The Weldable sight Glasses with neck by Iniflu is designed to provide a clear and reliable view of internal processes within industrial tanks and vessels. This sight glass is built for durability and efficiency, making it an essential component for industries requiring real-time monitoring of liquid levels, temperatures, and other critical factors.
Iniflu’s weldable sight glass is ideal for use in various industries, including chemical processing, oil and gas, pharmaceuticals, food and beverage, among others. It enables continuous process observation where safety and precision are paramount.
Weld Neck Sight Glass for Tanks – Advantages
Easy Installation: The ZW30 is designed for quick and straightforward installation, reducing downtime and labor costs during setup. Its user-friendly design ensures even complex installations can be completed efficiently.
Aesthetic Design: Screws are positioned on the top flange, giving the ZW30 a clean and professional appearance. This makes it an excellent choice for installations where visual appeal is important.
Customizable Options: While the ZW30 comes in standard sizes, it offers customizable options to meet specific project requirements, including adjustments to material thickness, glass type, and gasket materials.
Cost-Effective Solution: The ZW30 provides a reliable and durable sight glass solution at a competitive price, making it an excellent choice for industries looking to balance performance with affordability.
Durable Construction: Built with high-quality materials such as carbon steel or stainless steel, the ZW30 resists corrosion and wear, ensuring long-term performance even in challenging environments.
Versatility: Suitable for a wide range of industrial applications, from chemical processing to food and beverage production, the ZW30 can adapt to diverse conditions and operational requirements.
LED Lighting: For installations in dark environments, the ZW30 can be equipped with optional LED lighting, enhancing visibility and safety. The light is protected by a polycarbonate layer to prevent damage from potential explosions inside the tank.
Tank Weld Sight Glasses – Available Parts and Materials

Item | Part name | Material options |
---|---|---|
1 | Bolts | Stainless Steel 316L Stainless Steel 304 |
2 | Cover Flange | Stainless Steel 316L Stainless Steel 304 Carbon Steel w/ anti-corrosion coating |
3 | Gaskets *(max temp) | Non Asbestos (200°C) Exp Graphite (450°C) Graph/Kevlar (450°C) FKM (260°C) PTFE (260°C) EPDM (140°C) |
4 | Sight Glass (max temp) | DIN7080 Tempered Borosilicate (280°C) DIN8902 Tempered Soda Lime (150°C) Quartz, Min. 95% Fused Silica (1450°C) |
5 | Weld Pad | Stainless Steel 316L Stainless Steel 304 Carbon Steel w/ anti-corrosion coating |

Technical Information
Tank Weld Sight Glasses – Details | |||
---|---|---|---|
ID | A (Visible Diam) | B (Total Diam) | C (Total thickness) |
3″ | 3″ (76.20 mm) | 5” (127.00 mm) | 3.5” (88.90 mm) |
4″ | 4″ (101.6 mm) | 6” (152.40 mm) | 3.5” (88.90 mm) |
5″ | 5″ (127.00 mm) | 7.5” (190.50 mm) | 4” (101.60 mm) |
6″ | 6″ (152.40 mm) | 9” (228.60 mm) | 4.5” (114.30 mm) |
7″ | 7″ (177.80 mm) | 10” (254.00 mm) | 5” (127.00 mm) |
8″ | 8” (203.20 mm) | 11” ( 279.40 mm) | 5” (127.00 mm) |
9″ | 9” (228.60 mm) | 12” (304.80 mm) | 6” (152.40 mm) |
At Iniflu, we value open and effective communication. If you have any questions or need additional information about our products and services, feel free to contact us. We are here to assist you and address your needs.