TOBO STEEL GROUP CHINA
TOBO GROUP TOBO International Trading(Shanghia)Co.,Ltd Tianda Oil Pipe Co., Ltd TOBO Pipeline Equipment Co.,Ltd TPCO & TISCO Pipe(Tianjin)Co.,Ltd.
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Corrugated Metal Gasket
The corrugated metal gasket shave been proven to be both reliable and cost-effective for the application 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 temperature 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 available. Metal gaskets feature greater mechanical strength, better heat transfer and resistance to higher temperatures and pressures,and can offer advantages over the clad type gaskets in certain applications.
The corrugated metal gaskets with 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 large non-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 atlower pressures and higher temperatures.
The gasket comprises a corrugated metal core in stainless steel with a graphite foillayer on either side. The corrugated ring provides high compression on the soft material on the corrugated crests, low cross-sectional diffusion increased blowout safety as well as improved stability and handling.
This sealing system features high leak-tightness even at low surface contact pressure, high adaptability and resilience properties.
The inner ring effects a further reduction ion diffusion and prevents the graphite layers from impacting the operating medium The gasket can be used in flat face, raised face and male and female face flanges, for equipment with larger dimensions and in specialpurpose flanged connections.
gasket comprises a corrugated metal core in stainless steel with a graphite foillayer on either side. The corrugated ring provides high compression on the soft material on the corrugated crests, low cross-sectional diffusion increased blowout safety as well as improved stability and handling.
This sealing system feature high leak-tightness even at low surface contact pressure, high adaptability and resilience properties.
The inner ring effects a further reduction ion diffusion and prevents the graphite layers from impacting the operating medium The gasket can be used in flat face, raised face and male and female face flanges, for equipment with larger dimensions and in specialpurpose flanged connections.
Sytle No:RS4-VW gasket comprises a corrugated metal core in stainless steel with a partial graphite foil layer on either side. The sealing system is based on our RS4-VI and features excellent sealing properties The partial covering reduces the sealing face and thus increases the specific surface contact pressure. This design should be given preference over the RS4-VI where bolting force is low and in seals with larger sealing widths
Gasket comprises a corrugated metal core in stainless steel with a graphite foillayer on either sides. The corrugated ring provides high compres-sion on the soft material on the corrugated crests, low cross-sectional diffusion increased blowout safety as well as improved stability and handling
This sealing system featu-res high leak-tightness even at low surface contact pre-ssure, high adaptability and resilience properties The inner ring effects a further reduction diffusion and prev-e nts the graphite layers from impacting the operating medium.
The gasket can be used in flat face, raised face and male and female face flanges, for equipment with larger dimensions and in special purpose flanged connections
Dimensions for Corrugated Metal Gasket (CMG) to Suit ASME B16.5 Flanges
| Core Material | Max. Temperature |
|
|
| Stainless Steel | 1000-1600°F535-870°C) |
| |
| Carbob Steel | 800°F425°C |
|
|
| Brass | 500°F260°C |
|
|
| Copper | 600°F315°C) |
|
|
| Aluminum | 800°F(425°C |
|
|
| Monel | 1500°F(815°C |
|
|
| Nickel | 1400°F760°C |
|
|
| Inconel | 2000°F1100°C |
| |
| Facing Material | Max. Temperature | Pressure at Room Temp | |
|
|
| Min.Mpa(PSI) | Max.Mpa(PSI) |
| Flexible Graphite | 500°C932°F | 17(2500 | 500(72500) |
| Non-Asbestos Sheet | 400°C752°F | 233300 | 500(72500) |
| PTFE | 260°C500°F | 172500 | 500(72500) |
Dimensions Corrugated Metal gaskets to Suit DlN EN 1514-4
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.
Meterials for Metal and Corrugated Metal Gaskets:
| 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 |
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.
Meterials for Metal and Corrugated Metal Gaskets:
| 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 |
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.
