Sanitary Stainless Steel Hex Flange Sight Glass
Product Description
Product Overview
Tailored for industries demanding the highest purity, such as food processing, pharmaceuticals, and biotechnology, the Sanitary Stainless Steel Hex Flange Sight Glass offers an unmatched solution for on-the-spot visual monitoring of fluid dynamics, liquid levels, and reaction processes. This ingeniously designed tool comes with a hygienic stainless steel body, a crystal-clear pressure-resistant window, and a hex flange sealing system. It guarantees optimal performance and sanitation, effortlessly meeting the strict sterile production standards.
Key Features
1. Material & Hygiene Certifications
- Constructed using premium SUS 304/316L stainless steel, our product meets FDA, EHEDG, and 3-A Sanitary Standards. It boasts a gleaming mirror finish (Ra ≤0.6μm) or electropolished surface, effectively inhibiting microbial growth.
- The window is crafted from either tempered borosilicate or quartz glass, ensuring exceptional transparency and resilience against impacts. It endures temperatures up to 200°C while aligning with ISO 4802 food-safe glass standards.
2. Hygienic Structural Design
- The hex flange connection is ingeniously compact, featuring internal hex bolts that firmly secure the assembly. Its flat sealing surfaces, combined with silicone, EPDM, or PTFE gaskets, promise leak-free performance and effortless cleaning.
- Featuring a dead space-free design, it integrates smoothly with pipeline walls, eradicating crevices and preventing residues. Ready for CIP/SIP cleaning and sterilization.
3. Performance Specifications
- Built to withstand pressures from -0.1 to 1.0 MPa, customizable up to 1.6 MPa to suit high-pressure needs.
- Operational across a wide temperature range from -20°C to +150°C, with short-term window tolerance reaching up to +250°C.
- Offers broad media compatibility, accommodating water, steam, acids, alkalis, dairy, pharmaceuticals, and more. For corrosive environments, SUS 316L is advised.
4. Connections & Dimensions
- Compatible with DIN, SMS, ISO, and 3-A sanitary flange standards. Sizes range from DN25 to DN150 (1" to 6").
- Observation windows are available in standard diameters from φ50mm to φ150mm, with options for custom sizing.
Applications
- Food & Beverage: Ideal for fermentation tank level monitoring and transparent pipeline inspections on filling lines.
- Biopharmaceuticals: Facilitates process visualization in reactors and status checks in purified water systems.
- Cosmetics: Enables monitoring of high-viscosity raw material transfer processes.
Packaging & Warranty
- Packaged with precision, featuring a protective film over the window, vacuum-sealed in shock-proof, foam-lined cases. Comes with installation guides and certification documents.
- Enjoy peace of mind with an 18-month warranty, plus the option for explosion-proof test reports and bespoke sizing solutions.
Product Parameters
Steel Parts |
SS304;SS316L |
The material of glass |
silicon boride glass |
Sealings |
EPDM or NBR or PTFE |
Working temperature |
-20~+135'C(when the sealing isEPDM |
Detailed Photos






Packaging & Shipping

Certifications

About US





FAQ
Q:How do you pack?
A:Plastic bags-------(Paper boxes)-------Cartons-------Plywood cases
Q:How long is the quality guarantee period?
A:We supply 6 to 12 months for quality guarantee according to customers' using frequency.
Q:How can you guarantee the quality of products?
A:First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every flange or fitting we sell is qualified.
Q:How can I check your factory situation while it's difficult for me to come to China.
A:We have photos and videos on our website, It shows every step of the manufacturing.
Alternatively, I can take videos or photos of our factory and send them to you.
Q:What is your lead time?
A:It's around 15 days normally. If we have the products in stock, it will be about 5days.
Q:Can you print our Logo on the valves/Fittings?
A:Yes, we can totally produce products according to your this kind special request, even manufacture it based on your drawing
Q:Are samples available to be sent with free?
A:It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.
Q:Do you have a minimum quantity of the products?
A:No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.
Q:Where are the main markets for your products?
A:We hope to make business with companies from all over the world. And for now, our flanges and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.
Q:Are you a factory or trading company?
A:We are a factory specialized in manufacturing flange and fitting over 10 years.