DOM0303070336009A FLEXSEAL® RWI Spiral Wound Gasket for 36 inch ASME B16.47 Series A Class 900

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The FLEXSEAL® RWI is engineered for ASME flanges with Inner Ring, metal windings, filler material, and a centering ring. Style RWI 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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Color CodingGreen with Light Blue stripe
CompliancesREACH Compliant, RoHS Compliant, Domestic USA Manufactured
Filler MaterialTHERMa-PUR®
Filler Material AbbreviationTHERMa-PUR®
Flange Standards/Pressure ClassASME B16.47 Series A Class 900, MSS SP-44 Class 900
Gasket StandardASME B16.20
Inner Ring Material316L Stainless Steel
Inner Ring Material Abbreviation316L SS
Inside Diameter (Inch)36.250
Inside Diameter (mm)920.75
Inside Diameter Inner Ring (inch)36.250
Inside Diameter Inner Ring (mm)920.75
Inside Diameter Seal (inch)37.750
Inside Diameter Seal (mm)958.85
Max Temperature (C)760
Max Temperature (F)1400
Min Temperature (C)-100
Min Temperature (F)-150
Nominal Pipe Size (inch)36.000
Nominal Pipe Size DN (mm)900.0
Nominal Pipe Size Fraction (Inch)36
Outer Diameter Outer Ring (inch)47.250
Outer Diameter Outer Ring (mm)1200.15
Outer Diameter Seal (inch)39.750
Outer Diameter Seal (mm)1009.65
Outer Ring Material316L Stainless Steel
Outer Ring Material Abbreviation316L SS
Outside Diameter (inch)47.250
Outside Diameter (mm)1200.15
Pipe Standard and ClassASME B16.47 Series A Class 900, MSS SP-44 Class 900
Primary Dimensional Unit of MeasureImperial
Product Weight0 lbs
Style/ModelRWI
Thickness Compressed (inch)0.125
Thickness Compressed (mm)3.18
Thickness Uncompressed (inch)0.175
Thickness Uncompressed (mm)4.45
Winding Material316L Stainless Steel
Winding Material Abbreviation316L SS

Features and Benefits:

  • Durable; easy installation and removal
  • Seals pressures to flange ratings, in accordance with ASME B16.5 and B16.47
  • Suited to temperatures from cryogenic to 2000°F / 1093°C, depending on metal and filler
  • Guide ring simplifies centering of sealing element on the flange face
  • Custom-tailored solutions accommodate a variety of conditions by combining various metals and filler materials
  • Suitable for raised face flanges up to class 2500# flanges
  • Inners rings are provided standard for ASME B16.20 unless otherwise specified by the customer
  • Inner ring can help shield sealing elements from erosion caused by abrasive media
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