At Unick Control System, we take pride in manufacturing high-quality expansion bellows, both rubber and metallic, meticulously designed to meet our clients' exact specifications. Our expansion bellows are engineered to absorb thermal expansion, vibration, and mechanical stresses, ensuring enhanced performance and durability in a wide range of industrial applications, including power plants, chemical industries, and HVAC systems. Using advanced materials and cutting-edge technology, we deliver products that offer exceptional flexibility, pressure resistance, and longevity. Whether itâ??s rubber bellows for superior elasticity or metallic bellows for high-temperature and pressure environments, we work closely with our clients to provide customized solutions that meet their operational needs and ensure seamless functionality.
Expansion joint,Expansion joint Supplier
Size : DN50~DN1000
 Pressure : Max 4.0 Mpa
 Bellows : Carbon Steel / Stainless Steel
 Other parts : Carbon Steel / Stainless Steel
Expansion joint
Expansion joint can also be called pipe expansion joint, compensator, expansion. Expansion joint is divided into: corrugated expansion joint, sleeve expansion joint, square natural compensation expansion joint and other major types,
1. Compensation for expansion deformation caused by heating of absorption pipeline in axial, lateral and angular directions.
2. Absorb equipment vibration to reduce the influence of equipment vibration on pipeline.
3. The amount of deformation of pipelines by absorbing earthquake and subsidence.
Because of the heat expansion and cold contraction of the pipe, so for the pipe, it is necessary to produce the stress and push tension of the pipe wall; The stress on the wall of the pipe affects the strength of the pipe, and the push and pull force increases. The fixed bracket of the pipe should be made large to withstand the push and pull force generated by the pipe expansion. Therefore, the variable opening method compensated by the ductile iron pipe mechanical joint fittings is used to reduce the stress and thrust of the pipe wall.
The expansion joint is mainly used to compensate the expansion deformation caused by the temperature change of the pipeline, and also to compensate the length of the pipeline due to the installation and adjustment. It is mainly divided into three structural forms: wholesale elbow expansion joint, bellows expansion joint and casing expansion joint.
Manufacture all type of metal bellows made from stainless steel grades. We manufacture both circular and ducting square/rectangular bellows as per customer requirement.
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Expansion joints used on ships(DN100mm)
1.DN: 8mm-10000mm
2.Material: Carbon steel, Titanium, Zirconium, Hastelloy, Nickel alloys, Duplex Steel and Austenitic Stainless Steel
3.Thickness: 0.15mm-70mm
4.Forming method: Hydraulic forming
5.Pressure(MPa):-10 to +10
6.shape: U V
7.Temp.(oC): -196 to 1400.
Name Nominal diameter
DN(mm) Plies Forming method Convolutions Pressure
(Mpa) shape Temp.
()
Bellows
for pressure vessel ¦µ150-¦µ4500 1-6 Hydraulic forming 1-4 -10 to +10 U
¦¸ -100 to 1250
Bellows expansion joint ¦µ8-¦µ10000 1-70 Hydraulic forming
Roll forming 1-16 -10 to +10 U
¦¸
V -196 to 1400
With insulation sleeve
Rectangular expansion joint(fabric) Any dimension 3-10 Press-brake
forming 1-4 -0.2 to +0.2 U.
To provide stress relief in ducting system by absorbing any difference in dimension caused by thermal change.
To protect equipment by reducing equipment vibration.
To provide simple connection of misaligned pipes.
Accommodate expansion and contraction movement in axial, lateral and angular direction.
Prevent the propagation of electricity
Dampen sound transmission
Type, Size and Pressure Rating
Type : Single arch type, multi arch type, sleeve, Joint type, Enlarge Flange type, wide arch type.
Size : 50 to 3000 mm
Pressure (base on dia) : Upto 25 kg/cm2
Permissible movement : Axial (compression) - upto 200 mm
Axial (elongation) - upto 75 mm
Transverse - upto 75 mm
Face to Face length : 50 to 700 mm
FUSTAR Corrugated Pipe Co,.Ltd is one of the leading manufacturers of expansion joints and metallic bellows.
We design and manufacture Universal(axial) Expansion Joints according to EJMA standard and optimization design. With over 10 years of experience in the design and manufacture of bellows expansion joint combined with our state of the art on-site facilities enables us to offer a wide range of bellows suitable for any application and design requirements.
Flange ConnectionÂ
It is very common to apply any standard and shape flanges to any size expansion joints for simple installation and replacement. We can follow ANSI, DIN, JIS and GB standard of flanges on different pressure grade, pressure from 0-5.0Mpa and diameter from DN15-DN8000mm in all different material following customersâ?? requirements. Any other special shape flanges can also be customizable.
Welded ConnectionÂ
It is also a simple and economical connection type in project pipelines. Any matched pipe can be welded together with the bellows applied to pipe system. Diameter can start from DN10mm to DN10000mm and material can be carbon steel and all stainless steel including AISI304, AISI321, AISI316, AISI316L,
Features
Absorbs small amounts of axial, lateral, and angular movements
Deflect in any direction
Most economical
Must be guided
Requires main and directional anchors
Data of Expansion Joint
The designed pressure for this expansion joint is 1.0Mpa(or 1.6Mpa,2.0Mpa,2.5Mpa,
4.0Mpa), which can be customized in case of special requirements.
â?¢ Model: DN15-DN8000,
â?¢ Pressure: 0.1Mpa-4.0Mpa
â?¢ Connection: 1, Flange-connecting 2, Pipe-connecting
â?¢ Axial Compensation: 18mm-400mm
â?¢ Standardï¼?GB/T12777-2008Â
â?¢ Working Temperatureï¼?ï¼?196â??ï½?450â??
