JWY Unconstrained Corrugated Compensator-Metal Expansion Joints

Overview

Bellow adopt single layer, double layer or multi-layer U type waves, bellow and cover material is 1Cr18Ni9Ti austenitic stainless, other material is low carbon steel or low alloy steel.

Metal bellows expansion joints (also called compensators) are compensating elements 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.

In modern Metal expansion Bellow, It is often produced with a so-called multi-ply design. To increase both flexibility and stability, multiple thin plies of metal are layered to form the bellow walls. There are two basic design types: The multi-ply and the multi-walled bellows structure.

Features

Characteristics:

1.Except for close to fixed bracket, also need three guide bracket between each fixed bracket.

2.Can be used in overhead pipeline, underground laying pipeline, also can be used in direct buries laying, compensator should equipped with inspection well or darkroom.

3.Used in axial compensation, has large compensation and strong self-steering and bending resistance ability.

4. Economy: Compared with the systems of mechanic stretching and material damping, it has the advantages of little space covering, light weight, easy assembly and disassembly, labor saving and low cost. Its smooth inner wall can reduce flow resistance. It has good water tightness, so there is no need of gasket during the installation. It has wide application, large temperature-resistance scope and long working life

Specification

ND(mm)	Waves	Axial compensation(mm)/ stiffness N/mm				Effective areas(cm²)	Connection tube size	Product length(mm)
ND(mm)	Waves	0.6Mpa	1.0Mpa	1.6Mpa	2.5Mpa	Effective areas(cm²)	Connection tube size	Product length(mm)
100	6	34/277	33/417	33/417	32/817	121	ф108×4	410
	10	56/166	56/250	54/250	50/409			492
	20	112/83	112/125	108/125	100/205			712
125	5	36/272	36/408	35/408	33/801	180	ф133×4	410
	9	65/151	65/227	63/227	60/401			412
	18	130/76	130/114	126/114	120/201			711
150	5	49/200	48/300	45/456	44/845	257	ф159×4.5	433
	8	78/125	77/188	71/286	65/423			518
	16	156/63	154/94	142/143	130/211			756
200	4	56/193	56/288	56/480	55/800	479	ф219×6	475
	6	85/128	85/192	84/320	80/927			533
	12	170/64	170/96	168/160	160/200			800
250	4	74/343	63/588	53/930	50/1856	769	ф273×8	500
	6	110/228	95/392	80/620	78/927			620
	12	220/114	190/196	160/310	156/464			984
300	4	72/503	65/830	57/1253	54/2142	1105	ф325×8	584
	6	109/335	97/553	85/835	80/1071			713
	12	218/168	194/277	170/418	160/536			1116
350	4	78/523	72/840	64/1265	62/2684	1307	ф377×10	614
	6	117/348	107/560	97/843	90/1342			759
	12	234/174	241/218	194/442	180/671			1216
400	4	73/458	70/918	65/1373	63/3675	1611	ф426×10	625
	6	109/305	102/612	97/915	90/1838			771
	12	218/153	204/306	194/458	180/920			1225
450	4	96/405	82/690	69/2305	65/4350	1972	ф478×10	620
	6	144/270	124/460	103/1537	90/2175			762
	12	288/135	248/230	206/769	180/1087			1200
500	4	100/423	84/728	70/2452	65/4256	2445	ф529×10	624
	6	149/282	126/485	105/1635	90/2128			766
	12	298/141	252/243	210/818	180/1064			1216