METAGLAS® Type 11.SW – Metal-Fused Sight Glass Flange with Wiper
The METAGLAS® Type 11.SW combines precision-fused glass and steel construction with an integrated
wiper mechanism for optimal visibility in demanding process environments.
This assembly provides crystal-clear observation even in applications involving vapour, condensation, or particulate media.
Design & Construction
Type: Metal-fused sight glass flange with manual wiper
Fitting Dimensions: According to DIN 2501
Mounting Compatibility: Suitable for base flanges or weld-neck flanges with flat sealing surface, without sealing ledge
Wiper System: Externally operated shaft and seal arrangement for on-line cleaning of the view area
Pressure / Temperature Capability: Dependant on size and material selection (available on request)
Applications
Process vessels and reactors requiring continuous observation
Fermentation and biotechnology systems with condensation buildup
Chemical processing equipment with opaque or viscous media
Pharmaceutical and food-grade installations requiring optical clarity and sanitary design
Key Advantages:
Direct mount to standard DIN flanges — no adaptor required
Integrated wiper maintains visibility during operation
High mechanical and thermal shock resistance due to metal-glass fusion
Leak-proof construction eliminates the need for separate gaskets or sealing rings
Ideal for retrofit or new build applications across multiple industries
John Moncrieff Ltd supplies certified METAGLAS® Type 11.SW assemblies
for both industrial and sanitary process environments — engineered for reliability,
validated for pressure safety, and compliant with DIN and PED requirements.
