DFAR03051028003B FLEXSEAL® RW Spiral Wound Gasket for 28 inch ASME B16.47 Series B Class 300 Flange
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The FLEXSEAL® RW is engineered for ASME flanges with metal windings, filler material, and a centering ring. Style RW offers excellent general purpose performance for raised face flanges. Its durable construction and consistent compression deliver superior safety and exceptional sealing performance.
| Color Coding | Silver with Gray stripe |
| Compliances | REACH Compliant, RoHS Compliant, DFARS Compliant |
| Filler Material | Flexible Graphite |
| Filler Material Abbreviation | FG |
| Flange Standards/Pressure Class | ASME B16.47 Series B Class 150, API-605 Class 150 |
| Gasket Standard | ASME B16.20 |
| Inside Diameter (Inch) | 38.370 |
| Inside Diameter (mm) | 974.60 |
| Inside Diameter Inner Ring (inch) | 37.750 |
| Inside Diameter Seal (inch) | 38.370 |
| Inside Diameter Seal (mm) | 974.60 |
| Max Temperature (C) | 454 |
| Max Temperature (F) | 850 |
| Min Temperature (C) | -22 |
| Nominal Pipe Size (inch) | 38.000 |
| Nominal Pipe Size DN (mm) | 965.0 |
| Nominal Pipe Size Fraction (Inch) | 38 |
| Outer Diameter Outer Ring (inch) | 41.130 |
| Outer Diameter Outer Ring (mm) | 1044.70 |
| Outer Diameter Seal (inch) | 39.750 |
| Outer Diameter Seal (mm) | 1009.65 |
| Outer Ring Material | Carbon Steel |
| Outer Ring Material Abbreviation | CS |
| Outside Diameter (inch) | 41.130 |
| Outside Diameter (mm) | 1044.70 |
| Pipe Standard and Class | ASME B16.47 Series B Class 150, API-605 Class 150 |
| Primary Dimensional Unit of Measure | Imperial |
| Source | DFARS Compliant |
| Style/Model | RW |
| Thickness Compressed (inch) | 0.125 |
| Thickness Compressed (mm) | 3.18 |
| Thickness Uncompressed (inch) | 0.175 |
| Thickness Uncompressed (mm) | 4.45 |
| Winding Material | 304/304L Stainless Steel |
| Winding Material Abbreviation | 304/304L SS |
Features and Benefits:
- Easy installation and removal
- Seals pressures to flange ratings, in accordance with ASME B16.5
- Suited to temperatures from cryogenic to 2000°F / 1093°C, depending on metal and filler
- Custom-tailored solutions accommodate a variety of conditions by combining various metals and filler materials
- Centering ring accurately locates the gasket on the flange face, provides additional radial strength, and acts as a compression limiter
- Spiral winding (sealing element) consists of preformed metal and soft filler material
- NOTE: Per ASME B16.20 all spiral wound gaskets for ASME B16.5 or B16.47 flanges are made with outer and inner rings (FLEXSEAL® RWI) unless specified by the customer at the time of order.
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The FLEXSEAL® RW is engineered for ASME flanges with metal windings, filler material, and a centering ring. Style RW offers excellent general purpose performance for raised face flanges. Its durable construction and consistent compression deliver superior safety and exceptional sealing performance.
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