| Material Specification | ASME B16.48 Spectacle Blind Flange |
|---|---|
| ASME B16.48 Standard Cover | pressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing |
| ASME B16.48 Available In | NPS 1/2 – NPS 24 Size |
| Use of ANSI/ASME B16.48 | In bypass line At unit battery limit At outlets and inlets of static Rotary equipment |
| ASME B16.48 Facing Types | Raised Face – High Pressure Applications Flat face – Low-Pressure Applications Male & Female Ring-Joint Blank – Ring Joint Gaskets |
| Materials | Carbon Steel Spectacle Blind Flanges – (ASTM A105) Stainless Steel Spectacle Blind Flanges – (ASTM A182 F304, F304L, F304H, F316, F316L, F316Ti, F310, F310S, F321, F321H, F317, F347, F347H, F904L.) Alloy Steel Spectacle Blind Flanges – (ASTM A182 F1, F11, F22, F5, F9, F91.) Duplex Stainless Steel Spectacle Blind Flanges – (UNS S31803, UNS S32750) Nickel Alloys Spectacle Blind Flanges – (Incoloy 800, 825, Hastelloy C22, C276, Monel 400 And 500, Inconel 600 And 625.) |
| ANSI B16.48 Test | During leakage testing test blanks |
| Flanges Standards | EN 1092-1, JIS, ASME B16.5, ASME B16.47 type A, UNI, DIN |
| Pressure Rating | Class 150 To Class 2500 |
| ASME B16.48 Marking Standard | Name of Manufacturer Schedule Type of Flange Facing Nominal Pipe Size Pressure Class ASME B16 Designation |
| ASME B16.48 Bolt Type | high strength bolts medium strength bolts low strength bolts |
| ASME B16.48 Surface Finish | smooth, concentric serrated, stock |
| ASME B16.48 Gaskets Types | Full Face Gasket Flat Ring Gasket Metallic Ring Gakset |