AUTOMOTIVE  I AEROSPACE  I FOOD & BEVERAGE I  FLUID TECHNOLOGIES  I MOBILE MACHINERY

SEALING SYSTEMS 6.2 Installation dimensions - Hydraulic with rotating movements - Rectangular groove with radial deformation..16

QUAD'RINGS - X'RINGS Site n°1: Compression Molding – Injection Molding – Water Jet Cutting – Finition – Quality Control – Logistics Site N°2: Administrative Area – Research & Development – Machining – Tooling Since 1981, FRANCE JOINT – SEALING SYSTEMS has been designing, manufacturing and distributing seals and precision rubber parts for its customers for whom quality is a determining factor. Faced with tough competition among the big decisionmakers of the industrial world, FRANCE JOINT has responded with innovation, research and development, experience in Best-Cost manufacturing, and a consistently...

QUAD'RINGS - X'RINGS RESEARCH & DEVELOPMENT Innovation, reliability, safety, minimization of risk: your expectations are our daily concern. To get from the idea to the finished product demands firm managerial control over a wide range of projects in addition to expertise in manufacturing. FRANCE JOINT’s contributors, who are as much inventors as technicians, get the best of fully automated, state-of-the-art technology that takes them from drawing-board to prototype and finally to assembly line. From writing specifications to putting on a major technical event through designing (3D Solidwrks software)...

O X’RINGS 1. Description X'Rings are four-lobed double-acting seals used in static and dynamic applications. Usually made from EPDM, FKM, NBR, VMQ and other types of materials, they provide a better sealing and lower friction than conventional O'Rings. 2. Materials The table below provides an overview of the different rubber families. QUALITY & EXPERTISE FOR YOUR SEALING NEEDS

QUAD'RINGS - X'RINGS }} ACM (Polyacrylate) Polymers containing ethyl acrylate (or butyl acrylate) have a small amount of monomer, which is necessary for crosslinking; ACM is a material with better heat resistance than NBR. It is often used for automatic gearboxes. Chemical resistance Mineral oils (motor oils, gear box oils, ATF oils) Atmospheric and ozone agents Compatibility issue Glycol-based brake fluids (Dot 3 & 4) Aromatic and chlorinated hydrocarbons Water and steam Acids, alkalis and amines Temperature range -25°C / +150°C (short-term peak at +160°C) -35°C / +150°C with particular ACMs...

FFKM (perfluorinated rubber) FFKM has the best resistance to high temperatures and an excellent chemical inertia. This FKM-based rubber is very often used for high-temperature hydraulic and pneumatic systems, industrial valves, injection/fuel systems, motor seals and high-vacuum systems. Resistance to chemicals Aliphatic and aromatic hydrocarbons Polar solvents (ketones, esters and ethers) Organic and inorganic acids Water and steam High-vacuum system FKM (fluorinated rubber) Depending on their structure and fluorine content, fluoroelastomers can vary in terms of chemical resistance and resistance...

QUAD'RINGS - X'RINGS }} HNBR (Hydrogenated Nitrile Butadiene Rubber) This HNBR-based elastomer is obtained through selective hydrogenation of the NBR's butadiene groups. It is commonly used for power-assisted steering and for air conditioning. Chemical resistance Aliphatic hydrocarbons Mineral and vegetable oils and greases Fire-resistant fluids (HFA, HFB and HFC) Diluted acids, saline solutions and bases for operation at an average temperature Water and steam up to +150°C Atmospheric and ozone agents Compatibility issue Chlorinated hydrocarbons Polar solvents (ketones, esters and ethers) Strong...

QUAD'RINGS - X'RINGS CHEMICAL COMPATIBILITY A "Chemical compatibility guide" catalogue can be downloaded from our website: www.francejoint.com You can also use our online "Chemical compatibility" tool free of charge. These two tools enable you to measure the behaviour of our materials that come into contact with the majority of existing fluids. The data displayed is the result of rigorous testing at the ambient temperature and takes previous publications into consideration. Test results are not fully representative because of the specific features of your application. The tests performed actually...

QUAD'RINGS - X'RINGS b. Compression Set (CS) The Compression Set (CS) is a method that measures the ability of rubbers to maintain their elastic properties at specific temperatures following prolonged compression under consistent deformation, in line with standards ISO 815 / ASTM D 395. WHERE: •  0: initial thickness of the X'Ring e •  1: thickness under compression with specified conditions e (temperature, fluid, duration, deformation rate) •  2: thickness after tension release e e2 = e0; the material has perfect elasticity e2 = e1; the material has a complete permanent plastic deformation The...

QUAD'RINGS - X'RINGS e. Volume change Chemical resistance is a decisive criteria when it comes to selecting an appropriate material. That's why it is essential to be aware of the liquids or gases used in the application, as this will affect the operation of the material as well as the service temperature. Moreover, hardening or softening, loss of stiffness or elasticity, loss of tension, deformation relaxation and changes in volume through swelling or shrinkage can be ascertained using the volume change test, in line with standards ISO 1817 / ASTM D 471. These tests are carried out either in...

QUAD'RINGS - X'RINGS

QUAD'RINGS - X'RINGS Static sealing I NSTALLATION DIMENSIONS - RECTANGULAR GROOVE WITH RADIAL DEFORMATION The X'Ring used in static applications must be fitted in a rectangular groove with a depth and width defined according to the X'Ring ring section, in line with the table below. I NSTALLATION DIMENSIONS - RECTANGULAR GROOVE WITH AXIAL DEFORMATION The X'Ring ensures the sealing of flanges or covers that are subject to axial deformation. The groove dimensions are determined according to the X'Ring thickness. PRESSURE FROM INSIDE L4 0/+0,20 PRESSURE FROM OUTSIDE L4 0/+0,20