METAGLAS® Type 99.TUC — Varivent® In-Line Sight Glass
The METAGLAS® Type 99.TUC is a metal-fused sight glass engineered for
Varivent® in-line housings and in-line flanges from GEA Tuchenhagen.
It delivers maximum optical clarity, sanitary integrity, and the proven fail-safe performance of
mechanically prestressed METAGLAS® construction — purpose-built for hygienic processing where uptime and compliance are non-negotiable.
Design & Construction
Interface: Drop-in design for Varivent® in-line housings / flanges
Body Material: Stainless steel (e.g., 1.4404 / 316L) for hygienic duty
Profile: Low build height with flush, easy-clean internal surface
Sealing: Uses the corresponding Varivent® gasket set (material per process spec)
Performance: High resistance to pressure cycling, vibration, and thermal shock
Compatibility
Varivent® in-line housings and in-line flanges (GEA Tuchenhagen)
Integration with sanitary pipelines, skids, and vessels using Varivent® modules
Pairs with CIP/SIP regimes and hygienic surface finishes
Applications
Pharma & biotech — reactors, filters, and transfer lines
Food, dairy & beverage — brewing, mixing, and filling systems
Cosmetics & fine chemicals — hygienic transfer and inspection points
Any Varivent® in-line location requiring high-integrity visual access
Key Advantages:
True Varivent® fit — no bodges, no adapters, no drama
Metal-fused glass = no gasket creep at the glass/metal interface
Flush, cleanable optics — CIP/SIP-ready
Maximum viewing with minimum build height
Built for continuous duty: pressure, vibration, thermal cycling
Specify your Varivent® size/module, media, temperature/pressure envelope, finish, and gasket material.
John Moncrieff Ltd will configure Type 99.TUC to your duty with the correct seal set and documentation (PED/QA) —
streamlined and production-ready.
