High Performance Spring Energised Seals Materials Approved to NORSOK M710
23 November 2005
Saint-Gobain Performance Plastics OmniSeal materials qualifies to NORSOK M710.The OmniSeal® Spring Energised PTFE seal is well known in the Oil & Gas market for its extreme reliability; providing sealing solutions for applications in the harshest environments in Oil & Gas exploration & production.
OmniSeal® seals are successfully used in safety-critical applications, in ball valves as double piston effect (DPE) seals in valve seats and to reduce fugitive emissions as environmental valve stem seals. Other applications include valve body/bonnet seals, butterfly valve seats, down-hole tools, cryogenic swivel seals and other critical sub-sea equipment.
Driven by market requirements for high performance polymer materials, highest quality and ultra reliable products for critical equipment needed for projects such as the Ormen Lange Field and Kashagan Field Development, Saint-Gobain Performance Plastics qualified its proven Fluoroloy materials® to NORSOK M710 specification.
NORSOK M710 describes the required physical tests for sealing materials. Several of these tests were carried out in our own laboratory, others in Saint-Gobain's fully equipped lab in Northboro, USA and the aging test were carried out by M.E.R.L. in the UK.
- Softening point: Outside lab
- Specific gravity: S-G Kontich
- Hardness: S-G Kontich
- Tensile properties and elongation: S-G Kontich
- Compression properties: S-G Northboro
- Impact strength: Outside lab
- Glass transition temperature: S-G Kontich
- Creep under tensile and compression load: S-G Northboro
- Aging tests: M.E.R.L
Saint-Gobain engineers worked closely with specialist outside laboratories to qualify the materials. The aging test in the qualification process, where Fluoroloy® materials were subjected to extreme temperatures and high percentages of hydrogen sulphide (H2S), gave new insights into the properties of these high performance PTFE compounds.All Saint-Gobain High Performance Fluoroloy materials passed the qualification successfully. The metal energisers are NACE approved materials for use in sour gas conditions.
