This gasket is wound alternative by V or W shaped metal hoop and non-metal filler of various kind of materials selected based on specific working condition.Depend on its excellent compression resilient.It is suitable for sealing spots where the alteration of temperature and pressure are frequent,such as pipe,valve,pump etc.They are available in all standard the flanges of sizes,such as ANSI,API,BS,JPI,DIN etc.
|
Commdity |
Pressure(kgf/cm3) |
Temp °C |
Leakage rate |
Min Pretight |
Factor |
|
spiral wound gasket filled with expanded graphite |
(under hot water,oil,etc.)300 |
in oxidizing media
-240~550 |
1.0x105cm3/s |
400kgf/cm2 |
2.5~3 |
|
(under vapor oil,gases,etc.)200 |
in non-oxidizing media -240~800 |
|
spiral wound gasket filled with asbestos |
150 |
-150~450 |
1.0x104cm3/s |
500kgf/cm2 |
3~4 |
|
spiral wound gasket filled with PTFE |
150 |
-200~250 |
1.0x105cm3/s |
400kgf/cm2 |
2.5~3 |
|
