Catalog
Reflex & Transparent Flat Gauge Glass — DIN 7081
Our Reflex and High Pressure Transparent level gauge glasses are made using tempered 3.3 borosilicate glass and are manufactured in accordance with international norm DIN7081 (which guarantees quality and reliability).These glasses are primarily used in higher pressure applications that require chemical resistance and a low thermal expansion coefficient.
Reglex Glass vs. HP Transparent Glass
Reflex level gauge glass utilizes a series of reflective prisms that reflect light in such a way that the gauge appears opaque to indicate fluid level and highly reflective above the liquid level. For more details,click here . This clear visual contrast provides an immediate and accurate indication of the fluid level in industries, such as chemical manufacturing, petroleum refining and power generation, where precise level measurement is crucial for operational safety and efficiency.

Transparent level gauge glass serves as an indispensable tool in environments where monitoring the exact level of fluids under high pressure is critical. For more details,click here . Unlike their reflex counterparts, these gauges employ two pieces of flat, transparent glass allowing operators to observe the fluid level directly. This design is particularly useful in applications where it's essential to view the characteristics of the fluid itself (such as color, clarity and the presence of any sediments or separations). This straightforward, yet effective, design makes them a key component in maintaining operational safety and efficiency by ensuring precise fluid management in even the most demanding industrial settings.

Reglex Glass vs. HP Transparent Glass
| Glass Type | 3.3 Borosilicate |
|---|---|
| Maximum short-term temperature | 560°C (1040°F) |
| Thermal shock resistance | 140 K |
| Maximum working pressure | Refer to table below |
| Acid Resistance | Class S1 (ISO 1776) |
| Alkaline Resistance | Class A2 (ISO 695) |
| B2O3 | Minimum 13% content |
| Na2O + K2O | Minimum 4.5% content |
These types of level gauge glasses, both reflex and transparent, have internationally standardized sizes. While the width and thickness of these glasses remain consistent, the length varies based on the standardized level gauge assembly dimensions.
*Also available in 30mm width. Consult a Zight Representative to learn more.
