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The metal ring pad is made of metal material by forging and heat treatment and machining into cross section shape is the entity of RX type metal gasket, have radial since the tight sealing effect, is a kind of special metal octagonal ring gasket, its action principle is cushion for leaning on and flange type ladder groove (mainly the lateral) out of contact, and through the pressure sealing function to form.
RX metal ring gasket installed inside a ladder type ring groove on the surface of the flange, when screw down the connecting bolt, the axial compression and up and down the ladder type slot 1, produce plastic deformation, forming a ring seal belt, establish the initial seal After booster, under the action of medium pressure, make the ring gasket radial expansion. Gasket with trapezoidal groove cant post more tightly, self-tightening efetc. Medium pressure increases, however, also can make the flange and the connecting bolt deformation, caused by a relative separation between the sealing surface, gasket seal than relative decline, RX type metal ring gasket belongs to pressure from the ring gasket. Some size of the RX type ring gasket should be well versed in ring cross section pressure hole.
RX type metal ring gasket performance characteristics：
1. high temperature resistant, resistant to high pressure, suitable for high pressure flange;
2. reliable sealing persistent;
3. to adapt to the working conditions of pressure and temperature fluctuations.
