Metaglas
Introduction
Conventional sight glasses are sensitive to stress like to high pressure or mechanical shocks. Under worse conditions they may catastrophically fail without warning and cause dangerous situations as well as high expenses. If the sight glass fails during the plant is fully operational, the accident will produce major cost and safety implications.
METAGLAS® eliminates this mode of sight glass failure, helps to improve safety and avoids the expenses and inconveniences of unscheduled plant shut downs. These advantages are due to the unique „glass fused to metal“ fabrication of METAGLAS®, which provides an unsurpassed strength and integrity.
METAGLAS® is made by melting circular glass inside a metal frame. This results in the fusion of glass and metal. The glass solidifies during the cooling procedure. The different thermal expansion coefficients between glass and metal frame produces an uniform compressive force throughout the glass. This high degree of mechanical force makes METAGLAS® the strongest and most secure sightglass material.
Special Features
- Reliability against total failure due to the mechanically prestressed glass
- Extreme high pressure-, impact- and temperature resistance
- Simple installation and extreme mechanical stability
- Spectral range: Vis / Nir
Applications
METAGLAS® is the perfect technique to realize high pressure applications. The unique properties of METAGLAS® makes it as well ideally suited for sanitary applications where a perfect hygienic design is required. METAGLAS® has been subjected to the most rigorous tests by specific testing facilities as TUV, 3-A, ... in chemical-, phamaceutical-, biotech- and food industry and has subsequently been integrated into their working standards.
Technical standards
- Pressure Equipment Directive 97/23/EG 02/98 module H/H1 (DIN/EN/ISO9001)
- Materials according TUV specifications & DIN/EN standards
- Sight glass fused to metal according DIN 7079
- AD Standards W0/TRD 100
- 3-A Standard for food processing
Material and techical data
- Duplex stainless steel 1.4462
- Carbon steel 1.0570
- Hastelloy and others
- Borosilicate according to DIN 7080
- Quart
- Operating Temp.: -30°C to +280°C
- Operating Pressure: 64 bar (TUV)
- max. 1000 bar, depending on material and design
International Organization for Standardization: ISO website
Deutsches Institut fuer Normung E. V.: DIN/EN website
Technischer Ueberwachungs Verein: TUV Rheinland Group website
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