A spectacle blind flange is a safety device used to isolate a section of pipeline or equipment when they need to be inspected or removed from piping system. It is not like a valve, the spectacle blind flange is a permanent or long term isolation block.
The spectacle blind flange is made of two pieces metal discs which are joint together by a part of steel handle. The two discs are connected by a hinge, so that the blind flange can be rotated to open or close the pipeline.

Technical Specifications
a. Material: Carbon steel, stainless steel, alloy steel
b. Standard: ASME B16.47
c. Face type: Raised face (RF), flat face (FF), ring type joint face (RTJ)
d. Size: 12/â?? to 24â??
e. Pressure rating: 300,600,900,1500,2500 Lbs

Features
A. Easy to install and remove
B. Permanent or long term isolation
C. Cost-effective alternative to isolation valves
D. Wide range of materials and sizes available

Applications
A. Pipelines
B. Process equipment
C. Boilers
D. Tanks
E. Vessels

Benefits
1. Safety: Prevents accidental release of fluids or gases
2. Cost-effectiveness: More affordable than isolation valves
3. Convenience: Easy to install and remove
4. Durability: Made from high-quality materials