Rubber Pipe Expansion Joints

Rubber pipe expansion joints are often used to compensate for minor misalignment and offset. The design is chemical and abrasion resistant accommodates for higher pressures than the standard metal expansion joints and eliminates sediment buildup. They have an integrally flanged design where no gaskets are required and are designed to absorb noise, vibration, and shock. This single, wide arch, spool-type rubber expansion joint is provided with hot-dipped galvanized retaining rings.

Rubber Expansion Joints for Centrifuge Suction & Discharge of Paraxylene Application

Us bellows rubber expansion joint 148809

42 id rubber expansion joints for a power plant in texas 4689456350 o

FAQ

When do we use a rubber molded expansion joints?

For rubber bellows in CAESAR, do we need to specify any stiffness, since it is typically low?

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Rubber Expansion joint Table

Typical Wide Arch Expansion Joint Movement/Spring Rate Capabilities

Nominal Pipe Size Expansion Joint		Nominal Face-to-face Minimum Length		MOVEMENTS								SPRING RATES
Nominal Pipe Size Expansion Joint		Nominal Face-to-face Minimum Length		AXIAL COMPRESSION		AXIAL EXTENSION		LATERAL DEFLECTION DEGREES OF ANGULAR MOVEMENT		DEGREES OF ANGULAR MOVEMENT	DEGREES OF TORSIONAL MOVEMENT	AXIAL COMPRESSION		AXIAL EXTENSION		LATERAL DEFLECTION		ANGULAR MOVEMENT
in	mm	in	mm	in	mm	in	mm	in	mm	DEGREES OF ANGULAR MOVEMENT	DEGREES OF TORSIONAL MOVEMENT	lbs/in	N/mm	lbs/in	N/mm	lbs/in	N/mm	ft-lbs/ deg	Nm/deg
1*	25	6	150	7/16	19	7/16	11	5/8	16	34.4	3	176	31	228	39	262	46	0.03	0.04
1-1/4*	32	6	150	7/16	19	7/16	11	5/8	16	28.1	3	220	38	287	50	328	57	0.075	0.1
1-1/2	40	6	150	7/16	19	7/16	11	5/8	16	23.1	3	265	46	344	60	393	69	0.11	0.15
2	50	6	150	7/16	19	7/16	11	5/8	16	18.1	3	317	55	414	72	525	92	0.22	0.3
2-1/2	65	6	150	7/16	19	7/16	11	5/8	16	14.4	3	397	69	517	90	571	100	0.375	0.51
3	75	6	150	7/16	19	7/16	11	5/8	16	12.5	3	476	83	621	109	618	108	0.6	0.81
3-1/2	88	6	150	7/16	19	7/16	11	5/8	16	10.4	3	556	97	724	127	666	117	0.975	1.32
4	100	6	150	7/16	19	7/16	11	5/8	16	9.4	3	636	111	828	145	714	125	1.425	1.93
5	125	6	150	7/16	19	7/16	11	5/8	16	7.5	3	793	139	1032	181	819	143	3	4
6	150	6	150	7/16	19	7/16	11	5/8	16	6.2	3	953	167	1239	217	925	162	5	7
8	200	6	150	1-3/16	30	11/16	17	5/8	16	6.9	3	1059	185	1378	241	1129	198	10	13
10	250	8	200	1-3/16	30	11/16	17	3/4	19	5.6	3	1324	232	1722	302	1213	212	18	24
12	300	8	200	1-3/16	30	11/16	17	3/4	19	4.7	3	1588	278	2066	362	1422	249	32	43
14	350	8	200	1-3/16	30	11/16	17	3/4	19	4.1	2	1390	243	1808	317	1675	293	14	19
16	400	8	200	1-3/16	30	11/16	17	3/4	19	3.4	2	1588	278	2066	362	1929	338	57	77
18	450	8	200	1-3/16	30	11/16	17	3/4	19	3.1	1	1786	313	2326	407	2130	373	80	108
20	500	8	200	1-7/16	37	3/4	19	3/4	19	3.1	1	1987	348	2580	452	2382	417	114	155
22	550	10	250	1-7/16	37	3/4	19	3/4	19	2.8	1	2185	383	2839	497	2472	433	154	209
24	600	10	250	1-7/16	37	3/4	19	3/4	19	2.5	1	2383	417	3097	542	2559	448	205	278
26	650	10	250	1-5/8	41	1	25	3/4	19	2.9	1	2295	402	2985	523	2743	480	219	297
28	700	10	250	1-5/8	41	1	25	3/4	19	2.5	1	2472	433	3214	563	2928	513	286	388
30	750	10	250	1-5/8	41	1	25	3/4	19	2.5	1	2649	464	3445	603	3112	545	328	445
32	800	10	250	1-5/8	41	1	25	3/4	19	2.2	1	2827	495	3674	643	3657	640	416	564
