This product is used to modulate the product's length between flange and the pipe while installing. Screw down bolt, and then adjust the nuts so that the pipe can expand and contract freely within the scope. Fix the scope to guarantee fail safe operation of the pipe. Limited Telescopic Joint is formed by adding a limit device to the basic sleeve Type Expansion Joint and locked at maximum expansion by double nut. The pipeline can thus freely expand in certain limit. When maximum valve is reached, it will be limited and effectively assure the pipeline working safety. Limited expansion joint is especially suitable for pipeline connection where vibration occur, where taper connection requested and bend pipeline connection. Size Nominal Diameter DN External diameter of pipe DW Length Flange connecting dimension 0.6Mpa 1.0Mpa L 1 D D1 n-Th b D D1 n-Th b 65 76 400 400 160 130 4-M12 16 185 145 4-M16 20 80 89 190 150 4-M16 18 200 160 8-M16 22 100 114 210 170 220 180 24 125 140 240 200 8-M16 20 250 210 26 150 168 265 225 285 240 8-M20 200 219 320 280 22 340 295 28   250 273 375 335 12-M16 24 395 350 12-M20   300 32S 420 50 440 395 12-M20 24 445 400 350 377 490 445 26 505 460 16-M20 30 400 426 540 495 12-M20 28 565 515 16-M24 32   Annotation: The range of the nominal diameter varies from 65mm to 3200mm according to your requirements.