Flow Sight Glass
Flow sight glass / inline flow indicator — robust borosilicate tubular sight glass for visual flow checks. Datasheet, specs, and OEM mounting options.
Description
Quick summary
Flow sight glass (inline tubular flow indicator) — visual flow verification for pipelines. Available in borosilicate glass/quartz glass/sapphire glass and tempered options, standard ANSI/DIN mounts, custom lengths, and export-ready documentation
Key benefits
- Clear inline visual monitoring of flow, color and phase changes.
- Material options: Borosilicate (DIN7080), Tempered Soda-Lime (DIN8902), Quartz for high-temp.
- ANSI / DIN flange compatibility, threaded and sanitary versions available.
- Serviceable three-piece variants for quick tube replacement.
- Explosion-proof LED lighting kits and cleaning (wipe) systems optional.
Typical technical specifications
| Model | FlowSight-A (inline tubular) |
|---|---|
| Materials | Borosilicate glass (tempered) / Quartz glass/ Sapphire glass (on request) |
| Sizes (DN) | DN15–DN200 (custom lengths) |
| Pressure | PN10/16/25 (depends on glass thickness & mount) |
| Temperature range | −40°C to +280°C (higher temperature customizable) |
Note: allowable pressure/temperature depends on diameter and thickness — request P–T chart when ordering.
Applications & industries
- Process lines in chemical, petrochemical, and refining plants
- Water treatment and wastewater plants
- Food & beverage and dairy processing (sanitary variants)
- Pharmaceutical process lines and pilot plants
FAQ
Q: Do you supply datasheets and material certificates?
A: Yes — datasheets, material batches and EN/ISO test reports available on request. See the download link below.
Q: Can the sight glass be fitted with lighting?
A: Yes — explosion-proof and IP65 LED luminaires for sight glasses are available as accessories.
Download datasheet:
Contact (Nanjing factory)
Lumistar Special Glass Technology Co., Ltd. — Nanjing FactoryBuilding 22, No. 8 Kangzheng Road, Longchi Street, Luhe District, Nanjing, Jiangsu Province, China
Phone: +86 18913035768 • Email: lumistar@188.com







