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Spiral wound gaskets are used at high temperatures and pressures when plastic gaskets (asbestos-free or graphite) would not be suitable.
These gaskets are made of metallic strips with a V-shape in the middle and linked together by inorganic filler, and can be either of standard dimensions or tailored to the customer’s design.
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
Metal strip Filler Inner/Outer rings
SS 316L GRAFITE Carbon steel
SS 304 PTFE AISI 316L
Nickel CERAMICA AISI 304
Hastelloy B2/B3
Hastelloy C-276
Hastelloy C-22
Inconel 600 – 625
Monel 400
Incoloy 800-825
Duplex UNS S31803
Super Duplex UNS S32205 		MICA AISI 321
AISI 347
Hastelloy B2/B3
Hastelloy C-276
Hastelloy V22
Inconel 600 – 625
Monel 400
Incoloy 800-825
Duplex UNS S31803
Super Duplex UNS S32205
Technical Data

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

Pressure

– up to 400 BAR
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