Borosilicate Gauge Glass is manufactured from high borosilicate glass 3.3, offering excellent heat resistance, thermal shock resistance, and optical clarity for industrial liquid level monitoring. With a maximum working temperature of 550℃ and superior chemical stability, it is widely used in boiler level indicators, pressure vessels, and industrial sight glass systems.
Borosilicate Gauge Glass is a high-performance industrial glass product manufactured from high borosilicate glass 3.3, specially designed for liquid level observation systems, boiler level indicators, and industrial sight glass applications. With excellent thermal stability, chemical resistance, and optical transparency, it provides reliable visibility and long-term performance in demanding operating environments.
Compared with ordinary glass, borosilicate gauge glass features a lower coefficient of thermal expansion, stronger resistance to thermal shock, and better durability under high temperature conditions. It can withstand working temperatures up to 550℃, making it suitable for equipment that requires continuous operation under heat, pressure, and temperature fluctuations.
The excellent light transmission of this gauge glass ensures clear observation of liquid levels, while its stable physical and chemical properties help maintain reliable performance in industrial processes. It is widely used in boiler systems, pressure vessels, petrochemical equipment, power generation facilities, marine equipment, and other industrial measurement applications.
Qingdao Vatti Glass provides customized Borosilicate Gauge Glass solutions with flexible sizes, thicknesses, and processing options to meet different equipment requirements. As a professional glass manufacturer, we focus on stable quality, precise processing, and reliable supply capability for global industrial customers.
Reflex Borosilicate Gauge Glass
Reflex Borosilicate Gauge Glass features a specially designed grooved surface structure that improves liquid level visibility through optical reflection. The groove design creates a clear contrast between liquid and gas areas, allowing operators to quickly identify liquid levels in boilers and industrial equipment.
It is commonly used in steam boilers, pressure vessels, and high-temperature liquid monitoring systems where clear level indication is required.
Transparent Borosilicate Gauge Glass
Transparent Borosilicate Gauge Glass provides direct visual observation through a smooth glass surface. It is suitable for applications where operators need to observe liquid color, flow condition, or medium characteristics.
This type is widely used in industrial tanks, chemical equipment, and process monitoring systems.
Excellent High Temperature Resistance
Manufactured from high borosilicate glass 3.3, the gauge glass provides stable performance at temperatures up to 550℃, making it suitable for high-temperature industrial equipment.
Superior Thermal Shock Resistance
With a low thermal expansion coefficient of 3.3±0.1×10⁻⁶, the glass can withstand rapid temperature changes and reduce the risk of thermal stress damage.
Clear Optical Visibility
With light transmission up to 92%, Borosilicate Gauge Glass provides excellent transparency for accurate liquid level monitoring.
Chemical Corrosion Resistance
The high borosilicate material offers excellent chemical stability and resistance against various industrial media.
Chemical Corrosion Resistance
The high borosilicate material offers excellent chemical stability and resistance against various industrial media.
Customized Processing
Vatti Glass supports customized dimensions, thicknesses, shapes, and processing requirements according to customer applications.
Item | Specification |
Product Name | Borosilicate Gauge Glass |
Material | High Borosilicate Glass 3.3 |
Application Type | Level Gauge Glass / Sight Glass |
Size | Customized |
Thickness | 2-30mm |
Maximum Working Temperature | ≤550℃ |
Thermal Expansion Coefficient | 3.3±0.1×10⁻⁶ (20-300℃) |
Softening Point | 820±10℃ |
Thermal Shock Resistance | ≥125K |
Light Transmission | 92% (Thickness ≤4mm), 91% (Thickness ≥5mm) |
Refractive Index | 1.47384 |
Boiler Level Indicators
Borosilicate Gauge Glass is widely used in steam boiler water level indicators, providing clear observation performance under high temperature and pressure conditions.
Pressure Vessels
Suitable for pressure equipment requiring durable and transparent observation components.
Petrochemical Equipment
Provides reliable monitoring solutions for chemical processing systems exposed to heat and corrosive media.
Power Generation Systems
Used in thermal power equipment and auxiliary systems for liquid level inspection.
