176-Type Sintered Sight Glass
176-Type Sintered Sight Glass
176-Type Sintered Sight Glass

176-Type Sintered Sight Glass

Lumistar 176 sintered borosilicate sight glass — a safe, durable replacement for conventional glass. Excellent impact, pressure and temperature resistance; suitable for DIN flanges; -60°C to +300°C

Category:

Description

Lumistar 176 is a sintered borosilicate sight glass designed as a safe, robust replacement for conventional glass in sight ports and weld-neck flange assemblies. It provides excellent resistance to impact, pressure and thermal shock while minimising the risk of sudden glass failure.

Why choose a sintered sight glass?

  • Reliability against total failure — the possibility of sudden unexpected rupture is totally excluded.

  • High resistance to bending and over-tightening; simple and fast installation with no risk of breakage.

  • Extreme resistance to impact, pressure and temperature.

  • Re-usable in the same or other applications — conventional glass is not.

  • Wide acceptance in the European & American chemical industries.

Product at a glance

  • Standard: 176-type mounting and dimensions (factory compatible with Type-176 housings).
  • Window: Sintered borosilicate glass (porous structure), custom porosity on request.
  • Body: Stainless steel 304 / 316 housings; special alloys on request.
  • Mounting: Flanged, weld-on or cartridge styles.

Typical specifications

 

Sintered Sight Glass — Specifications

Type 176-type sintered sight glass
Window material Sintered borosilicate glass
Body material Stainless steel 304 / 316
Temperature -60°C to +300°C
Pressure
  • Up to 40 bars
  • Higher pressures possible
Material certificates Certificate of conformity to EN 10204-3.1B or 3.1A
Manufactured and tested in conformance with
  • Pressure Equipment Directive 97/23/EG 02/98，
    Module H/H1 (DIN/EN/so 9001
  • AD Standards WO/TRD 100
  • Factory Mutual Approval
  • Sight glass fused to metal conforming to DIN 7079
  • Borosilicate glass to DIN 7080
Ring materials
  • Carbon Steel (1.0570)
  • Duplex Stainless Steel (1.4462)
  • Hastelloy C-22 (2.4602)
  • Hastelloy C-4 (2.4610)
  • Other materials available

Need a custom porosity or diameter? Contact us for a quote.

Features & benefits

  • Fail-safe performance — sintered structure prevents catastrophic failure; sudden unexpected rupture is effectively excluded.

  • High mechanical resistance — excellent resistance to bending, over-tightening and impact.

  • Thermal robustness — withstands wide temperature swings and bakeout cycles.

  • Reusable & reliable — can be used as a direct replacement for conventional glass; no increased risk of breakage during installation.

  • Wide industry acceptance — adopted across European and American chemical and process industries.

Applications

  • Circular sight ports to DIN 28121 and compatible assemblies

  • Chemical process vessels and piping where glass rupture must be prevented

  • High-pressure reactors, filtration and mixing vessels

  • Vacuum & pressure coating systems, pilot plants and laboratory vessels

  • Any installation requiring a durable, reusable sight window instead of conventional flat glass

Downloads

176-Type Sintered Sight Glass — Datasheet (PDF):176 sintered sight glass

Related products