Metaglas Type 61 NPT Borosilicate

Product Code: Metaglas Type 61 NPT Borosilicate

METAGLAS® Type 61 NPT Borosilicate — Threaded Sight Glass for Oil Level Monitoring

The METAGLAS® Type 61 NPT Borosilicate sight glass provides a secure, metal-fused viewing solution for female NPT and NPTF-threaded connections. Designed for oil level indication and process monitoring, this robust assembly combines the strength of stainless steel with the optical clarity of borosilicate glass.

CRN-Approved: OF16204.2

Design & Construction

Connection Type: Female NPT / NPTF thread for direct installation
Glass Material: Borosilicate METAGLAS® metal-fused glass
Body Material: Stainless steel for maximum corrosion resistance
Design Strength: Mechanical pre-stress within the fused glass ensures exceptional safety
Pressure Integrity: Resistant to mechanical shock, vibration, and temperature fluctuation
Certification: CRN Approved (OF16204.2) for regulated applications

Applications

Oil level indication in gearboxes, pumps, and reservoirs
Process observation in hydraulic and lubrication systems
Visual inspection of fluids in sealed or pressurised systems
Industrial and marine environments requiring robust visual indicators

Key Advantages:

Direct female NPT/NPTF installation for easy retrofitting
High mechanical strength with zero risk of glass separation
Maintenance-free metal-fused glass construction
Exceptional resistance to pressure, shock, and temperature extremes
Certified safety — CRN OF16204.2 approval

John Moncrieff Ltd supplies METAGLAS® Type 61 NPT Borosilicate sight glasses for demanding industrial environments where reliability, clarity, and certification are essential. Specify your thread size, material grade, and temperature rating for a precise system fit.

Technical Specifications:

Download Metaglas Type 61 NPT Borosilicate (124.66 kB)

Tags: Metaglas Type 61, NPT sight glass, borosilicate sight glass, screw-in sight glass NPT, metal-fused sight glass Type 61, John Moncrieff Metaglas Type 61