Henan Liwei Industry Co., Ltd: 
1. Since 1988, Top 3 manufacturer of metallic pipe expansion joint in China; 
2. The Main Drafting Committee of National Standard for Expansion Joint; 
3. Qualified Supplier for Nuclear Power Plant; 
4. ISO9001: 2008 and ISO14001: 2004 Certified. 

Piping Expansion Joint, also known as metallic bellows, bellows, stainless steel expansion joint, bellows expansion joint, metal expansion joint, etc., is the compensating element for thermal expansion and relative movement in pipelines, containers and machines. They consist of one or more metal bellows, connectors at both ends, and tie rods that depend on the application. They are differentiated according to the three basic types of movement: Axial, angular and lateral expansion joints. 

Piping Expansion Joint is elastic vessel that can be compressed when pressure is applied to the outside of the vessel, or extended under vacuum. When the pressure or vacuum is released, the bellows will return to its original shape (provided the material has not been stressed past its yield strength). 

Features: 

Economical end usage 
Providing for lower initial costs in piping & construction work 
Applications: 

Diesel engine sets 
Pipelines 
Turbines 
Compressors 
Blowers 
Vacuum pumps 
Heat exchangers 
Advantages: 

Reduce vibration 
Dampen sound transmission 
Compensate lateral, torsional & angular movements 
Compensate axial movements 
Minimal face-to-face dimensions 
Lightweight 
Low movement forces required 
Reduced fatigue factor 
Reduced heat loss 
Corrosion, erosion resistant 
No gaskets 
Parameters of Piping Expansion Joint: 

Liwei Piping Expansion Joint: 


Why us: 
Henan Liwei Industry Co., Ltd. Is a leading manufacturer of piping expansion joint in China. We have: 
(1) Strong R&D strength; 
(2) Strict Quality Control System; 
(3) Perfect Test System; 
(4) Professional After-sale Service Team; 
(5) OEM Service. 
We are your qualified supplier and reliable friends! 
Thanks for your attention. For more information, please feel free to contact our sales manager: 
Janice Chen
Mobile: +86-18039639133

nominal diameter DN		length L	axial displacement		horizontal displacement mm	deflexion angle a1+a2
mm	inch		extension mm	compression mm
32	1 1/4	95	6	9	9	15
40	1 1/2	95	6	10	9	15
50	2	105	7	10	10	15
65	2 1/2	115	7	13	11	15
80	3	135	8	15	12	15
100	4	150	10	19	13	15
125	5	165	12	19	13	15
150	6	180	12	20	14	15
200	8	210	16	25	22	15
250	10	230	16	25	22	15
300	12	245	16	25	22	15
350	14	255	16	25	22	15
400	16	255	16	25	22	15
450	18	255	16	25	22	15
500	20	255	16	25	22	15
600	24	260	16	25	22	15
700	28	320	16	25	22	15
800	32	340	16	25	22	15
900	36	370	16	25	22	15
1000	40	400	18	26	24	15
1200	48	420	18	26	24	15