•  Product Features

      The difference between gimbals expansion joint from hinged expansion joint is that the former has a common floating gimbals ring with two perpendicular pairs of hinges affixed to it. Gimbals expansion joints can absorb rotation in any plane and a combination of two or three sets should be used to function properly. The common floating gimbals ring , hinges and pins are designed to restrain the thrust of the expansion joint due to initial pressure.

•  Applicable Conditions

Working pressure: 0.1 through 2.5 (MPa)
Working temperature: -20 through 450 (℃)
Service life: 1000 (times)
Flange：GB、ANSI、JIS、DIN etc


• Product Specification

Nominal ID(DN): Φ50 through 6000 (mm)

•  STRUCTURE

• Material

1.Bellow：Stainless steels 304 316L 321 254 309 Inconel625 31803 etc
2.Flange、weld Ends：Carbon steel Stainless steels etc
3.Tie rod Nuts：Carbon steel Stainless steels etc 

• The product code consists of following elements　

•  Guides for expansion Joint installation

1. The expansion joint shall be installed according to the engineering drawing of pipe line and the expansion joint installations
2. In order to insure proper function of any expansion joints, it is necessary that all pipe lines in which expansion joints are located be suitably guided and anchored. The guides and anchors must be installed strictly in accordance to relevant technical documentation. Please refer to the “guideline for installation of Expansion Joints” about the principle of using guides and anchors.
3. Since the bellows used in expansion joints are made of thin stainless steel sheets, special attention shall be paid when transporting, handing and welding to avoid damage of bellows caused by dents, scores, arc strikes and weld spatters.
4. Any foreign laterals in the bellows and pipes shall be removed to ensure the proper function of expansion joints before installation.
5. If the flow direction is specified, be sure to install expansion joint with the proper orientation with the respect of flow direction arrow.
6. No movement of the expansion joint (such as axial compression or extension, lateral offset, or rotation) due to piping misalignment shall be imposed during installation so as to ensure proper function of the bellows.

• Date sheet

产品性能参数
PN MPa	Product type	Dia. DN （mm）	Overall Length （mm）	Angular rotation αo(o)	Angular spring rate kαo N.m／(o)	Max Dia B(mm)	End pipe doxS(mm)
0.6	6WJBl00x4—J	100	600	±8.3	16	400	φ108x4.5
	6WJBl25x4—J	125	600	±7.1	27	440	φ133x4.5
	6WJBl50x4—J	150	600	±6.3	43	460	φ159x4.5
	6WJB200x4—J	200	600	±7.2	100	550	φ219x6
	6WJB250x4—J	250	600	±6.1	177	660	φ273x9
	6WJB300x4—J	300	650	±6.5	208	700	φ325x9
	6WJB350x4—J	350	650	±5.8	309	750	φ377x10
	6WJB400x4—J	400	650	±5.4	432	820	φ426x10
	6WJB450x4—J	450	750	±5.0	593	870	φ478x10
	6WJB500x4—J	500	750	±4.6	784	950	φ529x10
	6WJB600x4—J	600	850	±4.0	778	1070	φ630x10
	6WJB700x4—J	700	850	±4.6	1077	1190	φ720x10
	6WJB800x4—J	800	900	±4.0	1510	1290	φ820x10
	6WJB900x4—J	900	900	±3.6	2054	1450	φ920x10
	6WJBl000x4—J	1000	1000	±3.4	4040	1680	φ1020x10
1.0	10WJBl00x4—J	100	600	±7.0	27	400	φ108x4.5
	10WJBl25x4—J	125	600	±6.1	46	440	φ133x4.5
	10WJBl50x4—J	150	600	±5.4	74	460	φ159x4.5
	10WJB200x4—J	200	650	±4.0	225	560	φ219x6
	10WJB250x4—J	250	650	±4.0	400	650	φ273x9
	10WJB300x4—J	300	650	±4.2	478	700	φ325x9
	10WJB350x4—J	350	700	±3.8	714	760	φ377x10
	10WJB400x4—J	400	700	±3.4	1003	870	φ426x10
	10WJB450x4—J	450	750	±3.2	1378	970	φ478x10
	10WJB500x4—J	500	750	±3.0	1827	1000	φ529x10
	10WJB600x4—J	600	900	±4.0	2986	1100	φ630x10
	10WJBK700x4—J	700	950	±4.0	1928	1230	φ720x10
	10WJBK800x4—J	800	1000	±3.6	2661	1360	φ820x10
	10WJBK900x4—J	900	1000	±3.2	3560	1600	φ920x10
	10WJBKl000x4—J	1000	1100	±2.8	10463	1750	φ1020x10
1.6	16WJBl00x4—J	100	600	±5.9	52	410	φ108x4.5
	16WJBl25x4—J	125	600	±5.1	89	440	φ133x4.5
	16WJBl50x4—J	150	600	±4‘6	142	460	φ159x4.5
	16WJB200x4—J	200	650	±3.5	225	560	φ219x6
	16WJB250x4—J	250	650	±3.5	400	710	φ273x9
	16WJB300x4—J	300	750	±3.5	922	810	φ325x9
	16WJB350x4—J	350	750	±3.1	1379	900	φ377x10
	16WJB400x4—J	400	750	±2.9	1942	980	φ426x10
	16WJB450x4—J	450	850	±2.7	2671	1150	φ478x10
	16WJB500x4—J	500	850	±2.6	3545	1280	φ529x10
	16WJB600x4—J	600	1000	±3.2	3150	1350	φ630x10
	16WJBK700x4—J	700	1100	±3.2	3507	1400	φ720x10
	16WJBK800x4—J	800	1100	±2.5	4917	1500	φ820x10
	16WJBK900x4—J	900	1200	±2.8	6687	1730	φ920x10
	16WJBKl000x4—J	1000	1200	±2.6	10618	2000	φ1020x10