34	850	10	250	1-5/8	41	1	25	3/4	19	2.2	1	3001	525	4201	736	4201	736	484	656
36	900	10	250	1-5/8	41	1	25	3/4	19	1.9	1	3178	556	4134	724	4746	831	633	926
38	950	10	250	1-5/8	41	1	25	3/4	19	1.9	1	3356	588	4363	764	4876	854	707	959
40	1000	10	250	1-5/8	41	1	25	3/4	19	1.9	1	3531	618	4593	804	5007	877	781	1059
42	1050	12	300	1-7/8	48	1	25	3/4	19	1.9	1	3339	585	4337	759	5134	899	872	1182
44	1100	12	300	1-7/8	48	1	25	3/4	19	1.9	1	3498	613	4543	796	5356	938	952	1291
46	1150	12	300	1-7/8	48	1	25	3/4	19	1.6	1	3652	640	4754	832	5577	977	1260	1708
48	1200	12	300	1-7/8	48	1	25	3/4	19	1.6	1	3815	668	4956	868	5799	1016	1369	1856
50	1250	12	300	1-7/8	48	1	25	3/4	19	1.6	1	3975	696	5163	904	6018	1054	1476	2001
52	1300	12	300	1-7/8	48	1	25	3/4	19	1.6	1	4134	724	5374	941	6235	1092	1603	2173
54	1350	12	300	1-7/8	48	1	25	3/4	19	1.6	1	4293	752	5576	976	6454	1130	1731	2347
56	1400	12	300	1-7/8	48	1	25	3/4	19	1.6	1	4452	780	5787	1013	6672	1168	1848	2505
58	1450	12	300	1-7/8	48	1	25	3/4	19	1.2	1	4611	807	5994	1050	6888	1206	2482	3365
60	1500	12	300	1-7/8	48	1	25	3/4	19	1.2	1	4770	835	6201	1086	7104	1244	2653	3597
66	1650	12	300	1-7/8	48	1	25	3/4	19	1.2	1	5247	919	6821	1194	7662	1342	3216	4360
72	1800	12	300	1-7/8	48	1	25	3/4	19	1.1	0.5	5724	1002	7441	1303	8215	1439	4261	5777
78	1950	12	300	1-7/8	48	1	25	3/4	19	1.1	0.5	6201	1086	8061	1412	8926	1563	5266	7140
84	2100	12	300	1-7/8	48	1	25	3/4	19	1	0.5	6678	1169	8681	1520	9637	1688	6481	8787
96	2400	12	300	1-7/8	48	1	25	3/4	19	0.87	0.5	7632	1337	9921	1737	11062	1937	10081	13668
102	2550	12	300	1-7/8	48	1	25	3/4	19	0.82	0.5	8109	1420	10542	1846	11775	2062	12725	17253
108	2700	12	300	1-7/8	48	1	25	3/4	19	0.77	0.5	8586	1503	11162	1955	12489	2187	16391	22223
120	3000	12	300	1-7/8	48	1	25	3/4	19	0.7	0.5	9540	1670	12403	2172	13912	2436	22403	30374
132	3300	12	300	1-7/8	48	1	25	3/4	19	0.64	0.5	10494	1838	13642	2389	15216	2665	25160	34112
144	3600	12	300	1-7/8	48	1	25	3/4	19	0.59	0.5	11448	2005	14882	2606	16519	2893	32176	43625

MOVEMENT CAPABILITY
1. Filled Arch reduces movement.
2. The degree of Angular Movement is based on the maximum extension shown.
3. If greater movements are desired, expansion joints can be supplied with two, three, or four
arches. Relatively longer “Face-to-Face” length dimensions are incorporated into designs of
Multiple Arch Type expansion joints.
4. To calculate the approximate movement of Multiple Arch expansion joints, take the movement
shown in the above table and multiply by the number of arches.
5. Movements shown above are based on proper installation practice.

B. SPRING RATE
1. Forces required to move expansion joints are based on zero pressure conditions and room
the temperature in the pipeline.
2. These forces should be considered only as approximates which may vary with the
elastomers and fabrics used in fabrication and the specific construction design of an
individual manufacturer.
3. See Chapter III, Section F for the definition of values shown.
4. To calculate the approximate Spring Rate for Multiple Arch Joints, divide the single arch
values by the number of arches.

C. FORCE POUNDS
1. Is the force required to move an expansion joint its rated movement.
*Items are normally furnished with “Filled Arch” construction.

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