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Quick Details

  • Material: Stainless Steel
  • Technics: Forged
  • Type: Union
  • Place of Origin: Shandong, China (Mainland)
  • Model Number: ZDL
  • Brand Name: Tongpeng
  • Connection: Other
  • Shape: Other
  • Head Code: Square
  • applicetion: the petrochemical trade
  • corrugation: U type
  • material: stainless steel 316 304

Packaging & Delivery

Packaging Details wooden case or the customer's requirement
Delivery Time 30days


1)ISO9001-2008International Quality Certificated.
2)ASME U type seal
3)bellows expansion joints specially designed for you

:the petroleum, petro-chemistry, chemical industry, electric power, thermal energy, water conservation, metallurgy,   aviation, astronautics, ship, nuclear industry and pressure vessel and so on,

Manufacturing capacity:


DN:                                          8mm-10000mm                                             

Thickness:                             0.15mm-70mm                                             

Forming method                   Hydraulic forming                                           

Pressure(MPa):                     -30 MPa(metallic)   -0.2MPa(nonmetallic)

shape:                                     U   Ω  V   S type Etc.                                        

Temp.(oC):                             -196 to 1400                                                     





Thermal expansion in pipelines,ducts,and vessels which carry hot or cold fluids,or which are exposed to large variation

in ambient temperature, is a major problem conforing designers. As the metal temperature of the pipe, duct, or vessel increases and decreases,its length also varies due to thermal expansion or contraction .Therefore, unless compensation is provided for these dimensional changes, high stresses will be induced in the piping, ducting, or vessel and large forces will be transmitted through the system to  anchors and connected equipment.And your system must run at maximum efficiency.

The specially designed  metal expansion joint can  absorb the different movement as follows:










About us


Shandong Hengtong Expansion Joint Manufacturing Co.ltd which was established with the register capital of 30 million in July.2001, is one of the largest manufactures which are specialized engaged in designation, researching and production of the corrugated pip ,expansion joint and the compensator .
After years of development, the company has successively obtained special equipmentmanufacturing license class A qualification in our country, the United States, ASME \"U\" seal and ISO9001:2008 quality system certification, the eu PED - CE certification is being forensics process.The company has been a tier 1 supplier  of Sinopec and Chinese Chemical Group,the supplier of Petrochina subsidiary Sinopec subsidiary,and China Shenhua Coal to Liquid and Chemical Corporation.







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China (Mainland) | Manufacturer, Trading Company
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