quick close or quick open boiler reflex glass level gauge working principle is based on the light refraction and reflection laws.
Reflex glass level gauges use glasses having the face fitted towards the chamber shaped to have prismatic grooves with section angle of 90°. When in operation, the chamber is filled with liquid in the lower zone and gases or vapors in the upper zone; the liquid level is distinguished by different brightness of the glass in the liquid and in the gas/vapor zone. The reflex level gauges do not need a specific illumination: the day environmental light is enough. Only during the night an artificial light must be provided.
The 90 degree Quick open/close type glass plate level gauge is composed of two quick opening valves, intermediate indicating device, etc. The handle is rotated 90 degrees to quickly control the opening and closing of the valve.open the valve, and the medium flows into the middle indicating device through the valve, so that the liquid level can be clearly reflected through the glass plate within the effective transmittance range of the glass plate level gauge.
Applications
quick close or quick open boiler reflex glass level gauge can be used in most of the cases and offer great advantages in terms of: low initial cost, low operating cost, easy level reading.
Features:
1. They do not need electrical power to operate. This can be a great advantage in the case of a power outage.
2. Simple to install – no calibration is necessary.
3. Can be used as a reference to check, or calibrate, other level technologies.
4. Pressure rating from vacuum to 4Mpa.
5. Temperature rating from -20℃ to 450℃
7. Not affected by the chemical or electrical properties of the process liquid.
8. Specific gravity, dielectric, conductivity, surface turbulence, vapor, foam, etc. no longer needs to be considered.
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Model
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TBS-F
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TBS-A
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TBS-HR
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TBS-HT
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RFL-40C
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Type
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Reflex type
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Transparent type
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High pressure reflex type
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High pressure Transparent type
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90 degree Quick open/close type
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C-C
(mm)
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300-3600
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285-2590
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Visible Length
(mm)
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95-3360
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141-2433
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Level Gauge Material
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CS、SS304、SS316L、Ti、etc
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Cast steel
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Glass Material
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Borosilicate; Alumina-silicate
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Gasket Type
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Graphite composite gasket; non-Asbestos gasket; Mica seal components
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Working temperature
℃
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≤450℃
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Working pressure
Bar
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40 (Groove glass)
100 (Plate glass)
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100 (Plate glass)
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40 (Groove glass)
160 (Plate glass)
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160 (Plate glass)
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40 (Groove glass)
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Advantages of U-IDEAL Reflex Glass Plate Level Gauge
1. Ultra-Clear, Long-Distance Readable Visual Effect
- Gas/vapor area reflects light fully and appears bright silvery white; liquid area refracts light inward and turns dark black. The liquid-gas boundary is sharp and distinct without blurring.
- No backlight required under normal ambient light; operators can read the liquid level clearly from dozens of meters away, suitable for patrol inspection in large boiler rooms and tank farms.
- Stable display even under slight liquid turbulence, avoiding misjudgment caused by foaming clean media such as boiler feedwater and condensed water.
2. Single-Sided Glass Design, Low Procurement & Maintenance Cost
- Only one piece of reflex glass is installed on the front side, different from transparent type with double glass panels. Lower initial purchase price and fewer spare glass parts to stock.
- Simplified sealing structure with only one layer of gasket between glass and gauge body; fewer vulnerable sealing components, greatly cutting daily operating cost.
- Quick glass replacement without dismounting double-sided pressing plates, shortening equipment downtime during maintenance.
3. Premium Borosilicate Glass, Excellent Thermal Shock Resistance
- Resists rapid temperature alternation during boiler startup, shutdown and flushing; not easy to crack from cold and hot impact compared with ordinary domestic reflex glass.
- Uniform precision prism grooves, long-term use will not fail light reflection due to surface wear, maintaining consistent reading effect throughout service life.
4. Compact & Reliable Metal Body, Wide Pressure Matching Range
- Gauge body optional with carbon steel / stainless steel, standard pressure grades PN16, PN40, ANSI 150lb, covering most industrial low & medium pressure storage tanks, heating boilers and heat exchange equipmentValftek.
- Integrated integrated cock valve structure (shut-off valve + drain vent valve) as standard configuration; the gauge can be isolated and flushed independently without stopping the main equipment.
- Optional built-in anti-break self-sealing steel ball: if glass ruptures accidentally, medium pressure will instantly block the channel to prevent high-temperature medium leakage and scald accidents.
5. Simple Structure, Low Failure Rate & Easy Operation
- Single-side observation window reduces internal dead zones, less sediment and scale accumulation compared with double-sided transparent gauges, extending cleaning cycles.
- The cock plug rotates smoothly with small operating torque; flushing and isolation operations are labor-saving for operators.
- Standard DN25 flange connection, multiple center distance specifications (235mm–2590mm), compatible with most domestic boiler drum mounting dimensions, strong interchangeability.
6. Mature Brand Technology & Stable Global Application
- Strict factory calibration for each glass plate, uniform optical performance, no batch difference of reading contrast.
- Complete standardized spare parts supply globally, convenient for after-sales replacement and maintenance.