O rings - Import export

PROGRESS SILICONES PRODUCES O-RINGS FOR ALL SECTORS OF INDUSTRY. French and international standards Custom-made O-rings from one-off items to large series. Hardness from 5 to 90 Shore A depending on the material: Silicone FPM / FKM (fluorocarbone) EPDM (ethylene-propylene-diene monomer) NBR (acrylonitrile-butadiene) HNBR (hydrated acrylonitrile butadiene caoutchouc) CR (polychloroprene) We provide materials in various grades by prior request: Contact with food:FDA, BFR Contact with water: KTW, ACS, NFS61, WRAS, W270 Pharmacopoeia: USP class VI, ISO 10993... Implantable < 29 days Aeronautics ROHS REACH Secondary services: Special packaging: blister, kraft paper, etc. Packs for O-rings Personalised labels Please contact our Sales department for further information on our O-rings.

Orings are universal sealing elements used to seal against liquid or gaseous median. They are suitable for static and minor dynamic applications. Orings can be used for radial and axial sealing. The sealing occurs during installation by the radial or axial compression of the crosssection. During operation, the median pressure increases the deformation of the Oring and so increases the sealing effectiveness. For best sealing effectiveness, the Oring should have the largest possible crosssection. During installation the correct groove size, compaction, elongation/compression should be ensured. By static use the compaction should be 15 30% of the crosssection. By dynamic use it should be 10 18% (hydraulic), 4 12% (pneumatic). With regard to the ID, when installed the Oring should be stretched max 6% compressed max 3%

Body, cover and lever: cast iron Inner mechanism: brass Waterproofing: nitrile O-ring Seal: nitrile O-ring, NBR flange O-ring.

Body: cast iron Mechanism: brass Waterproofing: by nitrile O-ring. NBR flange O-ring

Body: cast iron Mechanism: brass Waterproofing: graphite braid and Viton® flange O-ring, PTFE seal as an option (HL_-PTFE) NBR flange O-ring, Viton® or PTFE seal as an option

Body: cast iron Mechanism: brass Waterproofing: braid and Viton® flange O-ring, PTFE seal as an option (FHL_POLY-PTFE)

Body: cast iron Mechanism: brass Waterproofing: braid and Viton® flange O-ring, PTFE seal as an option (FHL_-PTFE)

Body, cover and lever: cast iron Inner mechanism: brass Waterproofing: graphite braid NBR flange O-ring, Viton® or PTFE seal as optional.

Body: cast iron Mechanism: brass Waterproofing: by graphite braid. NBR flange O-ring, Viton® or PTFE seal as an option

Body, cover and lever: cast iron Inner mechanism: brass Braid: PTFE Seal: flange O-ring made of Viton®. Optional PTFE seal (FAT_-PTFE)

Body and cover: GS cast iron Mechanism: brass Lever: grey cast iron (brass as an option). Waterproofing: graphite braid NBR flange O-ring, Viton® or PTFE seal as an option

Self-aligning pads are used to support and clamp unmachined and machined workpieces. They also serve as stops, supports and thrust pads in fixtures and toolmaking. Ball secured against rotation. Form O: The abrasive diamond surface is bonded firmly to the ball. It is ideally suited to supporting smooth or slippery applications with a minimum of clamping pressure. This allows the diamond particles to get a firm grip on a very small area with minimum damage to the surface. The diamond surface offers excellent wear resistance. Form P: The polyurethane surface is vulcanised firmly to the ball. It is abrasion-resistant and does not discolour. It offers optimum protection against damage to delicate surfaces. The pearl-like surface gives a firm grip and allows air to escape so as to prevent any suction effect between the contact surface and the self-aligning pads. Advantages: The built-in O-ring holds the ball in place and keeps dirt and foreign particles out, ensuring uniform movement.

Body tempered, black oxidised. Ball hardened, bright. Inserts: Form C, F hardened, black oxidised. Form M with carbide serrations, black oxidised. Form K white. Form E hardened, bright. Form O diamond impregnated surface comparable to 100 grade abrasive grit. Form P polyurethane surface, hardness 60 Shore. Note: Self-aligning pads are used to support and clamp unmachined and machined workpieces. In addition, they serve as stops, supports and thrust pads in fixtures and toolmaking. The ball can be removed from the housing by applying light pressure to the socket head screw. Ball secured against rotation. Advantages: Highly cost-effective as inserts can be exchanged. The built-in O-ring holds the ball in place and keeps dirt and foreign particles out, ensuring uniform movement. Drawing reference: Form C: flattened steel insert, smooth Form E: flattened stainless steel insert, smooth Form F: gripper face Form K: flattened POM insert, smooth

Brass compression tee fitting Hot forged brass bar body Temperature range 0°C /+ 50°C NBR O-ring seal Brass locking ring

Adapted to high temperatures, PTFE - Polytétrafluoroéthène - is also well known as Teflon. PTFE has good chemical resistance and low friction coefficient. It is used for sealing functions, as membrans, gaskets, O-rings, or for electrical insulation.