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金属缠绕垫片


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产品说明

    RD810系列无石棉金属缠绕垫由被压制成V型或W型的金属钢带和无石棉无机质纸、柔性石墨或PTFE等柔软的非金属带状填料交替缠绕而成。
其中，金属带保证了垫片的回弹性，非金属带状填料保证了垫片的气密性，故能够对系统的压力、热循环和振动进行自动补偿，通常被使用在温度和压力波动频繁或剧烈的工况下。根据使用情况的要求，缠绕部位的内外径方向可带有内外金属环。
和其它生产商不一样，RAIDO产品不含有石棉成分，为环保产品。
主要优点
◆ 适用的紧固应力范围广
◆ 坚固耐用，安装方便
◆ 外环装配简便，可防止垫片挤压变形
◆ 基于使用的材质，可以在-200℃～1000℃的温度和400bar的压力内有效保证系统的密封
◆ 通过不同材质的金属缠绕带和非金属带状填料的组合，可以根据客户需求制成适合不同工况的缠绕垫
◆ 垫片拆卸方便，不会损坏法兰密封面及水线
The spiral wound gasket depends upon the mechanical characteristics of a formed metal spiral strip, rather than the compressive virtues of more traditional gasket materials. This makes it particularly suitable for low or fluctuating bolt loads. The sealing strips, or fillers, are usually graphite, although other materials such as Teflon® may be used, the windings are always s/steal. For this type of gasket to work the spiral must not be over compressed, hence one of two types of compression control is usually used.

The completed gasket is fitted into a steel ring of specific thickness. When the gasket is fitted into a flange and the bolt load is applied, flange closure is governed by the outer steel ring of the gasket. To further improve the pressure rating of the spiral wound gasket, a steel ring may be added to the inside. This also protects the windings (particularly the filler) , from contamination, or attack by, the product.

The second usually compression control is not fitted to the gasket at all, but engineered into the flange. These Gaskets are called Unsupported Spiral Wound Gaskets.

METAL WINDING STRIP

Stainless Steel 316L
Stainless Steel 304
Stainless Steel 309
Stainless Steel 310
Stainless Steel 316Ti
Stainless Steel 321
Stainless Steel 347
Monel 400
Nickel 200
Inconel 600
Inronel 625
Inconel X750
Incoloy 800
Incoloy 825
Hastalloy B2
Hastalloy C276
Titanium

FILLER MATERIALS

Treated Asbestos Fiber
Non-Asbestos Fiber
P.T.F.E
Graphite
Ceramic
Aluminum
GUIDE RING MATERIALS

Carbon Steel
Stainless Steel 304
Stainless Steel 316L
Stainless Steel 316Ti
Stainless Steel 321
Stainless Steel 347
Stainless Steel 4l0
Monel 400
Nickel 200
Inconel 600
Incoloy 800
Inroloy 825
Hastalloy B2
Hastalloy C276
Titanium
Alloy 20

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