Detailed information:
The corrugated metal gasket shall be proven to be both reliable and cost-effective for the applicable on flange and heads where bolt loading is sufficient. Their operation principle is based on different degrees of hardness of adjacent materials. The sealing effect is produced by the constant load to which a gasket is exposed. They are used in applications, which require mechanical strength, thermal conductivity, as well as teperature and corrosion resistivity. They can be classified into flat, serrated and corrugated types, and are particularly useful when compressibility is not a factor or and where sufficient clamping force is avaible. Metal gaskets featuire greater mechanial strength, better heat transfer and resistant to higher temperatures and pressures, and can offer advantages over the clad type gaskets in certain applications.
The corrugated metal gaskets with soft soft layer on both sides are used in low-pressure applications in large diameter flue gas ducts at high temperatures. The use of corrugated gaskets eliminates the problem of difficult handling with largen on metal gaskets used in those applications. They are suitable for gas pipes and valve caps, or wherever acids, oils and chemicals are found. They can be used at lower pressures and higher temperatures.
Advantages:
1- outstanding mechanical strength and thermal conductivity
2- capable of withstanding high temperatures
3- There aer almost no limitations regarding size
4- solid construction provides stability even for large diameters and ensures trouble-free handling and installation.
Corrugated metal is covered with graphite, ceramic or PTFE layer's. An additional finishing layer is applied depending on the requirements of the medium to be sealed. Such gaskets are used on uneven or distorted sealing surfaces, where more elastic materials with better sealing performance are needed.
Note: The metal is 0.5 mm thick and the corrugation pitch is 3mm, 4mm or 6mm depending on the width of the gaskets. The thickness of corrugation is approx. 1mm to 1, 5mm, depending on gasket size. Corrugated metal can be covered with graphite, ceramic or PTFE layers in thickness 0.5mm, 1mm or 1, 5mm.
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| Material |
ASTM |
DIN Material No. |
| Low Carbon Steel |
Soft iron |
1.1003 |
| Stainless steel |
AISI 304 |
1.4301 |
| Stainless steel |
AISI 316 |
1.4401 |
| Stainless steel |
AISI 321 |
1.4541 |
| Stainless steel |
AISI 316 Ti |
1.4571 |
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