PTFE Bellows Expansion Joint

PTFE bellows expansion joint is a compensation element, mainly used to compensate for the axial displacement of the pipeline and a small amount of lateral displacement, shock and noise absorption, with the advantages of simple design, easy installation, low cost. It is widely used in electric power, petroleum, chemical, transportation and atomic energy industry and other fields.

DN (mm)	bellows		compensation dosage			stiffness			max size of radial direction shape Bmm	total length L (mm)		product type
	active area A cm²	corrugation number n	axial direction X₀ mm	lateral direction Yo (mm)	angular direction θ± (°)	axial direction N/mm	lateral direction N/mm	angular direction Nm/ (°)		connection type
	active area A cm²	corrugation number n	axial direction X₀ mm	lateral direction Yo (mm)	angular direction θ± (°)	axial direction N/mm	lateral direction N/mm	angular direction Nm/ (°)		adapter pipe J	flange F
corrugated compensator:design pressure Pd = 1.0Mpa(10Kgf/ cm²)fatigue life【 N 】=1000times design temperature t = 20℃
40	38	4	5.5	1.2	4	282	1214	14	145	230	240	TB
40	38	8	1.1	5	8	141	135	6.5	145	300	310
50	56	4	7.5	1.5	4	388	1790	20	157	250	260
50	56	8	15	6.5	8	194	189	7	157	340	350
65	79	4	9	1.5	4	422	2109	24	186	250	260
65	79	8	18	6.5	8	211	217	9	186	360	370
80	138	4	11	2	3	658	2715	28	219	354	270
80	138	8	22	8	6	329	320	13	219	364	380
100	155	4	12	2.3	3	698	3226	30	283	284	300
100	155	8	24	9.1	6	349	403	15	283	364	380
150	300	4	11	1.5	3	1009	9029	84	289	284	300
150	300	8	22	6.1	6	504	1129	42	289	364	380
200	535	4	17	2.6	3	1493	10592	222	389	380	400
200	535	8	34	10	6	746	1324	111	389	500	520
250	779	4	16	2.1	3	1850	19116	400	443	3H0	400
250	779	8	33	8.3	6	925	2390	200	443	500	520
300	1075	4	21	2.8	3	1536	15211	459	495	426	450
300	1075	8	42	11	6	768	1901	229	495	570	594
350	1269	4	21	5.9	3	1682	19653	593	577	426	450
350	1269	8	42	12	6	841	2457	296	577	570	594
400	1619	4	20	22	2.6	1917	28582	862	626	426	450
	1619	8	41	8.6	5	958	3573	431	626	570	594
450	2003	4	20	1.9	2.3	2148	39632	1195	678	426	450
450	2003	8	40	7.7	4.6	1074	4954	598	678	570	594
500	2428	4	20	1.7	2	2380	53229	1605	729	426	450
500	2428	8	40	6.9	4	1190	6654	803	729	570	594
600	3473	4	36	4.3	3	1561	17977	1506	830	576	600
600	3473	8	71	17	6	781	2247	753	830	816	840

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