Flange expansion joint

Flange Type Stainless Steel Metal Bellows Expansion Joint / Pipe Compensator

DN80/3"
Stainless steel bellows with flange ends, absorbs thermal expansion and vibration for piping system. Custom DN, pressure, material available, comply with EJMA standard.
Delivery
EXW
minimum order
10 pieces
Supply Ability
100pieces / Day
Country of Origin
CHINA
Stock Time
7Day
Quantity:
US $49.00 - US $549.00 / pieces
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1. Product Overview

Metal bellows expansion joint (also called pipe compensator, flexible joint) relies on the elastic deformation of stainless steel bellows to absorb thermal expansion, mechanical vibration and foundation settlement displacement of pipelines. It relieves internal stress and protects pipeline equipment. This product adopts stainless steel bellows with carbon steel/stainless steel flanges at both ends. Widely used in thermal power, chemical industry, water supply & drainage, steam, petroleum and HVAC piping systems.

2. Product Features

  • Strong displacement compensation: absorbs axial, lateral and angular displacement to avoid pipe damage caused by thermal stress.
  • High temperature & corrosion resistance: stainless steel bellows works steadily under high temperature and corrosive medium, long service life.
  • Vibration & noise reduction: flexible bellows structure blocks vibration transmission and reduces system noise.
  • Easy installation: standard flange connection for fast on-site assembly.
  • Customizable: DN size, pressure rating, wave count, length and material available. Comply with GB/T 12777 and EJMA standards.

3. Main Technical Parameters

ItemSpecification
Nominal Diameter DNDN25 ~ DN3000, customized
Nominal Pressure PN0.25 ~ 2.5 MPa
Working MediumSteam, hot water, oil, gas, corrosive liquid
Bellows Material304 / 316 / 316L stainless steel
Flange MaterialCarbon steel Q235 or stainless steel
Working Temperature-40℃ ~ 450℃ (depends on material)
Connection TypeFlange connection (welded / clamp optional)
Executive StandardGB/T 12777, EJMA
Compensation TypeAxial, lateral, angular, universal

4. Application Industries

IndustryApplication
Thermal PipelineCompensate thermal displacement for steam & hot water network
Chemical IndustryFlexible connection for corrosive medium pipelines
Water Supply & DrainageVibration damping for pump stations and long pipelines
HVAC SystemVibration isolation at pump and unit inlet & outlet
Oil & GasPipeline displacement compensation and safety buffer
 
FAQ
 
a) How can I get more details about your products?
You can send an email to our email address. We will provide catalogue and pictures of our products for your reference.We can also supply pipe fittings, bolt and nut, gaskets etc. We aim to be your piping system solution provider. 
b) How can I get some samples?   
If you need, we will offer you samples for free, but new customers are expected to pay express charge. 
c) Do you provide customized parts? 
Yes, you can give us drawings and we will manufacture accordingly. 
d) To which country have you supplied your products?
We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru , Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.). 
e) I can't see the goods or touch the goods, how can I deal with the risk involved?  
Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.