Technical Parameters for Four-Ball Rubber Joint
DN		FF Length (mm)	Axis displacement		Radial displacement	Deflection displacement
mm	inch	FF Length (mm)	Extension	Compression	Radial displacement	Deflection displacement
300	12″	500	100	130	80	±12°
350	14″	500	100	130	80	±12°
400	16″	500	100	130	80	±12°
450	18″	600	120	160	85	±12°
500	20″	600	120	160	85	±12°
600	24″	600	120	160	85	±12°
700	28″	600	120	160	85	±12°
800	32″	600	120	160	85	±12°
900	36″	600	120	160	85	±12°
1000	40″	600	140	180	95	±12°
1200	48″	600	140	180	95	±10°
1400	56″	650	140	180	95	±10°
1600	64″	650	140	180	95	±10°
1800	72″	650	140	180	95	±10°
2000	80″	650	170	200	100	±10°
2200	80″	700	170	200	100	±10°
2400	96″	700	170	200	100	±10°
2600	104″	700	170	200	100	±10°
2800	112″	700	170	200	100	±10°
3000	120″	700	170	200	100	±10°

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rubber bellow expansion joint