1)ISO9001-2008International Quality Certificated.
2)ASME U type seal
3)bellows expansion joints specially designed for you
SINGLE TYPE EXPANSION JOINT-UN TIED
This is the simplest form of expansion joint, of single bellows construction, designed to absorb all of the movements of the pipe section in which it is installed. According to operated pressure of a device, this model is manufactured with or without the shrink ring.
Easy to install
Absorbs all three types of movement.
Since the company established, we are specialized in research,development and manufacture of expansion joints with holding the learning attitude and adhering to the innovation and development . We have made great progress in many aspects such as the manufacturing technology,product quality and management. The company has obtained the qualification -Manufacture License of Special Equipment People’s Republic of China , the US ASME certification, EU PED - CE certification ,and five classification society certification: China CCS , United States ABS, France BV, Korea Kr, Norway DNV. In the application material,except the traditional expansion joint material, there is a major breakthrough in non-ferrous metal materials and non-ferrous metal alloy materials , especially in nickel and nickel base alloy, titanium and titanium alloy, zirconium and zirconium alloy ,tantalum and tantalum alloy, Niobium and Niobium alloy and other materials.
Our products are widely used in those industrials as follows: petroleum, petrochemical, offshore Oil , chemical, salt chemical industry, chemical industry, fertilizer, aviation, nuclear energy, shipbuilding, electric power, metallurgy, thermal network ,high-voltage electrical appliances, medicine, building materials, sea water desalination ,pressure vessel industrials etc , and they are fully recognized by domestic and foreign customers.
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:
Shandong Hengtong Expansion Joints Manufacturing Co., Ltd. is located at the foot of the mountain Tai, which is the head of the five mountains "World Double Inheritance". We are a large-scale enterprise which specializes in designing, researching, developing and manufacturing expansion joints of corrugated pipes. We have "People's Republic of China Special Equipment (pressure piping component) Manufacturing Permit", and passed ISO9001 quality control system certification. ... View detail