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Pemasok yang Diaudit The metal Spiral wound gasket is a semi metallic flat gaskets spirally wound by V or W shaped stainless strip and filling material.Filler is the main body of the gasket and different material is used in different conditions.
Specifications:
| Product Name | Industrial seal metallic spiral wound gasket carbon steel gasket |
| Size | 10-3000mm |
| Hoop material | 304,316,316L,Mon400,Inconel,Etc. |
| spiral Wound gasket coefficient | m=2.5-4 |
| Use pressure | ≤25MPa |
| Use temperature of spiral wound gasket | -196 C -700 C (not more than 600 C in oxidizing medium) |
| Minimum pretension ratio | Y=68MPa |
| Flanges standard | ASME B16.20 |
| Type,Flange |
1.Basic type: Tongue and Groove 2.With outer ring: Raised face and Flat face 3.With inner ring: Male and Female 4.With inner and outer ring: Raised face and Flat face |
Spiral Wound Gasket Advantages:
1.Have good compression and resilience;
2.With appropriate plasticity, can be tightened to adapt to the sealing surface of the rugged and fill the sealing surface gap to ensure that the system temperature and pressure in the case of alternating with good sealing performance.
3.Has excellent corrosion resistance; in some extreme media is not destroyed, does not produce a large expansion and contraction.
4.High temperature conditions do not soften, no creep; low temperature conditions do not harden, do not shrink.
5.Have sufficient strength, under external load conditions, not crushed; under high pressure, not blown out.
Spiral wound gasket filling material:
| Filling | Steel band | Inner ring | Outer ring | Temperature(°C) | Max operating pressure(kg/cm2) |
| SUS 304 | Carbon steel | Carbon steel | -200~550 | 250 | |
| Graphite wrapping | SUS 316 | SUS 304 | SUS 304 | -150~450 | 100 |
| Teflon wrapping | SUS 316L | SUS 316 | SUS 316 | 240~260 | 100 |
| SUS 316L | SUS 316L |
Wrapping pad thickness tolerance:
| Item | Thickness(mm) | Tolerances(mm) |
| Gasket thickness | 4.5, 3.2 | +0.2,-0.1 |
| Ring thickness | 3.0 | ±0.24 |
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