64kB - Oil-Seals

Special Seal DesignsDesign CapabilitiesFor more than 30 years SGPPL hasdedicated its engineering efforts tosolving difficult and unique sealingproblems. With each challenge wegained greater insight into thescience of specialized sealing.Today, aided by advanced 3-Dmodeling software and the latestvisualizing innovations, our teamof skilled design engineers isexploring the next generation ofsealing applications. Utilization ofFinite Element Analysis (FEA) as aviable design and production toolfacilitates higher productivity,design confidence, reduction in testingtime and resultant cost savings.Finite Element Analysis stress plot simulatingseal jacket deflection.Anti-Blowout SealThis unique design has been used inthe valve industry for over 40 years.In applications requiring the rod todisengage from the seal, theanti-blowout design prevents thedynamic sealing lip from deformingunder pressure.Integral Piston SealFor small diameter applications atmoderate pressures, the integralpiston seal is an innovative approachto reducing the number of precisionmachined metal parts and components.In addition to being easy toassemble, this design serves as a sealand as a guide bearing.Anti-blowout sealDiaphragm SealsThis design combines a flexible diskand static face seal in a single unit.Diaphragm seals offer chemicalequipment designers a simple yetadvanced method for handlingcorrosive fluids in actuating valvesand small metering pumps.Integral piston sealMachined Spring Face SealThe machined spring seal is a solidring of metal covered by a thin PTFEjacket. The solid spring is impermeableto light gases like hydrogen andhelium, and provides extremely lowleak rate sealing. It is also an excellentface seal for sealing hard vacuums.Diaphragm sealsMachined spring face seal28 www.omniseal.com +32 3 4582828

Special Seal DesignsBelleville Spring SealsFace seals energised with bellevillewashers provide high deflectionwithout risk of the spring collapsing.Another advantage of bellevilles isthat they can be manufactured insmaller diameters than most springenergisedseals.Belleville spring sealsBellevile spring sealBi-Directional SealsThis versatile design combines twoseals and a guide bearing into aone-piece component. Thebi-directional seal is found in moderatetemperature/pressure applicationswhere simple assembly and quickreplacement are required. Whendesigned without an inside diameter italso serves as a floating piston.Bi-directional sealsBi-directional sealsSanitary SealsThe JS design shield thespring from the media to prevententrapment in the spring and alloweasier cleaning. Excellent in foodfilling and other dispensingequipment.JS sealSanitary seals+32 3 4582828 www.omniseal.com 29

Special Seal DesignsOmniGasketOmniGaskets are spring energisedface seals retained in a metal platedesigned to customer specifications.They offer the advantages of a readymadeseal groove (saving hardwaredesign and machining cost), and easychangeout of the seals in the field.These are two reasons whyOmniGaskets are gaining wideacceptance in gas turbine engine andaerospace hydraulic applications.OmniGasketOmniGasketFormed SealsFormed seals are a unique specialtysealing product. SGPPL has theability to manufacture most of themajor seal cross sections in specialshapes to fit the customer’s hardware.Successful applications of formedseals include aerospace access doorsand liquid heat exchangers.Formed sealsHigh Pressure Seals withBack-Up RingsA number of design options areavailable for high-pressure sealingproblems. Back-up rings can beconfigured into most seal types toprevent extrusion of the jacketmaterial. Pressure actuated back-uprings are often recommended forclosing multiple gaps or for dealingwith hardware sideloads.High pressure sealsHigh pressure seals with back-up rings30 www.omniseal.com +32 3 4582828