Marine Equipment
Suitable for marine boilers and shipboard liquid monitoring applications.
Customized Borosilicate Gauge Glass Solutions
Qingdao Vatti Glass provides professional manufacturing services for Borosilicate Gauge Glass according to different industrial equipment requirements. With flexible production capabilities, we can supply gauge glass products in customized sizes, thicknesses, shapes, and specifications.
Depending on application requirements, our customization options include:
· Customized dimensions and thickness
· Reflex groove design and transparent surface processing
· Edge grinding and polishing
· Shape customization
· Special processing according to equipment installation requirements
Our experienced production team ensures accurate processing and stable product quality, helping customers achieve reliable performance in various industrial applications.
Reliable Quality for Industrial Applications
Quality and reliability are essential for industrial gauge glass applications. Qingdao Vatti Glass implements strict quality management throughout the manufacturing process to ensure every Borosilicate Gauge Glass meets customer requirements.
Our quality control process includes:
Material Inspection
High borosilicate glass materials are carefully selected to ensure stable physical and chemical properties.
Dimension Inspection
Each product is inspected for thickness, size, and processing accuracy to ensure proper installation compatibility.
Optical Performance Testing
Light transmission and appearance inspection help guarantee clear visibility during operation.
Thermal Performance Testing
Thermal resistance and shock resistance are evaluated to ensure reliable operation under temperature changes.
When selecting gauge glass for industrial equipment, several factors should be considered:
Operating Temperature
Choose borosilicate gauge glass when equipment operates under high temperature conditions.
Medium Characteristics
For corrosive or chemical environments, high chemical resistance glass is recommended.
Gauge Type
Reflex gauge glass is suitable for clear liquid level indication, while transparent gauge glass is preferred when direct observation of the medium is required.
Size and Installation Requirements
Customized dimensions should match the equipment design and installation structure.
Professional Borosilicate Gauge Glass Manufacturer
Qingdao Vatti Glass Co., Ltd. is a professional glass manufacturer and supplier specializing in industrial glass solutions. With experience in producing various glass products, we provide reliable Borosilicate Gauge Glass for customers worldwide.
Professional Manufacturing Experience
We have extensive experience in producing industrial glass products, including borosilicate glass, tempered glass, laminated glass, solar glass, and other customized glass solutions.
Customized Industrial Solutions
We support customized production based on different application environments, equipment requirements, and installation conditions.
Strict Quality Management
Our strict production management and inspection procedures help ensure stable quality and consistent product performance.
Global Export Capability
With independent import and export rights, Vatti Glass products have been supplied to customers in Europe, America, Africa, and Asia markets.
Safe Packaging for Global Delivery
Borosilicate Gauge Glass requires careful protection during transportation. Vatti Glass uses suitable packaging methods to reduce the risk of damage during international shipping.
Packaging solutions include:
· Individual protective packaging
· Shock-resistant packing materials
· Export-standard cartons or wooden cases
· Customized packaging according to order requirements
What is Borosilicate Gauge Glass used for?
Borosilicate Gauge Glass is mainly used for liquid level observation in boilers, pressure vessels, industrial tanks, and process equipment. It provides clear visibility and stable performance under high temperature conditions.
What makes borosilicate gauge glass different from ordinary glass?
Borosilicate Gauge Glass has a lower thermal expansion coefficient, better thermal shock resistance, and stronger chemical stability compared with ordinary glass.
What temperature can Borosilicate Gauge Glass withstand?
Our Borosilicate Gauge Glass can withstand working temperatures up to 550℃, depending on application conditions and equipment requirements.
Can Vatti Glass provide customized gauge glass?
Yes. We provide customized sizes, thicknesses, shapes, and processing options to meet different industrial requirements.
What is the difference between reflex and transparent gauge glass?
Reflex gauge glass uses a grooved surface structure to improve liquid level visibility through light reflection, while transparent gauge glass provides direct observation through a smooth surface.
Which industries use Borosilicate Gauge Glass?
It is widely used in boiler systems, petrochemical equipment, power generation facilities, marine equipment, and industrial measurement systems.