Share on (60360609274):
Product name : Bellow Expansion Joint/Compensator/Metal bellow expansion joint
Connection type: Connection pipe
Connection pipe material: Stainless steel/Carbon steel
Bellow material : Stainless steel SS304/SS316L/SS321
Place of Origin: Jiangsu, China (Mainland)
Brand Name: Daming
Model Number: DN15~DN1200
Length : As customer required
Connection : Welding
Type: Coupling
Technics: Forged
Shape: Equal
Certification: ISO9001:2008 , TS
Welded Line Type: Longitudinal
Temperature : -196 to +600℃
Working pressure : PN10 PN16 PN25
Medium: air,oil,water,gas, chemical,powder etc
Movements: Axial/Lateral/Angular
Business Type : Manufacture
Customized: Yes
HS code:73072900
Bellow Expansion Joint
Daming Corrugated Pipe Co,.Ltd is one of the leading manufacturers of expansion joints , metallic bellows,flexible metal hose for 10 more years in China.
We offer all types of metal pipe expansion joints. Each type has advantages and limitations that can provide flexibility, load reduction, structural integrity and reliability required in a piping system.
Metal pipe expansion joints can withstand the design temperatures, pressures, as well as, provide the capacity necessary to absorb thermal growth of the piping system. The thermal movement required can be axial, lateral or angular. In some cases, the pressure thrust of a pipe expansion joint must be restrained by the use of tie rods, hinges or gimbal while allowing thebellows to move through its design deflections.
Construction and specifications
| ||
NO.S | ITEMS | MATERIALS |
1 | Bellow | Stainless steel SS304,SS316L,SS321 |
2 | Connection tube | Stainless steel /Carbon steel |
3 | Welding | Stainless steel welding wire |
Features
1.To absorb effectively vibration, noise,thermal expansion from pipeline system;
2.To resolve minor deviation because of piping connecting and eliminate the pipeline residual stress,compensate axial movements;
3. The bellows can be single,two-ply and multiply in different sizes using precision forming technology.
4.Applied to repeated motion in high temperature areas,good anti-fatigue performance;
5.Good flexibility,resistant to high temperature, resistant to corrosion.
6.Applied in the fields of petroleum,chemical industry,aerospace,metallurgy,electricity, gas,building,mechanical, construction,iron and steel,paper making,fabric,medicine,food and vessels ect.
Technique parameter
Name | Bellow expansion joint/bellows compensator/shock absorber |
Size | 15-1600mm |
Axial direction compensate | 10-400mm |
Work temperature | -196~420 deg.C |
Length | 100-2000mm or as custom request |
Connection type | Flange/Connection tube/Quick joint |
Pressure | 0.6Mpa/1.0Mpa/1.6Mpa/2.0Mpa/2.5Mpa |
Standard | ASME, GB/T12777-2008 |
Material | Stainless steel , carbon steel , high-temperature steel |
Certification | ISO9001:2008 / TS |
Features | Large amount of compensation and long life |
Delivery time | 1-10 days according to your quantity |
Application
Pipes with axial displacement by temperature or pressure changes
Heating and air conditioning installation
Hot water and fire protection system
Compressors inlet and outlet
Diesel engine sets/Pipelines/Turbines/Blowers/Vacuum pumps/Heat exchangers
Product details show

