Flow Sight Glass

Flow sight glass / inline flow indicator — robust borosilicate tubular sight glass for visual flow checks. Datasheet, specs, and OEM mounting options.

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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.

Request quote

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:

Flow sight glass datasheet

Contact (Nanjing factory)

Lumistar Special Glass Technology Co., Ltd. — Nanjing Factory
Building 22, No. 8 Kangzheng Road, Longchi Street, Luhe District, Nanjing, Jiangsu Province, China
Phone: +86 18913035768 • Email: lumistar@188.com