Universal Tied Bellows Expansion Joint / Bellows Type Expansion Joint

1. Tied Bellows Expansion Joint: The single tied bellows expansion joint features a bellows connected to an end with welded ends or fixed flanges. It incorporates a tie rod system capable of handling pressure thrust, distinct from the single united expansion joint. Primarily designed for absorbing axial displacement and limited lateral displacement, the tie rod acts as a displacement limiter, equipped with a stop device for controlled axial movement. Equipped with two tie rods, it can also manage angular movement within a single plane. This expansion joint is suitable for pipeline systems without main anchors, boasting a simple structure and cost-effectiveness, making it a preferred choice in pipeline installations where applicable.

   • Design Pressure: 0.1~0.25 MPa
   • Design Temperature: -25~800°C
   • Connection Type: Flange/Welding
   • Nominal Diameter: DN100~DN3000 mm [Customizable]
   • Standards: EJMA, ASME, GB/T 12777-2019
   • Customized Materials: 300 series stainless steel, Inconel600, Inconel625, Incoloy800, Incoloy825, FN-2, B315

2. Universal Tied Bellows Expansion Joint: The universal tied bellows expansion joint features two bellows connected by an intermediate pipe, along with tie rods, end plates, spherical and conical washers, and other components. The tie rod system can manage lateral displacement in any plane and withstand pressure thrust from the bellows. Multiple sets of tie rods are evenly distributed around the expansion joint's circumference. Equipped with two 180-degree tie rods, it allows deflection in both angle and lateral direction. However, with three or more tie rods, only lateral deflection is possible.

   • Design Pressure: 0.1~2.5 MPa
   • Design Temperature: -25~800°C
   • Connection Type: Flange/Welding
   • Nominal Diameter: DN100~DN3000 mm [Customizable]
   • 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.