Single And Universal Tied Bellows Expansion Joint Diameter DN100~DN3000mm

Tied Bellows Expansion Joint

• The single tied bellows expansion joint

The single tied bellows expansion joint consists of a bellows connected to an end with either welded ends or the end of fixed flanges. Similar to the single united expansion joint, the difference lies in the inclusion of a tie rod system capable of withstanding pressure thrust. It is primarily used to absorb axial displacement and a small amount of lateral displacement. The tie rod serves as a limiting displacement bar and is equipped with a stop device, allowing axial displacement to a set position. When equipped with two tie rods, it can also absorb angular movement within a single plane. This type of expansion joint is suitable for pipeline systems without main anchors.Due to its simple structure and low cost, making it a high-priority consideration wherever feasible in pipeline installations.

Design Pressure: 0.1~0.25MPa

Design Temperature: -25~800°C

Connection Type: Flange/Welding

Nominal Diameter: DN100~DN3000mm [Customizable to any size]

Standards: EJMA, ASME, GB/T 12777-2019

Customized Materials: 300 series stainless steel, Inconel600, Inconel625, Incoloy800, Incoloy825, FN-2, B315

• Universal Tied Bellows Expansion Joint:

The universal tied bellows expansion joint consists of two bellows connected by a intermediate pipe, along with tie rods, end plates, spherical and conical washers and other structural components. The tie rod system can absorb lateral displacement in any plane and withstand pressure thrust from the bellows. Tie rods are arranged in two or more sets uniformly distributed around the circumference of the expansion joint.When equipped with two 180-degree tie rods, the expansion joint can freely deflect in both angle and lateral direction. However, when three or more tie rods are installed, only lateral deflection is possible.

Design Pressure: 0.1~2.5MPa

Design Temperature: -25~800°C

Connection Type: Flange/Welding

Nominal Diameter: DN100~DN3000mm [Customizable to any size]

Standards: EJMA, ASME, GB/T 12777-2019

Customized Materials: 300 series stainless steel, Inconel600, Inconel625, Incoloy800, Incoloy825, FN-2, B315

Established in 2018 with a registered capital of 300 million yuan, Beijing Hownew Energy Technology Group Co., Ltd. owns three holding subsidiaries: Cangzhou Yuantuo Piping Equipment Co., Ltd., Beijing Shenfupeng Piping Equipment Development Co., Ltd., and Hownew Technology (Hong Kong) Co., Ltd. Hownew Group is a comprehensive enterprise integrating technology research and development, product manufacturing, production and sales, plus installation and maintenance. It specializes in providing professional piping and pipe fittings, as well as piping design, manufacturing, and installation and maintenance services for domestic and international boiler, power, chemical, gas, and solar thermal industries.
The company always adheres to the working attitude of "honesty and realism, professionalism and concentration, pragmatism and efficiency", and takes technical strength as the foundation, resource background as the basis for development, and customer needs as the future trend. It closely follows the characteristics of industry technology and industry development, and continuously optimizes the design. The company is dedicated to providing customers with the highest quality and most satisfactory services.

Hownew Technology (Hong Kong) Co., Ltd.: In 2019, in response to the national initiative of "One Belt and One Road" and the Group's expansion into international markets, Hownew Group established Hownew Technology (Hong Kong) Co., Ltd. in Hong Kong. This serves as the Group's platform for international business development. The company mainly offers pipes and pipe fittings (carbon steel, stainless steel, alloy steel) such as elbows, tees, bends, reducers, and crosses to industries such as power, petrochemical, chemical, petroleum, gas, solar thermal, and shipbuilding. All products adhere to American standard ASME (ANSI), European standard EN, German standard DIN, Japanese standard (JIS), and can also be customized according to specific customer needs.