Spiral wound gaskets

The spiral wound gaskets find their applications in high temperatures and pressures situations when the plastic gaskets (asbestos free or graphite) are way above their application standards. These gaskets are made of metallic stripes with a V shape in the middle and linked together by inorganic filler and could be on standard dimension or tailored on customer design.
Guarnizioni Spirometalliche Spiral Wound Gaskets - FF.GI. Srl

TYPES:

FFSW1

Spiral wound gasket without containment rings

FFSW2

Spiral wound gasket with internal containment ring

FFSW3

Spiral wound gasket with external centring ring

FFSW4

Spiral wound gasket with both internal containment ring and external centring ring

MATERIALS:

tabella_spirometalliche

PRESSURE:

- up to 400 BAR

TEMPERATURES:

- GRAPHITE: - 200/+500°C
- PTFE: -200/ +260°C
- CERAMIC: -100/+1250°C
- MICA: -100/+900°C

THICKNESS:

- 3,2mm
- 4,5mm
- 6,4mm
- 7,2mm

DIMENSIONAL STANDARDS:

- DIN 2690 – DIN 2632 – DIN 2638 flanges
- ASME B16.20 (API 601) for ANSI B16.5 flanges
- ASME B16.47 SERIE A for MSS SP44 flanges
- ASME B16.47 SERIE B for API 605 flanges

Special dimensions on request up to 5000mm diameter.