Stainless Steel tank oil level borosilicate sight glass

TheStainless Steel tank oil level borosilicate sight glass tank sight glass is made of 304 stainless steel flanged covers with a borosilicate tempered glass cylinder. It features standard sanitary tri‑clamp ports at both ends, with multiple stainless steel tie rods evenly locking the upper and lower covers. The internal bore is full‑bore with no flow restriction and no dead corners for material accumulation. Both internal and external surfaces are mirror‑polished and passivation‑treated, capable of withstanding 135℃ high‑temperature CIP/SIP in‑place cleaning and sterilization, and complying with GMP, 3A, and FDA food and pharmaceutical industry standards. The device is installed in‑line in clean conveying pipelines. The fully transparent glass cylinder provides 360° unobstructed observation, allowing complete viewing of media flow rate,liquid level, bubbles, impurities, stratification, and sedimentation.It is widely used in pharmaceutical purified water, dairy fermentation, beverage batching, and biological culture media sterile fluid pipelines, enabling on‑site inspection to quickly identify production issues such as flow interruption, clogging, and material abnormalities.

Compared with single‑side plate sight glasses:
This model provides 360° visibility around the entire glass cylinder with no blind spots, allowing complete observation even for highly turbid or viscous media. Plate sight glasses are only visible from one side, limiting the viewing angle and creating visual blind spots.

Compared with flanged long sight glasses:
The upper and lower tri‑clamp design allows disassembly without welding or bolting. Cleaning and glass cylinder replacement do not require pipeline cutting, making it suitable for sterile production lines requiring frequent disassembly and sterilization. Flanged sight glasses have higher pressure ratings but are more cumbersome to disassemble and are typically used in industrial pipelines that remain fixed for long periods.

Compared with cross‑type sight glasses:
This straight‑through design has a large bore with very low flow resistance, and high‑viscosity or powder materials are less likely to adhere or block. Cross‑type sight glasses have a larger chamber volume where viscous materials tend to accumulate, making cleaning more difficult.

Compared with carbon steel sight glasses:
The all‑stainless steel tie rods and covers resist corrosion from acids, alkalis, and high‑temperature steam, with no rust debris contaminating the media, and the glass is less prone to adhesion of fermentation materials. Carbon steel rusts easily and is prohibited for conveying clean media in food and pharmaceutical applications.

Compared with impeller sight glasses:
This sight glass has no internal impeller or blocking elements, providing a completely open flow path that does not trap fibers or agglomerated materials. Impeller sight glasses have internal impellers that can be fouled or jammed by impurities, and are only suitable for low‑impurity water lines.

1. Full‑bore visual monitoring:Media flows in through the upper tri‑clamp port and out through the lower port, passing completely through the transparent borosilicate glass cylinder. Operators can observe flow rate, color, gas content, impurities, sedimentation, and stratification from 360° around the cylinder without stopping or disassembling the pipeline.

2. Tie‑rod balanced sealing pressure structure:Multiple stainless steel tie rods and nuts evenly tighten the upper and lower covers. Food‑grade PTFE/silicone rubber gaskets inside the covers distribute stress on the glass cylinder. Suitable for PN10 atmospheric clean pipelines, resistant to leakage and glass cracking under high temperature and pressure fluctuations.

3. Sterile cleaning compatibility: The straight‑through, full‑bore flow path has no protruding edges where material can adhere. Clean water and high‑temperature steam can fully flush all media‑contact surfaces. The borosilicate tempered glass is temperature‑ and pressure‑resistant with high transparency, withstanding repeated 135℃ high‑temperature sterilization. The accompanying gaskets do not swell or adhere to viscous materials or powder residues.

4. Split quick disassembly for maintenance: Loosening the clamps at both ends removes the entire sight glass. Unscrewing the tie‑rod nuts separates the upper and lower covers, allowing removal of the glass cylinder and gaskets for cleaning adhered material or scale. One person can complete inspection and replacement without specialized tools or cutting pipelines.

5. Continuous sterile line compatibility:The full‑bore straight‑through flow path has very low pressure drop, with no material retention that could promote microbial growth. Suitable for 24/7 monitoring of automated sterile fluid production lines.