Description: A� Blind Flange� is a solid disk used to block off a pipeline or to create a stop. Like a regular flange, it also has mounting holes around the perimeter and the gasket sealing rings machined into the mating surface. The difference is that a� blind flange� has no opening to allow fluid to pass through.� Specifications: Size: 1-13/16 in ~ 26-3/4 in Working Pressure: 2000PSI, 3000PSI, 5000PSI, 10000PSI, 15000PSI, 20000 PSI Material: AISI 4130(forged)/ SUS316/Inconel 625 / 410 Stainless Steel Face: RTJ, FF, RF