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Spiral wound gasket is formed by overlapping and winding V or W shaped stainless steel tape and flexible graphite tape & then welding the end point. Because of excellent compressibility & resiliency,lt is mainly used for the sealing of piping,flanges,valves & pump under conditions of high temperature & high pressure. We can manufacture according to the special requirements of the customer & the foreign standards such as ASMI ,BS ,DIN ,JIS etc .VARIIETYSpiral wound gasket -graphite with metal,Spiral wound gasket -asbestos with metal ,Spiral wound gasket- PTFE with metal,and Sprial wound gasket non-asbestos with metal.COMPONENTNoumenon (metal tape ,non – metal tape) ,strengthen ring (inner and outer ring)
| Type | Merla tape metal | Nin-metal tape(filler materal) | Inner,Outer Ring materal |
| Basic type | AiSi304 , 316 ent.As specifiedStainless steel belt | AsbestosExpandedGraphitePTFE | Carbon steel sheet orAISI304,316 etc,asspecified sheel |
| With inner ring | |||
| With outer ring | |||
| With inner,outer ring |
| Commodity | Pressure | Temp | Leakage rate | Min Pretight | Facrot |
| Spiral Wound Gasket Filled With Expanded Graphite | Under hot water.oil etc300 | In Oxidizing Media-240-550 | 1.0x10 -5 cm 3 /s | 400kgf/cm 2 | 2.5-3 |
| under Vapor oil gases.etc.200 | In non-Oxidizing Media-240-800 | ||||
| Spiral Wound Gasket Filled With Asbestos | 150 | 150-450 | 1.0x10 -4 cm 3 /s | 500kgf/cm 2 | 3-4 |
| Spiral Wound Gasket Filled With PTEE | 150 | -200-250 | 1.0x10 -5 cm 3 /s | 400kgf/cm 2 | 2.5-3 |
| Flange type | Spiral Wound Form |
| Flat face flange(F.F) | Gasket with an outer ring |
| Gasket with inner and outer ring | |
| Raised face flange(R.F) | Gasker with an outer ring |
| gasket with inner and outer ring | |
| Male and female flange(MFM) | Basic form gasket |
| Gasket with inner and outer ring | |
| Tongue and groove flange(TG) | Basic form gasket |
| Flat and groove flange(TG) | Basic form gasket |
| Flat and grooveflange(FG) | Gasket with an outer ring |
Spiral Wound Gasket