Smartfield Industrial Equipment (Shanghai) Co.,Ltd.

Couplings / accessories

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SFF820 02
Single Hinged Expansion Joint

The expansion joint is made of a metal bellow connected by metal pipes with single hing at two ends. It can absorb angular movement in one plane displacement only. Two to three EJs should be used in order to offset the displacement. The hing has the ability to bear internal pressure thrust.

nominal diameter DN mm	wave No.s n	axial		torque	D (mm)	L
nominal diameter DN mm	wave No.s n	compensa- tion (o)	stiffness Kx (N /o)	torque	D (mm)	pipe (mm)	flange (mm)
design pressurePd=1.6MPa，fatigue life [N]=1000，design temp. t=20℃
200	4	2.5	225	205.3	560	650	670
250		2.5	400	357.4	620	650	674
300		2.5	922	666.2	710	750	774
350		2.2	1379	863.2	760
400		1.9	1942	1345.9	810
450		1.7	2671	1645.6	860	850	874
500		1.6	3545	2386.1	930	850	874
600		2.2	3150	3949	1090	1000	1024
700		2.2	3507	5704.7	1190	1100	1124
800		1.5	4917	7282	1290	1100	1124
900		1.8	6687	10162.3	1410	1200	1224
1000		1.6	10618	13971.3	1550	1200	1224
1100		1.6	13796	19986.1	1690	1300	1424
1200		1.4	17557	23489.3	1790	1400	1424