METAGLAS® Type 77 DIN — Metal-Fused Sight Glass for Flow Indicator Fittings
The METAGLAS® Type 77 DIN is a metal-fused sight glass manufactured
according to DIN 7079 for sight glass flow indicator fittings with traction.
Built to DIN fitting dimensions, it delivers rock-solid, pressure-tight visibility for process lines
where uptime, compliance, and clarity aren’t negotiable.
Design & Construction
Standard: DIN 7079 — fitting dimensions per DIN
Use Case: For flow indicator fittings with traction (pull-up) clamping
Seal: Permanent glass-to-metal fusion with mechanical pre-stress — no separate gasket required
Integrity: High resistance to pressure cycling, vibration, and thermal shock
Envelope: Pressure/temperature per size and material spec (on request)
Applications
Sight flow indicators in chemical and petrochemical service
Steam/condensate lines requiring DIN compatibility
General industrial utilities and process monitoring
Drop-in replacement where DIN 7079 geometry is specified
Key Advantages:
Fully compliant with DIN 7079 fitting dimensions
Metal-fused construction = leak-tight, maintenance-free performance
Mechanical pre-stress for superior pressure and thermal resilience
Proven durability under cyclic loading and plant vibration
John Moncrieff Ltd supplies certified METAGLAS® Type 77 DIN units —
precision-manufactured, pressure-tested, and ready for fast deployment in DIN-standard flow indicator assemblies.
