METAGLAS® Type 99.ZIM — Pressure Cover with Integral Sight Glass
The METAGLAS® Type 99.ZIM is a pressure cover with an integral METAGLAS® sight glass,
combining vessel access and high-integrity process visibility in a single compact unit.
With wide acceptance across the European and American food, beverage, pharmaceutical, and chemical industries,
this design drives safety, hygiene, and operational uptime in one engineered package.
Design & Construction
Integrated Design: Pressure-rated cover with built-in METAGLAS® sight glass
Metal-Fused Glass: Borosilicate glass fused into a stainless-steel ring under permanent compressive stress
Cover Material: Typically stainless steel (e.g., 1.4404 / 316L) for hygienic and chemical-duty applications
Profile: Compact, low-build assembly for easy installation on vessels and process equipment
Sealing: Gasket or O-ring sealing per duty (EPDM, FKM, PTFE, etc.)
Operating Envelope: Pressure and temperature ratings supplied per size and configuration
Industry Acceptance & Typical Applications
Type 99.ZIM has proven adoption in both European and American plants where hygiene, safety,
and process control are non-negotiable.
Food & Beverage: Process vessels, mixers, fermentation tanks, blending systems
Pharmaceutical: Reactors, formulation vessels, sterile process tanks
Chemical: Batch reactors, storage vessels, inspection covers on pressure-rated equipment
Utilities: CIP tanks and ancillary process systems requiring combined access and viewing
METAGLAS® metal-fused glass gives security against total failure
Compact, easy-to-handle construction for straightforward installation
Hygienic design suitable for CIP/SIP and high-cleanliness processes
Proven track record in EU and US food, beverage, pharma, and chemical sectors
When specifying METAGLAS® Type 99.ZIM, define vessel connection details, pressure/temperature range,
material grade, and sealing requirements.
John Moncrieff Ltd will configure a pressure cover and sight glass assembly that drops straight into your
process envelope with full QA / PED documentation.
