Supranite Sheet Gaskets

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Supranite Sheet Gaskets

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SIEM SUPRANITE has developed a range of gaskets by selecting and combining the best raw materials specifically processed to ensure highest sealing performance.

The quality of SUPRANITE gaskets expands the traditional range of applications for flat sheet gaskets and increases sealing performance for sensitive applications. 

RETICULAR STRUCTURE MODIFIED PTFERETICULAR STRUCTURE MODIFIED PTFE

  • SUPRANITE PG XS

    SUPRANITE PG XS

    SUPRANITE ® PG XS is a restructured highly compressible modified PTFE gasket composed with only extra pure PTFE. The specific progressive structure of this quality allows high conformable faces, while ensuring maximum creep resistance.

    • The progressive structure of SUPRANITE ® PG XS allows an enhanced compressibility (50%) while providing low creep deformation and a very good recovery.
    • Sealing properties are improved by using SUPRANITE ® PG XS on damaged or non parallel flanges, compared to other PTFE based material.
    • SUPRANITE ® PG XS delivers a better seal and better recovery than expanded PTFE gaskets.
    • Easy to cut, SUPRANITE ® PG XS is a useful alternative to PTFE-jacketed gaskets.
  • SUPRANITE PG AC

    SUPRANITE PG AC

    SUPRANITE ® PG AC is composed of a homogenous bundle of PTFE fibers having an isotropic structure, resulting in high level of resistance to creep relaxation compared with conventional PTFE gaskets.

    • The isotropic cross-linked structure of SUPRANITE ® PG AC gives it a high level of resistance to creep relaxation compared with other standard PTFE-based gaskets (pure, filled, basically modified, expanded, etc.).
    • SUPRANITE ® PG AC has a high level of elastic recovery and a very good seal, stable over time.
    • SUPRANITE ® PG AC is chemically compatible with all types and most aggressive fluids. It has passed many approvals allowing its use in any type of industry.
  • SUPRANITE PG AC F

    SUPRANITE PG AC F

    SUPRANITE ® PG AC F is composed of a homogenous bundle of PTFE fibers having an isotropic structure, resulting in high level of resistance to creep relaxation compared with conventional PTFE gaskets.

    • The isotropic cross-linked structure of SUPRANITE ® PG AC F gives it a high level of resistance to creep relaxation compared with other standard PTFE-based gaskets (pure, filled, basically modified, expanded, etc.).
    • SUPRANITE ® PG AC F has a high level of resistance to temperature under stress.
    • SUPRANITE ® PG AC F has a high recovery with an appropriate level of compressibility.
    • SUPRANITE ® PG AC F is chemically compatible with all types of the most aggressive fluids, including concentrated fluorhydric acid and concentrated nitric acid.

MULTI LAYERS EXPANDED GRAPHITEMULTI LAYERS EXPANDED GRAPHITE

  • SUPRANITE NGR

    SUPRANITE NGR

    SUPRANITE ® NGR is made of high purity expanded graphite foils and ultra thin stainless steels laminated sheets in a multi-layer structure capable of withstanding high stresses.

    • The specific multilayer adhesive free structure of SUPRANITE ® NGR gives it higher performances than other classical types of graphite based reinforced sheet.
    • SUPRANITE ® NGR has outstanding mechanical properties and remains stable when overstressed at both cold and hot temperature.
    • SUPRANITE ® NGR combines a good level of compressibility associated with a high elastic recovery.
    • SUPRANITE ® NGR is easy to handle and cut, and preserves its integrity under high stresses during tightening process.
  • SUPRANITE NGR AS

    SUPRANITE NGR AS

    SUPRANITE ® NGR AS is made of nuclear grade expanded graphite foils and ultra thin stainless steels, laminated in a multi-layer structure capable of withstanding high stresses. The graphite and stainless steel are bonded without glue by an exclusive physico-chemical process that gives SUPRANITE ® NGR AS outstanding cohesion.

    • SUPRANITE ® NGR AS (PMUC No 17-0214) combines a good level of compressibility associated with a high elastic recovery.
    • SUPRANITE ® NGR AS provides a highly satisfactory seal as soon as the gasket starts to be tightened.
    • SUPRANITE ® NGR AS has outstanding mechanical properties and remains stable when overstressed at both cold and hot temperature.
    • SUPRANITE ® NGR AS is easy to handle and cut, and preserves its integrity under high stresses during tightening process.

EXFOLIATED VERMICULITEEXFOLIATED VERMICULITE

  • SUPRANITE V01

    SUPRANITE V01

    SUPRANITE ® V01 is made of chemically and thermally exfoliated vermiculite, that gives SUPRANITE ® V01 high-temperature properties comparable to those of compressed asbestos gaskets. It is reinforced by a ultra-thin stainless steel core.

    • SUPRANITE ® V01, made of chemically and thermally exfoliated vermiculite, provides a very good seal up to 800°C continuous.
    • SUPRANITE ® V01 is not subject to the oxidation problems encountered by graphite at elevated temperature.
    • The exfoliated structure of SUPRANITE ® V01 maintain its good sealing properties at high temperatures, unlike conventional mica based gaskets, which contain a large fraction of elastomer binder.
    • SUPRANITE ® V01 has a very broad chemical compatibility spectrum.
  • SUPRANITE PG VF

    SUPRANITE PG VF

    SUPRANITE ® PG VF is made of chemically and thermally exfoliated vermiculite reinforced by synthetic fibres, in a matrix that gives SUPRANITE ® PG VF higher mechanical properties than conventional elastomeric fibers gaskets at high temperature.

    • Performs beyond elastomeric-fiber gaskets, thanks to the chemically and thermally exfoliated vermiculite.
    • Broad chemical compatibility range.
    • No loss of mass or oxidation at high temperature.
    • Easy to cut and handle because there are no metallic reinforcements.

FIBERS GASKETSFIBERS GASKETS

  • SUPRANITE PGX 30 SRN

    SUPRANITE PGX 30 SRN

    SUPRANITE ® PGX30 SRN comprises an homogeneous mixture of silicate fibres reinforced by synthetic fibres through an «X» - structured mesh that contributes multi-directional high mechanical strength.

    • SUPRANITE ® PGX 30 SRN has a specific structure that gives it great mechanical resistance under high compressive stresses.
    • SUPRANITE ® PGX 30 SRN has an anti-stick coating that facilitates maintenance operations.
    • SUPRANITE ® PGX 30 SRN provides a better seal than conventional fibre-elastomer gaskets.
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