Spiral wound gasket Standard (LS_STD)

Brand: Legiaseal
Type: Semi-Metallic Gasket Spiral Wound Gasket Standard

With widely usage, it is applicable to sealing under heavily alternating temperature or pressure such as the static sealing at flanges of pipeline, valves, pumps, heat exchangers, columns, manhole and hand hole. It has a wide application in petrochemical mechanical, electric power, metallurgical, ship-building, pharmaceu-tical, nuclear power and aerospace industries.

Applications:

Petrochemical, refinery, power plant, offshore, and general industrial piping systems.

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Construction:

Spiral wound gasket consists of a V-shaped metal winding strip and a soft filler material (graphite or PTFE). It can be supplied with an inner ring, outer centering ring, or both, depending on the application.

Materials:

- Winding: SS304, SS316, SS321, etc.
- Filler: Graphite, PTFE, Mica, etc.
- Inner/Outer ring: Carbon steel, SS304, SS316, etc.

Features:

Excellent recovery and resilience under fluctuating loads.
Suitable for high temperature and high-pressure services.
Good chemical resistance (especially with PTFE filler).
Conforms to ASME B16.20 / EN 1514-2 standards.

Service temperature:

Graphite filler: up to 550 °C
PTFE filler: up to 260 °C
Pressure range: ASME Class 150 – 2500
Recommended flange surface finish: 3.2 – 6.3 µm Ra
Compression and recovery: High compressibility with good elastic recovery.
Chemical resistance: Excellent against a wide range of chemicals.

Standards available:

ASME B16.20, EN 1514-2, JIS B2404,
Nominal sizes: ½″ – 60″ (DN15 – DN1500)

Thickness options:

Basic type: 3.2 mm
With inner or outer ring: 4.5 mm or 7.2 mm

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