FAQ
Who Are DAMING ?
DAMING is a family owned manufacturing company specialising in the correct design, manufacture and supply of stainless steel flexible hoses, bellows ,expansion joints and pipe fabrications for 10 more years in China.
Can You Manufacture Metallic Bellow Expansion Joint To My Requirements?
Yes, we can tailor our metallic bellow expansion joint to your requirements, just get in touch for more information.
What is axial deflection? |
Axial deflection refers to movement of the expansion joint in regards to changes in the dimensional length of the bellows parallel to the center line of the expansion joint.
Axial Deflection |
What is the Role of Limit Rods?
There are always several limit rods on limit expansion joints or bellows. What is the role played by limit rods? Well, limit rods may be used in an expansion joint design to limit the axial compression or expansion. They allow the expansion joint to move over a range according to where the nut stops are placed along the rods. Limit rods are used to prevent bellows over-extension while restraining the full pressure thrust of the system.
Ways to Prevent and Minimize Expansion Joint Failure
There are various actions that can be taken to prevent and minimize expansion joint failure. During installation, prevent any damage to the bellows by carefully following the instructions furnished by the manufacturer.
After installation, carefully inspect the entire piping system to see if any damage occurred during installation, if the expansion joint is in the proper location, and if the expansion joint flow direction and positioning is correct.
Also, periodically inspect the expansion joint throughout the operating life of the system in order to check for external corrosion, loosening of threaded fasteners and deterioration of anchors, guides, and other hardware.
Are you the manufacture who do business via Alibaba Online Transaction?
Yes, we can make the deal through Alibaba Trade Assurance.
It means you will receive 100% refund of the Trade Assurance Amount for orders not meeting agreed delievery or quality terms.
What is your payment terms ?
T/T(30% initial payment in advance, 70% in balance should be received before shipment); Western Union, L/C at sight or Paypal.
Are you OEM manufacture ?
Yes, OEM is OK for us .
How about your Inspection & Packaging?
We will do pressure inspection of each goods before packaging.
Standard Export Wooden case or Carton box Packaging.
How about your shipment?
We can delivery both by sea and air. Such as EMS, FedEx, UPS, DHL, TNT, Less than Container Load, 20ft & 40ft Container.
Can we visit your factory in China ?
Very welcome ! You can fly to Shanghai ,Yangtai,Wuxi,Nanjing air port firstly,Yangtai air port is near our company most, then contact us ,we will arrange pick you up here .
Why choose us ?
We are the professional manufacture which produce bellow expansion joints ,flexible metal hose ,Sleeve /Rotary compensator for 10 more years in China.
100% QC inspection Before Shippment.
Best price based on best quality and best service !
Expansion joint Installation and Maintenance Guide
Do's and Don'ts ,from the "Standards of the Expansion Joint Manufacturers Association, Inc"

Refer to EJMA Standard for proper guide spacing and anchor recommendations.
NOTE: The manufacturer's warranty may be void if improper installation procedures have been used.
Customers & Quality Approvals







Since 1995, Jiangsu Daming Corrugated Pipe Co,.Ltd has grown up to be the leading professional manufacture of corrugated pipe, expansion joint in China. Our company is specialized in the design, manufacture, market and service of integrated solutions of flexible pipe connection. The headquarter of Daming Corrugated Pipe is located in Jiangyan City,Jiangsu Province,China, which is about 3 hours from Shanghai. We have over 100 employees,including 20 skilled engineers and high trained technicians. It has an area of nearly 12,000 square meters produce center and current annual production is valued at more than USD4,000,000.
Currently, Daming products mainly include corrugated pipe, flexible metal hose, bellows expansion joint, fabric expansion joint, rotary compensator,sleeve type compensator, PTFE bellows,fire sprinkler hose,stainless steel braid etc. The products are widely applied in the fields of petroleum,chemical industry,aerospace,smelt,electricity, building,mechanical,iron and steel,paper making, fabric,gas,medicine,food and vessels ect. The sales market and customers are across the world and products have been exported to Southeast Asia,Middle East,Europe and America ect where being highly relied on and complimented by customers in domestic and oversea.
Company produce flexbile metal hose in accordance with the GB/T14525-2010 standard production, has the advantages of light weight,small volume,corrosion resistant,high tempeture,high pressure, good flexibility, strong seal,and long life. We supply expansion joint according to American standard of EJMA ,ASME and GB/12777-2008,it can bear high pressure, various displacement , have large amount of compensation and function of noise reduction ,damping. The products in our company are ISO9001-2008 quality system certified.
Based on the pragmatic attitude of “Professional, Focus, Integrity”, we will consistently strive for excellent products, increase product content of science and technology, and supply customers with best products and services.



New products from manufacturers at wholesale prices