Transcription of Ring Joints RTJ
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Ring Joints RTJ
1 ring - Joints RTJ1 EDGaskets Packings Expansion Joints Rubber and Plastic PartsRing- Joints RTJRing- joint gaskets are manufactured from a metallic mate-rial. The demands on the geometrical accuracy and thesurface quality are therefore high. This concerns both thegasket and the sealing section of the necessary surface quality depends substantial on theBrinell hardness of the gasket material. We have found thatthe relationRZ[mm] < 300/HBgives a useful distinction is made between two kinds of ring - joint gas-kets and two different calculation methods can be derivedthereof:1. RTJ gaskets with a snuggle fitting radius (figure 1)a) The convex octagonal RTJ gaskets, profile AR 13, inwhich the cambered cone case surfaces of the gasketare pressed against the bevel cone case surfaces of thegroove during ) The oval ring - joint gasket, our profile A11, in which theball sealing surfaces are pressed against the cone this types the projection of the sealing surface width bDresults from the angle a, which the sealing surface againstthe force direction (pipe axis) forms as a function of the E-modulus ED and the number of contacting surfaces nbD = b1 + b2 = 100 r n sin.
3 Ring-Joint Gaskets, Type R Ring-Joints RTJ Ring-joint gaskets, type R, dimensions according to ASME B16.20, API Std 6 A for flanges to ASME B16.5 and ASME B16.47, series A
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