Opisy

• O-ring Sealing Principles O-rings are bi-directional seals, circular in form and move section O-rings are commonly made of an elastomeric material, but may be fabricated from different materials comparable to PTFE or metal An O-ring seals during the deformation of the seal material by way of set up and media pressure to shut off the space between mating ingredients Higher system pressures may cause deformation through the gap, referred to as extrusion, resulting in seal failure Choosing a more durable seal materials or putting in back-up rings to assist the O-ring may perhaps alleviate this situation Method of operation O-Rings are double-acting sealingelements The inital squeeze,which acts in aradialora xial path depending on the installation, gives the O-Ring its initial sealing capability forces are superimposed by the components stress to create the full sealing power which will increase because the systeme strain increases (Figure 2) pressure, the O-Ring behaves in asimilar way to a fluid with high floor pressure The stress is transmitted uniformly to all instructions EPDM (Ethylene-Propylene-Diene Monomer O-Ring): EPDM O-ring in auto parts, hygiene supplies, scientific equipment, marine equipment, petroleum equipment, telecommunications equipment, instrumentation, machinery and different industrial fields are widely used Use temperature range: -50 to one hundred fifty °C Application The O-Ring is used predominantly for static sealing applications:- As aradial static seal, e for bushings, covers, pipes, cylinders- As an axial static seal, e for flanges, plates, caps in dynamic applications are commended only for average service circumstances are limited by means of the speed and the pressure opposed to which they are to seal:- Forlow duty sealing of reciprocatingpistons, rods, plungers, and so forth For sealing of slowlypivoting,r otating or spiral movements on shafts, spindles,rotary transmission leadthroughs, and so forth

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