The Global Tubular Gauge Glass Market was valued at USD 151.41 Million in 2024 and is projected to reach USD 202.54 Million by 2030, growing at a Compound Annual Growth Rate (CAGR) of 4.4% during the forecast period (2024–2030). This growth is underpinned by increasing demand from power generation, chemical processing, and oil & gas sectors, alongside the accelerating adoption of advanced materials for high-temperature and high-pressure applications.

As industrial operations worldwide prioritize safety, efficiency, and process visibility, the spotlight is on the key manufacturers who are driving innovation in materials science, durability, and precision engineering. In this blog, we profile the Top 10 Companies in the Tubular Gauge Glass Industry—a mix of established glass specialists and industrial component suppliers shaping the future of fluid level monitoring.

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🔟 1. SCHOTT AG

Headquarters: Mainz, Germany
Key Offering: BOROSILICATE Glass Tubes, High-Pressure Gauge Glasses

SCHOTT is a global leader in specialty glass, providing high-performance tubular gauge glasses renowned for their thermal shock resistance and chemical durability. Their products are essential for boilers, reactors, and tanks in demanding industrial environments.

Innovation Focus:

• Development of ultra-clear, low-iron borosilicate glass

• Advanced coatings for enhanced abrasion resistance

• Custom solutions for extreme temperature and pressure conditions

Download FREE Sample Report: Tubular Gauge Glass Market – View in Detailed Research Report

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9️⃣ 2. YuanBo Engineering Co., Ltd.

Headquarters: Hebei, China
Key Offering: Standard and High-Pressure Gauge Glasses, Sight Glasses

YuanBo Engineering is a prominent manufacturer in the Asian market, supplying a wide range of gauge glasses for industrial boilers and pressure vessels. The company focuses on cost-effective solutions without compromising on quality and safety standards.

Innovation Focus:

• Expansion of product portfolio for the power generation sector

• Investment in automated manufacturing for consistency

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8️⃣ 3. Gage Glass Company

Headquarters: Burbank, California, USA
Key Offering: Custom Gauge Glasses, Reflex and Transparent Types

Gage Glass Company specializes in manufacturing precision glass products for level indication. With decades of expertise, they serve a diverse clientele, including the marine, pharmaceutical, and food processing industries, emphasizing product reliability.

Innovation Focus:

• Specialization in custom-cut and shaped gauge glasses

• Focus on meeting stringent industry-specific certifications

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7️⃣ 4. Boiler Supplies Company

Headquarters: Leeds, United Kingdom
Key Offering: Gauge Glass Assemblies, Boiler Mountings

Boiler Supplies is a key supplier in Europe, providing complete gauge glass assemblies and related components for steam boilers and hot water systems. Their strength lies in a comprehensive product range and robust distribution network.

Innovation Focus:

• Integration of gauge glasses with modern sealing technologies

• Supply chain optimization for rapid delivery across Europe

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6️⃣ 5. Clark Reliance Corporation

Headquarters: Strongsville, Ohio, USA
Key Offering: Jergoff® Gauge Glass, Aqua-Ject® Systems

Clark Reliance is a leading designer and manufacturer of fluid handling and level indication products. Their Jergoff gauge glass product line is widely recognized in the global power and industrial markets for its performance and safety features.

Innovation Focus:

• Development of self-cleaning and pressurized gauge glass systems

• Emphasis on products that reduce maintenance downtime

Download FREE Sample Report: Tubular Gauge Glass Market – View in Detailed Research Report

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5️⃣ 6. Spectraglass Ltd.

Headquarters: St. Helens, United Kingdom
Key Offering: Borosilicate Gauge Glasses, Sight Flow Indicators

Spectraglass manufactures high-quality borosilicate glass tubes and sight glasses for the process industries. The company is known for its technical expertise and ability to produce glasses that meet specific customer requirements for clarity and strength.

Innovation Focus:

• Precision engineering for tight tolerance control

• Special glasses for corrosive and high-purity applications

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4️⃣ 7. PresSure Products Company, Inc.

Headquarters: Spartanburg, South Carolina, USA
Key Offering: Gauge Glasses, Illuminators, Sight Windows

PresSure Products Company specializes in custom-engineered viewport and sight glass solutions for extreme environments. Their products are critical in industries such as aerospace, defense, and high-pressure research.

Innovation Focus:

• Expertise in multi-ply laminated glass for explosion containment

• Collaboration with clients on R&D for bespoke applications

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3️⃣ 8. American Precision Glass (APG)

Headquarters: Butner, North Carolina, USA
Key Offering: Fabricated Glass Components, Gauge Glasses

APG is a manufacturer of custom glass components, including tubular gauge glasses cut to precise lengths. They serve a broad industrial base, providing materials that withstand thermal and mechanical stress.

Innovation Focus:

• Advanced cutting and finishing techniques for leak-proof sealing

• Quick turnaround on prototype and small-batch orders

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2️⃣ 9. TG Rankin

Headquarters: Michigan City, Indiana, USA
Key Offering: Gauge Glasses, Gaskets, and Assembly Kits

TG Rankin provides a comprehensive range of gauge glass products and associated sealing components. The company is a trusted supplier for maintenance, repair, and operations (MRO) activities in North America.

Innovation Focus:

• Bundling of glasses with compatible gaskets and hardware

• Focus on inventory management for critical spare parts

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1️⃣ 10. Chem Oil Products Inc.

Headquarters: Houston, Texas, USA
Key Offering: Gauge Glasses, Refinery and Chemical Plant Supplies

Chem Oil Products is a major distributor and supplier of industrial consumables, including tubular gauge glasses, to the oil & gas and chemical sectors along the U.S. Gulf Coast. Their strategic location allows for rapid response to industry needs.

Innovation Focus:

• Supply chain partnerships with multiple glass manufacturers

• 24/7 availability for emergency replacement parts

Get Full Report Here: Tubular Gauge Glass Market – View in Detailed Research Report

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🔍 Outlook: The Future of Tubular Gauge Glass Is Smarter and More Resilient

The tubular gauge glass market is undergoing a significant evolution. While traditional borosilicate glass remains the standard, the industry is investing in advanced materials, integrated sensor technologies, and manufacturing processes that enhance longevity and safety.

📈 Key Trends Shaping the Market:

• Growing demand for glasses capable of withstanding higher pressures and thermal cycles

• Integration of gauge glasses with digital level sensors for remote monitoring

• Stringent safety regulations driving adoption of certified, high-integrity products

• Expansion of the power and chemical sectors in Asia-Pacific fueling market growth

Get Full Report Here: Tubular Gauge Glass Market – View in Detailed Research Report

The companies listed above are not only supplying essential components—they are enabling the safe and efficient operation of critical industrial infrastructure worldwide.