PERFORMANCE PLASTICS

A Worldwide Leader in High Performance Sealing OmniSeal®, a recognized name in sealing for over fifty years. First as Fluorocarbon then Furon and now as Saint-Gobain Performance Plastics (SGPPL). OmniSeals, have been used in a multitude of applications where durability, resistance to chemicals and operation at temperature extremes is crucial. Our spring energised seal designs are widely recognized throughout the industry. OmniSeal high-performance spring energised seals reduce friction, operate in harsh environments, reduce downtime and extend equipment service life. Compagnie de Saint-Gobain...

OmniSeal ® Seals in the Marketplace SGPPL’s proprietary blends of engineered polymers can be coupled with many spring geometries to offer a superior seal that operates in a variety of different applications in a range of industries, including: • Aircraft, Aerospace • Transportation (Heavy Truck, Automotive, Marine, Rail) • Construction Equipment • High Performance Racing • Medical Instrumentation • Liquid Chromatography • Semiconductor Manufacturing Equipment • Petroleum and Chemical Process Equipment • Pumps, Valves, Compressors The acceptance of OmniSeal seals across this wide range of applications...

Technology High Performance Seals Backed by a proud heritage of product innovation, technological expertise and market leadership, Saint-Gobain Performance Plastics is dedicated to working with our customers to solve today’s tough seal application issues and the challenges that lie ahead. OmniSeal seals are manufactured throughout the world, with sites located in North America and South America, Europe and Asia. The seals were originally designed and developed in Southern California. The current facilities located in Garden Grove, California, Kontich in Belgium and Suwa Japan design and manufacture...

How OmniSeal seals Work OmniSeal Components PTFE JACKET METAL SPRING ENERGIZER The OmniSeal is a spring actuated, pressure assisted sealing device consisting of a PTFE (or other polymer) jacket, partially encapsulating a corrosion resistant metal spring energiser. When the OmniSeal is seated in the gland, the spring is under compression, forcing the jacket lips against the gland walls thereby creating a leak-tight seal. OmniSeal jackets are precision machined from PTFE, filled PTFE composites and other high performance polymers. OmniSeal seals with PTFE jackets are serviceable at temperatures...

Radial Seals - Seal Function & Motion Radial Seals in Static Service While most of the OmniSeal designs can be used as static radial seals, the OmniSeal 103A, Page 16, is generally recommended for this service. Its moderate to high spring load provides positive sealing under most static sealing conditions. Radial Seals in Reciprocating Motion Reciprocating radial seals are the most common OmniSeal applications. For rod and piston sealing and similar applications, the OmniSeal 400A, Page 18, is recommended for general purpose sealing at low to moderate pressures. This series has a low load, high...

Face Seals-Seal Function and Motion Face Seals in Static Service Face Seals in Dynamic Service The OmniSeal 103A, face seal is generally the first choice for most static face seal applications. This series utilizes a moderate to high load spring, and is capable of sealing effectively over a wide temperature and pressure range. OmniSeal 400A, is recommended for rotary face seal applications at slow to moderate rotary speeds. Low spring loading keeps friction to a minimum. For ultra-low friction or high surface speed contact the factory. Because of its very high spring loading, the OmniSeal RACO®...

Friction and Rotary Motion Friction calculated using the charts and formulas on this page. Lubrication provided by the media may produce lower friction results. with lower or higher loads than shown on this page. Also, special springs can be developed when required. It is difficult to predict how the running and break-out friction values will differ without testing under actual existing conditions. SGPPL manufacturers a variety of springs Friction, a measurement of the resistance to sliding between a seal and hardware surfaces, is directly related to seal material coefficient of friction and...

Temperature, Pressure and Extrusion Gap Maximum Recommended Extrusion Gap HT/HP Sealing When sealing high pressures and/or high temperatures, the size of the extrusion gap behind the seal becomes critical. This extrusion gap is the clearance between the hardware members. Hardware designs without bearing or centering devices must consider the diametral clearance as the maximum extrusion gap. The combination of high pressures and/or high temperatures, excessive clearance can allow the seal jacket to extrude into the gap causing premature failure. (OmniSeal 103A Shown for Illustration Only) 0,07...

Hardware, Finish & Hardness Dynamic Hardware Surfaces seal life. Dynamic surfaces with relatively rough finishes wear the jacket material too rapidly. Extremely smooth dynamic surfaces result in insufficient material transfer to form a thin film. The graph below illustrates the effect of surface finish on seal wear. The finish of the surface over which the OmniSeal must slide greatly influences the relative wear of the cover material. Mating surfaces that are too rough can create leak paths and be abrasive to the seal. Static Hardware Surfaces In most static sealing applications, better overall...

OmniSeal Back-Up Rings Back-Up Rings are used when sealing fluids or gases at high temperature and high pressure combinations. Careful attention is also required at high pressure and high speed reciprocation conditions. If the application parameters fall outside the limits set in the tables on page 10, we strongly advice to contact our technical support for further assistance. Extrusion is a function off a) the size of the extrusion gap b) the temperature c) the system pressure d) surface speed (reciprocating movements) Under pressure the PTFE tends to flow into the extrusion gap. Dynamic reciprocating...