Small Rod Horizontal The Type Expansion Joint

Small rod horizontal the Type expansion joint is a kind of equipment used to compensate the displacement change caused by thermal expansion and contraction, vibration and other factors in pipeline system.

Overview

Small rod Horizontal the type expansion joint is a kind of equipment used to compensate the displacement change caused by thermal expansion and contraction, vibration and other factors in pipeline system. It consists of two sections of bellows, intermediate receiver and small tie rod with limit nut and other parts. It is composed of two sections of bellows, intermediate receiver and parts such as small tie rod with limit nut, etc. The small tie rod can't bear the internal pressure thrust, and mainly absorbs the displacement through the deformation of bellows. The axial, lateral and angular displacements of the pipe are compensated by the elastic deformation of the bellows. When the pipeline expands and contracts due to temperature change, the compensator can provide the necessary displacement compensation, thus protecting the pipeline system from damage.

Advantages

(1) Freedom of compensation direction: the small tie rod transverse corrugated compensator can freely compensate transverse, axial and angular displacements, which makes it perform well in the compensation of displacements in many directions.

(2) Good stability: through the design of two-section bellows, the small-tie rod transverse corrugated compensator can absorb transverse displacement and axial displacement at the same time, with good stability and good compensation effect.

(3) Occupying small space: Due to its small external dimensions, it occupies small space and is especially suitable for compensation between places with narrow space or large equipment.

(4) Long service life: small tie rod transverse type compensator has a long service life, which effectively improves the reliability of the connection between pipes.

(5) Noise reduction and vibration damping: the use of deformation of the mechanical force of the heat transfer function, small tie rod transverse type compensator can also effectively reduce vibration and noise transmission.

(6) Wide range of application: suitable for complex geological conditions, settlement amplitude and pipeline operation in the pipeline damage caused by frequent hot and cold changes in the place.

(7) Low maintenance cost: designed with smooth inner wall, it has no effect on the flow rate and flow of medium, and it never rusts, which basically exempts the maintenance during the effective movement period.‌

Small Rod Horizontal The Type Expansion Joint structure plan.jpg

Nominal Path DN mm	Bellows		Axial		Y₀-Horizontal compensation(mm)						KY₀-Lateral stiffness(N/mm)						Radial direction Shape Maximun Size B mm	Product Type
	Effective Area A cm²	Wave Number n	Compensation amount X⁰ ±mm	Stiffness Kθ⁰N/mm	Total length L mm
					1500		2000		2500		3000		3500		4000
					Y₀	K_Y0	Y₀	K_Y0	Y₀	K_Y0	Y₀	K_Y0	Y₀	K_Y0	Y₀	K_Y0
Design pressure Pd=1.0MPa (0.25kgf/cm²) Fatigue life [N]=1000 Design temperature t=20℃
100	154	8 4+4	22	348	162	3.3	247	1.5	332	0.84							308
150	299		34	504	109	9.2	166	4.2	223	2.4							359	AXH
200	531		58	746	115	26	179	12	244	6.5							439
250	779		33	925	91	48	143	21	195	12	247	7.5					493
300	1075		42	768	96	57	152	25	209	14	266	8.7					545
350	1269		42	840	76	92	127	37	178	20	230	12					627
400	1619		41	958	67	134	111	54	155	29	200	18					676
450	2003		40	1074	59	185	98	74	138	40	177	25					728
500	2428		40	1190	53	249	89	100	124	53	160	33					779
600	3473		71	781	54	379	104	126	156	62	209	37	262	24			880	AXHK
700	4747		80	731	52	486	100	162	150	80	201	47	252	31			1150
800	6046		79	792	46	671	88	224	132	110	176	65	221	43			1250
900	7503		78	854	41	897	78	299	117	147	157	87	196	57			1350
1000	9314		69	202	32	2637	62	879	92	432	123	256	155	169			1480
1100	11103		68	2203	29	3425	56	1141	84	561	112	332	140	220	168	156	1580
1200	13060		68	2386	27	4359	51	1453	77	714	103	423	129	279	155	198	1680
1300	15153		67	2509	24	5451	47	1817	71	893	94	529	118	349	142	248	1780
1400	17413		67	2752	23	6709	44	2236	66	1100	88	651	110	430	133	305	1880
1500	19831		66	2956	21	8151	41	2716	61	1336	82	791	102	522	123	377	1980
Design pressure Pd=16MPa (16kgf/cm²) Fatigue life [N]=1000 Design temperature t=20℃
100	156	8 4+4	18.4	474	124	6.3	189	2.8	254	1.6							308	AXH
150	302		17.6	955	85	18	130	7.9	174	4.5							359
200	535		31.6	746	106	26	166	12	226	6.5							439
250	779		31	930	85	48	133	21	181	12	229	7.5					493
300	1081		33	1472	74	110	117	48	161	26	204	17					545
350	1275		23	1614	59	177	99	71	138	38	178	24					672
400	1625		32	1845	52	258	86	103	121	55	156	34					676
450	2011		32	2072	46	359	77	144	108	77	139	48					728
500	2437		31	2300	42	482	69	193	97	103	125	64					779
600	3484		55	1453	41	709	80	236	120	116	160	69	201	45			880	AXHK
700	4754		62	1328	40	884	77	295	116	145	155	86	194	57			1010
800	6055		61	1462	35	1240	68	413	101	203	135	120	169	79			1110
900	7512		60	1602	31	1685	60	526	90	276	120	164	150	108			1210
1000	9314		64	2052	30	2676	57	892	86	439	115	260	144	172			1340

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