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What Are Jackscrews And When Are They Required? |
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Answer» Used in FLANGE joint assemblies which often require frequent separation includes orifice plate, spectacle plates, spacers, screens, and drop out spools shall be provided with jack screw to facility separation and opening for the maintenance. When flange SEPARATIONS are used, JACKSCREWS are not REQUIRED. Jackscrews shall be installed to be accessible from both sides of the pipe. For orifice flanges, jack screws shall be installed at 3 & 9 o’ clock POSITIONS.(JERES-L-310 Para 17.7). Used in flange joint assemblies which often require frequent separation includes orifice plate, spectacle plates, spacers, screens, and drop out spools shall be provided with jack screw to facility separation and opening for the maintenance. When flange separations are used, jackscrews are not required. Jackscrews shall be installed to be accessible from both sides of the pipe. For orifice flanges, jack screws shall be installed at 3 & 9 o’ clock positions.(JERES-L-310 Para 17.7). |
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