Thick Wall Bellow Expansion Joint

• Customization: Available
• Connection: Flange
• Kind: Corrugated Compensator
• Model NO.: BEJ
• Head Code: Round
• Material: Stainless Steel
• Surface Treatment: Galvanized
• Customized: Customized
• Warranty: 24 Months
• Application: Chemical
• Color: Customized
• Product Name: Thick Wall Bellow Expansion Joint
• Transport Package: Plywooden Case
• Specification: 1" - 48"
• Trademark: Fly
• Origin: Zhejiang Province, China
• HS Code: 7307990000

Product Description

Thick wall bellow expansion joint

Thick Wall Expansion Joints are the simplest type of expansion joints. They are compact requiring virtually no additional space beyond the length of bellows and weld ends or flanges for installation. They have further advantage of not imposing a change in the direction of flow. Where small thermal movements are involved and where proper anchoring and guiding is possible single axial bellows provide the most economical solution.
HEAVY WALL EXPANSION JOINTS WITH WELD ENDS
Thick Wall Expansion Joints are normally supplied without any end connections due to the fact that it is easier to weld the end fittings to them by a relatively less skilled welders. The heavy wall bellows are less susceptible to damage during installation and system start-up however these bellows possess high spring forces as a result of high convolution profile. The thickness of these thick wall bellows elements vary from 1 mm to 3 mm depending up on size and the height of convolution varies from 50 mm to 100 mm.


The bellows of a metal expansion joint is made up of one or more convolutions. The bellows provide stable, long-lasting, solutions to many problems involving harmonics, vibration, and high temperature expansion. The joint must be designed strong enough to accommodate the system design pressure, as well as, flexible enough to accept the design deflections for a calculated number of cycles.

Metal expansion joints are being successfully utilized in refineries, chemical plants, fossil and nuclear power systems, heating and cooling systems, and cryogenic plants. Service conditions have ranged from pressures of 25 microns to 1,000 PSIG and -420°F to +1800°F. These types of expansion joints are a highly engineered product and can perform their intended function safely and reliably.
Unlike most commonly used piping components, bellows are constructed of a relatively thin gauge material in order to provide the flexibility needed to absorb mechanical and thermal movement expected in service.

For selection of the proper metal expansion joint, the following steps should be followed:
1. Select applicable pipe size
2. Select applicable pressure range.
3. Determine type and amount of movement to be absorbed.
4. Select bellows (single or dual and number of convolutions) to satisfy deflection requirements.
5. Determine end fittings and hardware required.

Warning:
Expansion joints may operate in pipelines or equipment carrying fluids and/or gases at elevated temperatures and pressures. Precaution should be taken to insure proper installation and regular inspection. Care is required to protect personnel in the event of leakage or splash.

 

DN mm	No. of Arch	Axial displacement mm/Stiffness N/mm					Effective Area  cm^2	Max OD mm	Length
		0.25MPa	0.6MPa	1.0MPa	1.6MPa	2.5MPa			Flange JDZ/F(mm)	Weld End JDZ/J(MM)
32	8	25/21	22/26	20/26	18/63	15/98	16	110	160/250	264/210
	16	50/11	46/14	41/14	36/32	31/47		220	224/291	346/320
40	8	25/28	22/44	20/44	18/89	15/106	23	130	164/259	269/260
	16	50/14	46/22	41/22	36/45	31/55		240	230/304	319/400
50	8	25/30	22/51	20/70	18/70	15/138	37	150	172/276	282/230
	16	50/16	46/26	41/35	36/35	31/70		260	240/342	347/450
65	8	33/28	30/35	26/44	22/55	19/68	55	170	215/294	300/260
	12	42/16	38/22	38/32	34/41	29/50		280	260/334	340/470
80	8	40/20	36/26	34/33	28/41	34/54	81	200	240/338	344/260
	10	53/14	49/17	49/21	43/26	38/33		230	270/368	374/300
100	8	45/47	45/60	40/75	35/93	29/117	121	220	235/317	323/280
	10	76/26	74/32	64/40	57/50	49/63		260	305/381	387/320
125	6	48/38	42/47	38/59	34/74	29/92	180	250	282/314	316/320
	8	85/23	77/29	66/36	58/45	50/56		290	382/386	388/360
150	6	49/42	44/50	40/62	34/78	29/97	257	250	282/339	338/320
	8	79/34	71/43	64/51	54/59	46/65		290	356/399	402/360
200	6	52/49	46/55	42/68	38/78	34/111	479	300	280/348	348/370
	8	73/31	65/44	59/52	53/58	48/78		340	340/402	402/420
250	6	72/30	65/34	59/42	52/45	47/55	769	300	315/379	415/420
	8	108/16	97/21	87/35	79/39	71/47		360	393/459	493/460
300	6	72/51	65/55	59/59	52/65	47/71	1105	340	366/427	466/480
	8	108/32	97/35	87/37	79/41	71/45		400	464/525	564/520
350	6	72/58	65/62	59/67	52/74	47/81	1307	340	397/452	497/480
	8	108/38	97/41	87/44	79/48	71/47		420	509/564	609/540
400	6	72/54	65/58	59/62	52/68	47/75	1611	340	412/478	512/480
	8	108/36	97/39	87/43	79/47	71/52		420	522/588	622/560
450	6	108/32	97/35	87/37	79/41	71/45	1972	340	403/498	503/500
	8	162/20	145/22	131/23	118/25	106/28		450	503/658	603/590
500	6	108/59	97/64	87/68	79/75	71/82	2445	340	431/523	531/500
	8	162/34	145/37	131/39	118/43	106/48		450	531/665	631/600
600	6	108/74	97/80	87/85	79/94	71/103	3534	380	478/548	578/540
	8	162/42	145/45	131/49	118/53	106/60		500	658/679	758/640
700	4	108/67	97/72	87/77	79/85	71/95	4717	1110	460	550
	6	162/42	145/45	131/49	118/53	106/60			580	670
800	4	120/88	108/95	102/102	94/112	82/123	5822	1265	462	560
	6	186/67	164/72	156/77	144/85	125/93			560	600
900	4	120/84	108/90	102/97	94/107	82/117	7620	1186	462	620
	6	183/60	164/65	156/59	144/76	125/84			610	720
1000	4	120/91	108/98	102/105	94/116		9043	1286	480	692
	6	183/59	164/65	156/71	144/81				640	790

Factory Corner

FAQ
Q. Are you a trading company or a manufacturer?
A: We are a manufacturer as you can see our workshop as above.

Q. What is your payment term?
A:Normally T/T 30% in advance, balance to be paid before delivery.

Q: What is your main market?
A:North America,Greenland,South America,Africa,Southeast Assia, Former Soviet Republics ,East Assia,and Europe.
Q: Can I place sample order to your factory?
A: Yes, Samples can be provided.

Q:What kind of trade terms can you do?
A:EX-WORKS,FOB,CFR,CIF,etc.

Q: How long is your delivery time?
A: Generally it is 5-7 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is accordijng to quantity.