• Metaglas Type 177 ANSI

Metaglas Type 177 ANSI

  • Product Code: Metaglas Type 177 ANSI

METAGLAS® Type 177 ANSI – Metal-Fused Sight Glass for Flow Indicator Fittings

The METAGLAS® Type 177 ANSI is a precision-engineered metal-fused sight glass designed for flow indicator fittings with traction. Built to ANSI fitting dimensions and similar in design to DIN 7079, this unit delivers robust, pressure-resistant visibility for a wide range of industrial process applications.

By fusing the glass directly into a machined metal ring, the assembly generates permanent compressive stress within the glass, offering superior mechanical stability, thermal shock resistance, and long-term sealing integrity compared to conventional sight glass constructions.

Design & Construction

  • Type: Metal-fused sight glass for flow indicator fittings with traction
  • Standard: ANSI fitting dimensions (similar to DIN 7079)
  • Mounting: For use in sight flow indicator assemblies and piping systems to ANSI standards
  • Seal Type: Fused metal-glass joint – no gaskets required
  • Pressure/Temperature Capability: Dependent on size and material grade (details available on request)

Applications

  • Flow indicator fittings for liquid and gas pipelines
  • Process monitoring in chemical and petrochemical plants
  • Steam and condensate systems requiring ANSI compatibility
  • Oil & gas, power generation, and industrial utility processes
  • Replacement for standard DIN 7079-type sight glasses in existing equipment
Key Advantages:
  • Fully compatible with ANSI flow indicator fittings
  • Mechanical pre-stress ensures high pressure and thermal resistance
  • Maintenance-free and leak-tight metal-glass construction
  • Direct replacement for DIN 7079 sight glass designs
  • Proven durability under industrial vibration and cyclic loading

John Moncrieff Ltd supplies certified METAGLAS® Type 177 ANSI assemblies for process and instrumentation visibility systems — precision-manufactured, pressure-tested, and fully compliant with ANSI and PED requirements.

Technical Specifications:


Tags: Metaglas Type 177, ANSI flanged sight glass, metal fused sight glass, high-pressure sight window, industrial sight glass Type 177, John Moncrieff Metaglas Type 177