Titanium Spectacle Blind vs Paddle Blind and Spacer
A spectacle blind combines a solid blind and open spacer in one figure-eight component; a paddle blind and spacer are separate pieces. Both can support positive isolation between compatible flanges, but handling, position indication and component control differ.
Configuration Comparison
| Item | Spectacle blind | Paddle blind and spacer |
|---|---|---|
| Construction | Joined solid and open ends | Two separate components |
| Position indication | Visible from assembly orientation | Depends on marking and component control |
| Handling | Requires rotation clearance | Separate handling and storage |
| Large size | Combined part can be heavy | Pieces may be easier to lift individually |
Isolation Procedure Controls Selection
Review depressurization, drainage, stored energy, flange spreading, bolt removal, gasket replacement, lifting, access, position verification and lockout/tagout. Product geometry alone does not create a safe isolation procedure.
Dimensional and Material Compatibility
Define standard/drawing, size, class, facing, bore, thickness, handle, titanium grade, service and mating flange details. Confirm required bolt length and gasket arrangement for both operating positions.
Review the Isolation Component
See Titanium Spectacle Blind and the Titanium Flange family.
RFQ Checklist
- Type, standard/drawing, NPS/DN and class
- Facing, bore, thickness and handle orientation
- Grade, service, pressure and temperature
- Gaskets, bolting, lifting and marking
- Inspection, MTC and traceability
FAQ
Are a spectacle blind and paddle set interchangeable?
Only after dimensional, design and operating-procedure approval.
Does visible orientation replace lockout verification?
No. Follow the approved isolation and LOTO procedure.
Related Reading
Specify a Spectacle Blind · Line Blank Applications · Plate vs Forged Flange