Nuclear Power
The information provided on this website is to be used for customer assistance only and subject to change without notice. Contact Siem Supranite engineering team for technical assistance.
Featured products for Nuclear Power
Supranite NGN 03 AS
Evolution of Supranite NGN 02 AS. Can be delivered in rings, complete packing sets or boxes containing lengths (coils). Developed and qualified to reduce friction on valve stems. PMUC n°17-0393.
Supranite Packing 243 BF AS
Evolution of Supranite Packing 242 CP AS. Used as anti-extrusion top and bottom rings for valve stem sealing set. Developed and qualified to reduce friction on valve stems. PMUC n°17-0388.
Flexitallic Change
Its design is exclusive and provides unrivalled performance. Originally developed in direct response to customers’ long-term heat exchanger sealing problems.
Supranite NGR AS
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 outstanding cohesion. PMUC n°17-0214.
Supranite PG AC
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. PMUC n°17-0156.
Supranite PG XS
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. PMUC n°17-0345.
Supranite Packing 251 VR AS
The reference for PMUC braided packing used in nuclear power control valves. PMUC n°17-0019.
Supranite Packing 242 CP AS
For top and bottom rings for valve stem sealing set. Composed with an expanded graphite tape reinforced with Inconel ®. The reinforced yarns are then braided to produce this packing. PMUC n°17-0170.
Supranite NGN 02 AS
PMUC graphite tape reference. More than 20 years of positive feedbacks and returns of experience obtained from plants. PMUC n°17-0077.
Supranite SL2
Made from compressed expanded graphite packing gasket associated with a steel backing ring. This gasket solves two major problems of valves sealing : valve opening, the need to re-machine the valve and the valve sealing surfaces. PMUC n°17-0266.
Supranite MGM
Made from compressed graphite inserted between inner and outer stainless steel ring. Recommended for all types of application, and especially the most difficult ones. PMUC n°17-0129.
Supranite MG
High Performance Expanded Graphite Gasket. Designed to work under metal / metal contact. PMUC n°17-0200.
Supranite Packing Sets
Packing sets with Supranite NGN 02 AS or Supranite NGN 03 AS rings placed into two anti-extrusion rings in Supranite Packings 242 CP AS or 243 BF AS. Metal insert can be included inside the rings in order to facilitate future extraction. PMUC qualified.
Supranite Packing 602
Made from high-density diagonal braiding of two complementary synthetic yarns : one with high mechanical strength, while the other provides excellent self-lubricating properties and facilitates the dissipation of heat generated by friction. PMUC n°17-0128.
Flexitallic Spiral Wound Gasket Style CGI
Comprises a spiral-wound part with inner and outer rings. Preferred solution for sealing flat and/or raised face flanges. PMUC certified.
Flexitallic Style CG
Consists of a spiral-wound part and an outer ring. The seal is made by the spiral-wound part. The external ring ensures very precise installation. PMUC certified.
Flexitallic Style R
Consists of a spiral-wound metallic strip in a deep «V» with a flexible filler. The inside and outside diameters are reinforced by several wraps of winding without filler, reinforced by a suitable number of spot welds. PMUC certified.
Flexitallic Style RIR
Comprises a spiral-wound part with an inner ring. The inner ring acts as a compression stop. By filling the annular space between the bore of the flange and the inside diameter of the gasket, it reduces the effects of turbulence of the fluids and prevents premature flange erosion. PMUC certified.
Flexitallic Style MRGH
Comprises a serrated metallic core covered with a flexible coating. The profile of the grooves is specially designed according to the coating and your applications.
Flexitallic Style CR – Carrier Ring
The ideal way to improve the reliability of RTJ assemblies with sealing problems.
Flexitallic Style HX-RIR
Consists of an inner ring limiting the compression of the spiral-wound element made of a winding strip with a soft filler achieving the sealing.
Supranite PG AC F
High performing solution compatible with any chemical fluids, including concentrated fluorhydric acid and concentrated nitric acid. PMUC n°17-0217.
Supranite PGX 30 SRN
Comprises an homogeneous mixture of silicate fibres reinforced by synthetic fibres through an «X» – structured mesh that contributes multi-directional high mechanical strength. PMUC n°17-0125.
Supranite Packing V01
Made from chemically and thermically exfoliated vermiculite ribbons reinforced with Inconel ® mesh. This construction allows excellent handling characteristic, minimize extrusion under compressive load and improves blow out resistance.
Supranite Packing 801
Made of long pure amorphous silica filaments that do not loose weight and volume at high temperatures. Made of yarns braided in the mass, giving the product excellent mechanical resistance and ensuring a good seal.
Supranite Packing 530
Consists of very thin filaments of spectroscopically pure PTFE. Features outstanding chemical compatibility as it contains no other lubrification compound (oil,…) than pure PTFE dispersion.
Supranite Packing 601
Made from high-density diagonal braiding of synthetic and silicate yarns with high mechanical resistance. Associated with a chemically inert lubricant impregnated.
Supranite Packing 850
Produced by braiding pure calcium silicate yarn. The absence of an organic support in the production of these yarns results in a much smaller loss of volume at high temperatures than with most other products.
Supramet
Fabric made of silicate fibers treated by a unique compound giving it excellent performance: heat resistance, mechanical strength, and abrasion resistance. PMUC n°05-0026.
Supranite Extractors
Allows and facilitates the extraction of braided packing rings from all type of stuffing boxes.
Training
« State of the art of tightening » Training with rules to follow during assembly and disassembly of bolted assemblies.
