Series SJ-21

Products > Rubber Expansion Joints > Series SJ-21

BROCHURE

Flange Drilling

The SJ-21 is the industry standard spool-type expansion joint. The SJ-21 is available in configurations from zero to four arches – depending on movement requirements – and 3 standard pressure ratings in a variety of elastomers. This hand-built expansion joint can be adapted to the most unusual or difficult applications. Available options include filled arches to eliminate settling of solids in the arch, Teflon liners for severe chemical service, soft cuff ends for slip-on installation, and concentric or eccentric tapered ends for connecting different pipe sizes.

Specifications

Size (in)	F/F per Arch (in) 1	F/F per Arch (in) 2	F/F per Arch (in) 3	F/F per Arch (in) 4	Pressure (psi) SR	Pressure (psi) LP	Pressure (psi) HP	Joint Weight (lb)	Rings Weight (lb)	Axial Compression (in)	Axial Extension (in)	Lateral Deflection (in)	Angular Deflection (º)	Compression (lb/in)	Extension (lb/in)	Lateral (lb/in)	Angular (ft-lb/º)	Size (mm)	F/F per Arch (mm) 1	F/F per Arch (mm) 2	F/F per Arch (mm) 3	F/F per Arch (mm) 4	Pressure (kpa) SR	Pressure (kpa) LP	Pressure (kpa) HP	Joint Weight (kg)	Rings Weight (kg)	Axial Compression (mm)	Axial Extension (mm)	Lateral Deflection (mm)	Angular Deflection (º)	Compression (N/mm)	Extension (N/mm)	Lateral (N/mm)	Angular (N-m/º)
1	6	10	12	14	165	15	200	2	2	0.5	0.25	0.5	27.5	206	304	350	0	25	152	254	305	356	1139	104	1380	1	1	13	6	13	28	36	413	61	0
1 1/4	6	10	12	14	165	15	200	3	2		0.25	0.5	22.5	258	384	438	0	32	152	254	305	356	1139	104	1380	1	1	13	6	13	23	45	522	77	0
1 1/2	6	10	12	14	165	15	200	3	3	0.5	0.25	0.5	18.5	308	460	524	0	40	152	254	305	356	1139	104	1380	1	1	13	6	13	19	54	626	92	0
2	6	10	12	14	165	15	200	4	5	0.5	0.25	0.5	14.5	370	552	700	0	50	152	254	305	356	1139	104	1380	2	2.25	13	6	13	15	65	751	123	0
2 1/2	6	10	12	14	165	15	200	5	6	0.5	0.25	0.5	11.5	464	688	762	1	65	152	254	305	356	1139	104	1380	2	2.7	13	6	13	12	81	936	133	1
3	6	10	12	14	165	15	200	6	7	0.5	0.25	0.5	10	556	828	824	1	80	152	254	305	356	1139	104	1380	2	3.15	13	6	13	10	97	1126	144	1
4	6	10	12	14	165	15	200	8	8	0.5	0.25	0.5	7.5	742	1104	952	2	100	152	254	305	356	1139	104	1380	4	3.6	13	6	13	8	130	1501	167	3
5	6	10	12	14	165	15	200	9	9	0.5	0.25	0.5	6	926	1376	1092	4	125	152	254	305	356	1139	104	1380	4	4.05	13	6	13	6	162	1871	191	5
6	6	10	12	16	165	15	200	11	10	0.5	0.25	0.5	5	1112	1652	1234	6	150	152	254	305	406	1139	104	1380	5	4.5	13	6	13	5	195	2247	216	9
8	6	10	14	16	140	15	190	15	15	0.75	0.375	0.5	5.5	1295	1837	1506	13	200	152	254	356	406	966	104	1311	7	6.75	19	10	13	6	227	2499	264	17
10	8	12	14	16	140	15	190	23	18	0.75	0.375	0.5	4.5	1619	2296	1618	24	250	203	305	356	406	966	104	1311	10	8.1	19	10	13	5	283	3123	283	33
12	8	12	14	16	140	15	190	34	25	0.75	0.375	0.5	3.8	1941	2755	1896	42	300	203	305	356	406	966	104	1311	15	11.25	19	10	13	4	340	3746	332	57
14	8	12	16	20	85	15	130	40	27	1.0625	0.5625	0.5	3.3	1199	1702	2234	49	350	203	305	406	508	587	104	897	18	12.15	27	14	13	3	210	2314	391	67
16	8	12	16	20	65	15	110	47	33	1.0625	0.5625	0.5	2.8	1370	1944	2572	76	400	203	305	406	508	449	104	759	21	14.85	27	14	13	3	240	2644	450	103
18	8	12	16	20	65	15	110	56	33	1.0625	0.5625	0.5	2.5	1542	2189	2840	106	450	203	305	406	508	449	104	759	25	14.85	27	14	13	3	270	2977	497	145
20	8	12	16	20	65	15	110	67	38	1.0625	0.5625	0.5	2.5	2025	2833	3176	152	500	203	305	406	508	449	104	759	30	17.1	27	14	13	3	354	3853	556	207
