Product
Red Reflex Gauge Glass
Red reflex gauge glass provides clear red-to-dark contrast for fast and reliable liquid level indication.
Technical Specifications
| Product Type | Level gauge glass |
|---|---|
| Material | Borosilicate glass |
| Standard | DIN 7081 and equivalent sizes |
| Standard Width | 30 mm and 34 mm |
- Standard and custom sizes available
- OEM marking and protective packaging available
- Compatible gaskets and accessories are available upon request.
Level Gauge Glass
Product Description
Red Reflex Gauge Glass is designed to provide clear, high-contrast liquid level indication in industrial level gauges. Its precision-molded prismatic grooves and a temperature-resistant red coating create a distinctive red-to-dark visual contrast between the gas and liquid zones, helping operators identify the liquid level quickly and reliably. It is suitable for boilers, tanks, pressure vessels and process equipment within the specified operating limits of the complete level gauge assembly.
The medium-facing surface of the glass features precision-molded prismatic grooves. In the gas or vapor zone, incident light is reflected by the grooves, producing a bright red appearance. In the liquid zone, contact between the liquid and the prismatic surface changes the optical conditions, allowing more light to pass through and making the liquid area appear dark. This red-to-dark contrast helps operators identify the liquid level clearly without a separate illuminator.
Key Features and Advantages
Red reflective surface for enhanced level visibility.
Precision-molded grooves for clear liquid and gas indication.
Durable borosilicate glass construction.
Good thermal-shock and chemical resistance.
Standard and customized sizes available.
Technical Specifications
| Parameter | Specification |
| Material | Toughened Borosilicate |
| Standard Compliance | DIN 7081； BS 3463 and JIS B 8211 available |
| Max Operating Temperature | Up to 400°C (752°F) |
| Max Pressure Resistance | Up to 400 Bar (depending on dimensions and application) |
| Saturated Steam Limit | Up to 35 Bar (without mica shield) |
| Tensile Bending Strength | ≥ 150 N/mm² (Standard) / ≥ 180 N/mm² (High Pressure) |
| Compressive Prestress | ≥ 80 N/mm² (Standard) / ≥ 100 N/mm² (High Pressure) |
| Groove Design | 90° angle V-shaped refractive grooves |
| Coating | Specialized Red Coating on the exterior surface |
Available Sizes
Red reflex gauge glass is available in a wide range of dimensions to meet different industrial requirements and can be manufactured in accordance with DIN 7081.
Length: 95–420 mm
Width: 30 mm or 34 mm
Thickness: 17 mm or 22 mm
Customization: Other sizes available upon request
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KUNYO Industrial Components Co.,Ltd.
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PHONE
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No. 555 Longxing Road, High-Tech Zone, Hengshui City, Hebei Province, China 053000
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