Basic Style Spiral Wound Gasket / Gasket Sheet Material / Pipe Flange Gasket
Spiral wound gasket is formed of V-shaped metallic strip and soft non-metallic filler by means of piled,
spiral wound gasket and connected its end and beginning by dot welded. Depend on its excellent compression
resilience, it is suitable for sealing sports where the alteration of temperature and pressure are frequent.
It can be used as the static sealing element of pipe, valve, pump, thermal exchange, condensing tower,
plain hole and man hole of flange, etc. It has been widely applied in the fields of petrochemical,
mechanical factory, power station, metallurgy, shipbuilding, medical and pharmaceutical unclear
power station and navigation, etc.
Dimensions for Spiral wound gasket per ASME B16.20 to suit ASME B16.5 flanges
Nominal Pipe
size(NPs) | Class 150 |
Inner Ring Inside
Diameter(ID) | Winding Inside
Diameter(ID) | Winding Outside
Diameter(OD) | Guide Ring Outside
Diameter(oD) |
| | lnches | mm | lnches | mm | lnches | mm | lnches | mm |
| 1/4* | - | | 0.50 | 12.7 | 0.88 | 22.2 | 1.75 | 44.5 |
| 1/2 | 0.56 | 14.20 | 0.75 | 19.10 | 1.25 | 31.80 | 1.88 | 47.60 |
| 3/4 | 0.81 | 20.60 | 1.00 | 25.40 | 1.56 | 39.70 | 2.25 | 57.20 |
| 1 | 1.06 | 26.90 | 1.25 | 31.80 | 1.88 | 47.60 | 2.63 | 56.70 |
| 1 1/4 | 1.50 | 38.10 | 1.88 | 47.60 | 2.38 | 60.30 | 3.00 | 76.20 |
| 1 1/2 | 1.75 | 44.50 | 2.13 | 54.00 | 2.75 | 69.90 | 3.38 | 85.70 |
| 2 | 2.19 | 55.60 | 2.75 | 69.90 | 3.38 | 85.70 | 4.13 | 104.80 |
| 2 1/2 | 2.62 | 66.50 | 3.25 | 82.60 | 3.88 | 98.40 | 4.88 | 123.80 |
| 3 | 3.19 | 81.00 | 4.00 | 101.60 | 4.75 | 120.70 | 5.38 | 136.50 |
| 3 1/2* | 3.50 | 88.90 | 4.50 | 114.30 | 5.25 | 1334.00 | 6.38 | 161.90 |
| 4 | 4.19 | 106.40 | 5.00 | 127.00 | 5.38 | 149.20 | 6.88 | 174.60 |
| s | 5.19 | 131.30 | 6.13 | 155.60 | 7.00 | 177.80 | 7.75 | 196.90 |
| 6 | 6.19 | 157.20 | 7.19 | 182.60 | 8.25 | 209.60 | 8.75 | 222.30 |
| 8 | 8.50 | 215.90 | 9.19 | 2334.00 | 10.38 | 263.50 | 11.00 | 279.40 |
| 10 | 10.56 | 268.20 | 11.31 | 287.30 | 12.50 | 317.50 | 13.38 | 339.70 |
| 12 | 12.50 | 317.50 | 13.38 | 339.70 | 14.75 | 374.70 | 16.13 | 409.60 |
| 14 | 13.75 | 349.30 | 14.63 | 371.50 | 16.0D | 406.40 | 17.75 | 450.90 |
| 16 | 15.75 | 400.10 | 16.63 | 422.30 | 18.25 | 463.60 | 20.25 | 514.40 |
| 18 | 17.69 | 449.30 | 18.69 | 474.70 | 20.75 | 527.10 | 21.63 | 549.30 |
| 20 | 19.69 | 500.10 | 20.69 | 525.50 | 22.75 | 577.90 | 23.88 | 606.40 |
| 24 | 23.75 | 603.30 | 24.75 | 628.70 | 27.00 | 685.80 | 28.25 | 717.60 |
* not listed in ASME B16.20
Basic construction style, inner and outer diameters are reinforced with several plies of metal without filler to give
greater stability and better compression characteristics.
Suitable for tongue and groove or male and female or grooved to flat face flange assemblies.
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Basic Style Spiral Wound Gasket V Shaped Metallic Pipe Flange Gasket Images
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