level Gauge is used to see the level of the liquid in a vessel or tank. The gauges are used as a single unit or stacked up in multiple sections to view a desired height of liquid in a vessel or tank. Standard units are furnished with 1/2" or 3/4" NPT female-end connections. The Reflex can also be furnished with other connections (socket weld, flanged, sanitary, or as specified) as well as with various types of valves upon request. Reflex liquid level gauges offer low initial cost and, if there is no reason to observe the media, easy level reading.

Model selection:
 1, TBS-A type transparent liquid level gauges
1) Measure range: 500~1700mm
2) Working temperature: ≤ 250
3) Working pressure: ≤ 4MPa
4) Meter material: Qualitative carbon steel or 1Cr18Ni9Ti
5) Transmit color: Nature color

2, TBS-B type double color glass sheet liquid level gauges
1) Measure range: 330~440mm
2) Working temperature: ≤ 250
3) Working pressure: ≤ 4MPa
4) Meter material: Qualitative
Carbon steel or 1Cr18Ni9Ti
5) Transmit color: Nature color

3, TBS-C type defrost glass sheet liquid level gauges
1) Measure ranges: 300~2000mm
2) Work temperature: -40~60
3) Working pressure: ≤ 4MPa
4) Needle switch close
Automatically pressure: ≥ 0.2MPa
5) Defrost pin height: 100mm, 150mm, 200mm, the lower the temperature the higher the pin.
6) Flange material: Qualitative carbon steel or 1Cr18Ni9Ti

4, TBS-F type reflective glass sheet liquid level gauges
1) Measure ranges: 300~2000mm
2) Work temperature: 0~250
3) Working pressure: ≤ 4MPa
4) Needle switch close automatically pressure: ≥ 0.2MPa
5) steam insulating sheath pressure: ≤ 0.6MPa
6) flange material: Qualitative carbon steel or 1Cr18Ni9Ti

5, TBS-S weld pad sight glass sheet liquid level gauge
1) Light transmission size: 18× 304mm
2) Working pressure: ≤ 1.0Mpa
3) Working temperature: ≤ 250
4) Jointing size: 80× 366mm
5) meter face material: Qualitative carbon steel or 1Cr18Ni9Ti