Rectangle Double Bellow Expansion Joint

Rectangular double-wave expansion joint is a device used to compensate for the thermal expansion and contraction phenomenon of the pipeline due to temperature change. Through the characteristics of its elastic compensating element, it can effectively reduce the vibration of the host computer, absorb the vibration of the pipeline, reduce the noise of the pipeline, protect the equipment, and extend the service life of the pipeline.

Overview

Composition and structure

It usually consists of two bellows, an intermediate receiver, and a large tie rod and other parts.

The bellows is usually made of chromium-nickel austenitic stainless steel, which has good corrosion resistance.

Functions and Characteristics

Capable of absorbing transverse displacement in any plane of the pipe system.

The spherical nut and spherical washer can be rotated when transverse displacement occurs, and the large tie rod also has the ability to withstand internal pressure thrust.

Advantages:

Good expansion and contraction: rectangular double-wave expansion joint can effectively absorb the size change of pipeline or equipment, reduce the stress, so as to extend the service life of the equipment.

High pressure resistance: Because it is made of metal material, rectangular double-wave expansion joint has high pressure resistance strength and can withstand high pressure.

High reliability: its simple structure, reasonable design, reliable operation, can ensure the normal operation of pipeline or equipment.

Convenient maintenance: simple structure, easy to maintain and replace.

Free expansion and contraction: Rectangular double-wave expansion joints can freely expand and contract in work, belonging to a kind of elastic compensation element, which can effectively reduce the vibration of the host, absorb the vibration of the pipeline, reduce the noise of the pipeline, protect the equipment, and prolong the service life of the pipeline.

Corrosion-resistant, high temperature resistant: made of high-quality stainless steel material, with good corrosion resistance and high temperature resistance, to ensure the long-term stable operation of the compensator in harsh environments.

Strong applicability: compact structure, reliable work, low cost, suitable for a variety of pipelines and equipment, such as steam piping, hot water piping, flue, etc..‌

Nominal Diameter	A	B	I	B₁	I₁	Weight Kg
mm						Weight Kg
600x700	600	700	909	411	1009	65.6
600x800		800	909		1109	70.3
600x900		900	1013		1313	111.9
700x500	700	500	809	411	1009	61.2
700x700		700	1009		1009	70.3
700x800		800	1113		1213	111.9
800x800	800	800	1213		1213	118.5
800x1200		1200			1613	145.2
800x1600		1600			2013	171.9
900x400	900	400	709	411	1209	65.6
900x700		700	1113		1313	118.5
900x1200		1200	1313		1613	151.7
1000x600	1000	600	1013		1413	118.5
1000x700		700	1113			125.2
1000x800		800	1213			131.8
1000x1000		1000	1413			145.2
1200x600	1200	600	1613	411	1613	131.8
1200x700		700	1113			138.4
1200x800		800	1213			145.2
1200x1000		1000	1413			158.5
1200x1200		1200	1613			171.9
1400x700	1400	700	1113	411	1813	151.7
1400x800		800	1213			158.5
1400x900		900	1313			168.1
1400x1000		1000	1413			171.9
1400x1200		1200	1613			185
1500x800	1500	800	1213	411	1913	165.1
1500x900		900	1313			171.9
1500x1000		1000	1413			178.5
1500x1200		1200	1613			191.8
1600x1000	1600	1000	1413	411	2013	185
1600x1200		1200	1613			198.4
1600x1400		1400	1813			211.7
1600x1600		1600	2013			225.1
1800x900	1800	900	1313	411	2213	191.8
1800x1000		1000	1413			198.4
1800x1200		1200	1613			211.7
1800x1400		1400	1813			255.1
1800x1800		1800	2213			251.8
2000x1000	1990	1000	1413	411	2413	205.3
2000x1300		1300	1713			229.7
2000x1600		1600	2013			249.6
2000x1800		1800	2213			263
2000x2000		2000	2413			276.3
2200x1200	2200	1200	1613	411	2200	238.4
2200x1400		1400	1813			251.8
2200x1600		1600	2013			265.1
2200x1800		1800	2213			278.5
2200x2000		2000	2413			291.8
2400x1200	2400	1200	1613	411	2400	251.8
2400x1400		1400	1813			265.1
2400x1600		1600	2013			278.5
2400x1800		1800	2213			291.5
2400x2000		2000	2413			305.2
2600x1600	2600	1600	2013	411	3013	291.8
2600x1800		1800	2213			305.2
2600x2000		2000	2513			464.6
2600x2200		2200	2713	455	3113	483.7
2800x1800	2800	1800	2213	455	3313	464.6
2800x2000		2000	2513			483.7
2800x2200		2200	2713			502.8
2800x2400		2400	2913			521.9
3000x2000	3000	2000	2513	455	3513	502.8
3000x2400		2400	2913			540.7
3000x2600		2600	3113			559.8
3200x2200	3200	2200	2713	455	3713	540.7
3200x2600		2600	3113			577.9
3200x3000		3000	3513			616.9
3600x2400	3600	2400	2913	455	4113	598
3600x2800		2800	3313			635.9
3600x3200		3200	3713			674.1
4000x2800	4000	2800	3313	455	4513	674.1
4000x3000		3000	3513			693
4000x3200		3200	3713			712.1
4500x3000	4500	3000	3513	455	5013	704.6
4500x3400		3400	3913			778.7
4500x4000		4000	4513			835.8
5000x3400	5000	3400	3913	455	5513	826.3
5000x3800		3800	4313			864.3
5000x4200		4200	4713			902.4
5500x3600	5500	3600	4113	455	6013	891
5500x4200		4200	4713			949.2
5500x4800		4800	5313			1006.3
6000x4000	6000	4000	4513	455	6513	978.6
6000x4600		4600	5113			1035.6
6000x5000		5000	5513			1073.7