Nominal diameter	External diameter	External dimension			N – Th.
		Length		D	0.25 – 1.6Mpa	2.5 – 64Mpa
		L	L
65	76	180	208	155	4 – M12	4 – M12
80	89			165
100	108			195
100	114			195
125	133			225
125	140			225		4 – M16
150	159		220	255	4 – M16	6 – M16
150	168			255
200	219			310
225	245			335
250	273		223	375	6 – M20	8 – M20
300	325	220	273	440		10 – M20
350	355			490	8 – M20
350	377			490
400	406			540
400	426			540
450	457			590	10 – M20	12 – M20
450	480			590
500	508			645
500	530			645
600	610			750
600	630			750
700	720			855	12 – M20	14 – M20
800	820	290	355	970	12 – M24	16 – M24
900	920			1070	14 – M24	18 – M24
1000	1020			1170	14 – M24	18 – M24
1200	1220			1365	16 – M24	20 – M24
1400	1420		377	1590	18 – M27	24 – M27
1500	1520			1690	18 – M27	24 – M27
1600	1620			1795	20 – M27	28 – M27
1800	1820			2000	22 – M27	30 – M30
2000	2020			2200	24 – M27	32 – M30
2200	2220		400	2420	26 – M30
2400	2420			2635	28 – M30
2600	2620	400		2835	30 – M30
2800	2820			3040	32 – M33
3000	3020			3240	34 – M33
3200	3220			3440	36 – M33
3400	3420		490	3640	38 – M33
3600	3620			3860	40 – M33
3800	3820		500	4080	40 – M36
4000	4020			4300	42 – M36

No.	Name	Quantity	Material
1	Cover	2	QT400 – 15、Q235A、ZG230 – 450、1Cr13、20
2	Sleeve	1	Q235A、20、16Mn、1Cr18Ni9Ti
3	Gasket	2	NBR、CR、EPDM、NR
4	Bolt	n	Q235A、35、1Cr18Ni9Ti
5	Nut	n	Q235A、20、1Cr18Ni9Ti

This metal expansion joint is designed to provide flexibility and vibration absorption in piping systems. Its rugged construction makes it ideal for use in industrial, commercial, and residential applications. It features a strong stainless steel bellows that can be adjusted to accommodate different pipe sizes and shapes. The joints are also fully sealed so they can withstand high temperatures and pressures without leaking or suffering from corrosion. This product is available in several sizes and configurations to meet the needs of any project requirements. SSJB Metal Expansion Joint, also called flexible coupling, flexible pipe coupling, slip on coupling, mechanical coupling, dresser coupling, type 38 coupling and others. Mechanical pipe coupling is made up of follower, sleeve, rubber seals and other components. This type coupling’s function is similar with rigid coupling, connecting two pipes, without welding or flange, only screw the bolts and nuts, the rubber seals will prevent leakages.It provides superior performance compared to standard rubber or plastic components due to its durability as well as its ability to resist wear caused by pressure surges over time. Additionally, this product has excellent resistance against water infiltration which helps protect the integrity of your pipes over extended periods of time while still providing ample flexibility for installation purposes.