Material of limited expansion joint

No.	Name	Quantity	Material
1	Cover	2	QT400-15, Q235A, ZG230-450, 20
2	Sleeve	1	Q235A, 20, 16Mn
3	Gasket	2	NBR
4	Limit nozzle stud	2	Q235A, 16, 16Mn
5	Nut	7n	Q235A, 20, 1Cr18Ni9Ti
6	Long stud	n	Q235A, 35, 1Cr18Ni9Ti
7	stud	n	Q235A, 35, 1Cr18Ni9Ti

  Introduce of telescopic joint SSJB-3 (BY) gland type loose sleeve expansion joint is based on the original performance of the loose sleeve expansion joint, and a limit device is added. The maximum expansion of the gland type loose sleeve limit expansion joint is locked with double nuts. It is suitable for plugging both sides of the pipe without welding. Applicable environment: suitable for steam, granular powder and other media with temperature not higher than 250 ℃. Scope of application: widely used in urban heating, metallurgy, mining, power generation, petrochemical, construction and other industries. Suitable for hot water, steam, grease and other media.    Specification List of gland expansion joint

Nominal Diameter DN	External diameter of pipe		Overall dimension
	Dw	Do	D	L	L1
65	76	76	155	645	180
80	89	89	165
100	108	108	195
	114	114	195
125	133	133	225
	140	140	225
150	159	159	255
	168	168	255
200	219	219	310
250	273	273	375
300	325	325	440	655	220
350	377	377	490
400	426	426	540
450	480	480	590
500	530	530	645
600	630	630	750
700	720	720	850
800	820	820	965	1075	290
900	920	920	1065
1000	1020	1020	1165
1200	1220	1220	1365
1400	1420	1428	1590
1500	1520	1528	1690
1600	1620	1628	1795
1800	1820	1828	2000
2000	2020	2030	2200
2200	2220	2230	2420
2400	2420	2430	2635
2600	2620	2630	2835
2800	2820	2830	3040
3000	3020	3030	3240
3200	3220	3230	3440	1130	400
3400	3420	3432	3640
3600	3620	3632	3860