Application
Our products are widely applied to industrial equipment manufacture and engineering pipe connection of aerospace, marine, petrochemical, refining, power plants, temperature control, information industry, heating, to effectively ensure the high safety performance of transporting the toxic, flammable and explosive media in the pressure pipeline, and to avoid the leak pollution causing the pollution of marine, sky, plants and other environment pollution. The product characteristics are thermostability, high pressure resisting, corrosion resisting, fatigue resisting, resistant to use.
Flexible metal tubes are high-quality industrial materials with excellent anti-corrosion properties, available in complete specifications to meet diverse needs. They are flexible and resistant to pressure, with anti-explosion features, making them ideal for various applications. We offer quantity discounts, customization options, and factory outlet pricing for guaranteed quality and value! if you have any idea No hesitate ,connected with me .
The auto punch bellow forming machine is divided into several ranges: DN100-1200mm, DN100-1600mm, DN1500-5000, customized.
Auto expansion joint machine adopts our patent technology of rotating salver and the cones retract system; FUGE bellow forming machines use Siemens PLC and German Balluff sensors and servo motors to be more precise; the punch bellow forming machine owns 3 working positions and can form 3 bellows at the same time.
The mechanical expansion joint forming machine is powerful enough for multiple layers of bellow and different materials, such as SS, Inconel.
Owing to our rich industrial experience and expertise,we are engaged in manufacturing & exporting a wide range of Canvas Expansion Joints. These are largely used where large amount of movement lateral, axial are required . It can be manufacture to absorb temperature upto 1200C and suitable for low pressure. These Non Metallic Expansion joints are made of various types of material like Fabrics, EPDM, Canvas, Plastic , Multilayer depending upon the application. These Non Metallic can be Round, Rectangular, Square etc.
Features:
Suitable for High Temperature upto 1200C Can absorb large amount of Axial, Lateral Movement. Cost less the Metallic Expansion Joints. Can be used where Metallic Expansion Joints cannot be used. Can be cutomised.
We are pleased to introduce ourselves as one of leading manufacturer & exporter of Rectangular Expansion Joints & Bellows in India. We are among few manufacturer in India who manufacture full range of Expansion Joints--Metallic, Non Metallic, Circular, Rectangular, Square, Fabric, Canvas, EPDM, Multilayer, etc. The material are designed as per customer pressure & temperature rating & application. The end fittings are tailor made as per customer requirements and design.
We are pleased to introduce ourselves as one of leading manufacturer & exporter of EPDM Expansion Joint in India.
We manufacture full range of Expansion Joints--Metallic, Non Metallic, Circular, Rectangular, Square, EPDM, Fabric, Multilayer, Canvas etc suitable for any application.
The material are designed as per customer pressure & temperature rating. The end fittings are tailor made as per customer requirements and design.
These expansion joints are used to absorb vibration, axial, lateral & angular movement in the pipeline.
We are exporting Bellows to more than 20 countries and are receiving repeat orders from most of them.
Type: Single Type, Double Type, BSP/NPT Thread Type
Size Range: DN25-DN1600
Material of Rubber ball: CR, NBR, EPDM, HYPALON, VITON
Material of flange: Galvanized Steel, Stainless Steel
Working temperature: -20â?? to +115â??
Ball length for Single Sphere: 130mm, 150mm, 95mm-300mm
Ball length for Double Sphere: 175mm-345mm
Ball length for Union Type: 200mm for DN15-DN50, 240mm for DN65-DN80.
Thread End Connection: BSP or NPT thread
Flange End Connection: EN1092-1 PN10/PN16, ANSI150, BS4504, AS2129 Table D/E.
Working Pressure: PN6, PN10, PN16, PN25
Application: water, warm water, seawater, weak acids, alkalis, etc...
Easy installation and remove; absorbs vibration, noise and shock
Types: Single Sphere, double-sphere; Flange Type, Union Type
Flange drilling: ANSI class 125/150, DIN PN 10/PN16, JIS 5K/10K
Working pressure: 1.6mPa (16 kgf/cm2)
Working degree: -15 to +115 degrees Celsius
Working medium: Vapour, compressed air, cold & hot water, seawater, oil, weak acid, alkali
Material list:
Body: Neoprene, EPDM, NBR
Lining: Chinlon Cord Fabrics
Frame: Hard Steel Wires
Flange: Carbon Steel.
Expansion joint , stainless stell boy with flange , flange can be fixed or loosened.
Features:
1) nonmetal expansion joint
2) absorbs thermal expansion and shock
3) compensates converting misalignment
4) structure: bellows + flanges+ tied
5) main material, bellowsstainless steel 304; flanges: stainless steel 304 or carbon steel
6) size, diameter and length can be produced as per clients' requirements
Quality expansion joint for sale
Expansion joint
Stainless steel expansion bellow with one flange loosed one fixed .Can be design as clients' requriments.
Features:
1)corrugated pipe gives a flexibility link, allowing it to absorb shock and reduce noise
2) this kind of metal hose is widely used in such industries as:
A) chemicals
B) iron and steel
C) petroleum
D) machinery
E) electric power
F) rubber
G) printing and dyeing
H) medicine
I) foods
J) fire fighting
K) building infrastructure
L) household appliances
3) non-standard metal hoses with all kinds of special connections and special
Materials available
Quality expansion joint for sale
Expansion joint
Carton
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