Spiral Wound Gasket Manufacturer
Spiral Wound Gasket Description
- Managing the alternating load (Eg: The loads during start-up and shut-down procedures).
- Temperature resistance properties depending on the non-metallic filler material and Spiral metal materials.
- Constant temperature range for Filler of PTFE: -200 °C to approx.250°C.
- Constant temperature range for Filler of graphite: -200°C to approx.450 °C, higher temperatures are also possible depending on the design of gasket.
- Media resistance depending on the non-metallic Filler material and Spiral metal material.
- Very high-pressure withstanding limits of up to 320 bar.
- Complies with TA Luft 2002 [VDI 2440/2200] standard leakage requirements.
- Complies with VDI 2290 [with calculatory leakage certificate following DIN EN 1591-1].
- Fire Safe Test [Graphite Filler].
- Blow-out resistance [graphite filler].
- BAM-test reports for liquid and gaseous oxygen applications [graphite filler].
- BAM-test report for ethylene and propylene oxide applications [graphite filler].
- FDA-conformation [PTFE Filler].
- No ageing and embrittlement of gaskets even at high temperatures.
- Labeling for design with centering ring.
- Established sealing system for the chemical and petro-chemical sector, in conventional power and nuclear power stations, for steam generation and in device construction, especially wherever high temperatures and pressures have to be managed safely.
- Can be used in pipelines, flanges, device/container flanges, also in pumps and valves.
- These gaskets can be used for very high operating pressures and/or temperature conditions
- Flange roughness of Rz<=80 „µm“ is recommended.
- Can be supplied with filler of graphite or PTFE as non-metallic material, for higher temperature ranges >= 550°C with insert of mica or spiral made from 1.4828.
- Dimensions of gaskets and set-up following DIN EN 1514-2 standards, DIN EN 12560-2 standards and ASME B16.20, flange according to ASME B16.47 series A and B;
- Spiral wound with filler Material for use in tongue/groove flanges.
- Spiral wound with filler Material with inner- and centering ring for use in raised face flanges.
- Spiral wound with filler Material accompanied with centering ring.
- Spiral wound with filler Material and inner ring.
- Dimensions and set-up following DIN EN 1514-2,DIN EN 12560-2 and ASME B16.20, flange according to ASME B16.47 series A and B;
- Wound spiral with filler for tongue/groove flanges.
- Wound spiral with filler with inner- and centering ring for raised face flanges.
- Wound spiral with filler and centering ring.
- Wound spiral with filler and inner ring.
- Nominal width
- Nominal pressure stage
- Material of the inner ring, spiral, filler material and centering ring
- Colour coding following DIN EN 1514-2 or ASME B16.20
History of Spiral Wound Gasket
Q & A
Spiral wound gaskets can be used for sealing flange joints, manhole and handhold covers, tube covers, boilers, heat exchangers, pressure vessels, pumps, compressors and valves; in industries such as petrochemical, pharmaceutical, shipbuilding, and food processing, in power industries and nuclear power stations.
Most gaskets are cut from sheet material and that means they seal on their flat surfaces. When flanges are out of parallel the gap between them varies, forcing the use of thicker material. Where the gap is smaller the material must compress more. Pretty quickly the material reaches the limits of what it can do.
Solid metal gaskets are more expensive. This type of gasket consists of a grooved metal plate with a process-compatible sealer filling the groove. Under load, the material in the groove compresses and seals the process. With proper maintenance, which includes sealer reapplication, these gaskets can be reused.