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  • Sorting out static seals
    for static sealing the face of a gasket. Creating a face seal is not terribly complicated. In most sealing systems, the objective is to prevent fluid from leaking from high to low-pressure regions through a gap. Static seals are typically preloaded to help accomplish this task. A seal whose height exceeds
  • Intro to Plastic Valves: Seals
    An O-ring is a round elastomeric ring. O-rings are ideally suited to be a compressed, static seal between non moving parts. O-rings can be used as a face seal on a valve, and used on rotating shafts. Use of o-rings on linear moving shafts is sometimes not recommended, due to the fact
  • How the Static O-Ring Seal Works
    , the O-ring is squeezed between the O-ring groove and the mating surface. An elastomeric O-ring will resist this squeeze or deformation and by attempting to return to its original shape will exert a force on the mating surfaces. This produces a seal in the areas where the O-ring contacts the mating
  • Predicting Seal Life with FEA
    and users alike have been searching for their industrial Holy Grail a method for predicting how long seals will last in service. Traditional methods for evaluating an elastomer's potential as a static or dynamic seal use ASTM or other standard immersion tests. These tests involve immersing the material
  • Intro and Compression Seals
    . In struggling with these design factors, many OEM designers use the seal manufacturers' expertise. Compression seals come in a variety of shapes and are characterized by the high unit load exhibited between seal and walls. These are generally the seals of choice in static sealing applications, which
  • Vertical Form Fill and Seal Machines Application Note
    Problem: High static charges are generated when packaging film is fed from a wind off roll. The static charge attracts powder and lightweight dust from the filling products on to the internal film surface. In particular, contaminants get into the seal which prevents effective sealing
  • Electronic Enclosures - Closing the Door on Sealing Problems
    Some manufacturers of electronic cabinets use off-the-shelf weatherstripping to seal gaps between the housing and door. Often, these weatherstrip materials are just fillers that form a static seal. They're not meant for dynamic sealing, and demonstrate poor compression set recovery
  • Seal-less Regenerative Turbine Vane Pump Resolves Volatile Situation (World Pumps : June 1999)
    the highly volatile liquid fluorocarbons, as well as function to off-load the final product without cavitation. The process also required a pump capable of reliable operation under 2 ft of static NPSH while accommodating changes in line pressures up to 100 psi (6.9 bar). Additionally, the pump had
  • Optimally Transferred
    of application ranging from machine and plant engineering to apparatus engineering depending on the operating conditions with liquid or even gaseous fluids. There are seals which are subjected to static loading only, such as the proven gland seals, mechanical seals as well as rotary shaft seals, cylinder
  • Magnetic fluids tackle tough sealing jobs
    in the gaps between projections and the inner bearing ring. Magnetic-fluid seals for static applications retain

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