22	10	14	18	22	65	15	110	70	44	1.0625	0.5625	0.5	2.3	2228	3117	3296	206	550	254	356	457	559	449	104	759	32	19.8	27	14	13	2	390	4239	577	280
24	10	14	18	22	65	15	110	79	48	1.0625	0.5625	0.5	2	2430	3401	3412	275	600	254	356	457	559	449	104	759	36	21.6	27	14	13	2	425	4626	597	373
26	10	14	18	22	55	15	90	100	57	1.0625	0.5625	0.5	2.3	2700	3746	3658	287	650	254	356	457	559	380	104	621	45	25.65	27	14	13	2	473	5094	640	390
28	10	14	18	22	55	15	90	102	62	1.0625	0.5625	0.5	2	2908	4034	3904	383	700	254	356	457	559	380	104	621	46	27.9	27	14	13	2	509	5486	683	520
30	10	14	18	22	55	15	90	117	66	1.0625	0.5625	0.5	2	3116	4324	4150	438	750	254	356	457	559	380	104	621	53	29.7	27	14	13	2	545	5880	726	595
34	10	14	18	22	55	15	90	112	78	1.0625	0.5625	0.5	1.8	3531	4900	5602	646	850	254	356	457	559	380	104	621	50	35.1	27	14	13	2	618	6664	980	878
36	10	14	18	22	55	15	90	143	81	1.0625	0.5625	0.5	1.5	3739	5188	6328	844	900	254	356	457	559	380	104	621	64	36.45	27	14	13	2	654	7055	1107	1148
40	10	14	18	22	55	15	90	173	106	1.0625	0.5625	0.5	1.5	4154	5764	6676	1042	1000	254	356	457	559	380	104	621	78	47.7	27	14	13	2	727	7839	1168	1417
42	12	14	18	24	55	15	80	193	116	1.0625	0.5625	0.5	1.5	4454	6123	6846	1163	1050	305	356	457	610	380	104	552	87	52.5	27	14	13	2	779	8328	1198	1582
44	12	14	18	24	55	15	80	198	127	1.0625	0.5625	0.5	1.5	4666	6413	7142	1271	1100	305	356	457	610	380	104	552	89	57.15	27	14	13	2	817	8722	1250	1728
48	12	14	18	24	55	15	80	211	138	1.0625	0.5625	0.5	1.3	5090	6997	7732	1826	1200	305	356	457	610	380	104	552	95	62.1	27	14	13	1	891	9516	1353	2483
50	12	14	18	24	55	15	80	240	154	1.0625	0.5625	0.5	1.3	5303	7288	8024	1968	1275	305	356	457	610	380	104	552	108	69.3	27	14	13	1	928	9912	1404	2676
54	12	14	18	24	55	15	80	265	160	1.0625	0.5625	0.5	1.3	5727	7872	8606	2308	1375	305	356	457	610	380	104	552	119	72	27	14	13	1	1002	10706	1506	3139
56	12	14	18	24	55	15	80	288	174	1.0625	0.5625	0.5	1.3	5939	8171	8896	2465	1400	305	356	457	610	380	104	552	130	78.3	27	14	13	1	1039	11113	1557	3352
60	12	14	18	24	55	15	80	309	190	1.0625	0.5625	0.5	1	6363	8755	9472	3537	1500	305	356	457	610	380	104	552	139	85.5	27	14	13	1	1114	11907	1658	4810
66	12	14	18	24	55	15	80	350	236	1.0625	0.5625	0.5	1	7000	9630	10216	4288	1675	305	356	457	610	380	104	552	158	106.2	27	14	13	1	1225	13097	1788	5832
72	12	14	18	24	45	15	70	385	278	1.0625	0.5625	0.5	0.9	7636	10505	10954	5681	1800	305	356	457	610	311	104	483	173	125.1	27	14	13	1	1336	14287	1917	7726
78	12	14	18	24	45	15	70	410	296	1.0625	0.5625	0.5	0.9	8272	11381	11902	6691	1975	305	356	457	610	311	104	483	185	133.2	27	14	13	1	1448	15478	2083	9100
84	12	14	18	24	45	15	70	435	336	1.0625	0.5625	0.5	0.8	8908	12256	12850	8641	2100	305	356	457	610	311	104	483	196	151.2	27	14	13	1	1559	16668	2249	11752
96	12	16	18	24	45	15	70	485	480	1.0625	0.5625	0.5	0.7	10181	14007	14750	13441	2400	305	406	457	610	311	104	483	218	216	27	14	13	1	1782	19049	2581	18280
102	12	16	20	24	45	15	70	535	450	1.0625	0.5625	0.5	0.7	10812	14869	15700	16967	2550	305	406	508	610	311	104	483	241	203	27	14	13	1	1892	20221	2748	23075
108	12	16	20	24	45	15	70	585	500	1.0625	0.5625	0.5	0.6	11453	15759	16650	21855	2750	305	406	508	610	311	104	483	263	225	27	14	13	1	2004	21432	2914	29723

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Series SJ-21

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