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EPDM Double Sphere Rubber Expansion Joint for Thermal Movement

Our EPDM double sphere rubber expansion joints are manufactured under strict quality control standards to ensure excellent flexibility, durability, and consistent performance. Compared with single-sphere designs, they offer greater movement absorption and longer service life, making them a reliable and cost-effective solution for thermal movement control in modern piping systems.
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  • NHFLEX-B

  • Ninghao

NHFLEX-B TYPE Flanged Double Sphere Flexible Rubber Expansion Joints Pipe Connector Rubber Compensator

The EPDM Double Sphere Rubber Expansion Joint is specifically designed to absorb thermal movement, vibration, and pipeline misalignment in industrial piping systems. Featuring a double-sphere (twin-ball) structure and high-quality EPDM rubber, this expansion joint provides enhanced flexibility, greater movement capacity, and long-term sealing reliability under fluctuating temperature conditions.Double Sphere Rubber Compensator Pipeline Expansion Joint for Vibration Absorber       

The Double Sphere Rubber Joint is a highly adaptable and dependable component used in a wide range of piping systems. Its main purpose is to absorb movement, minimize vibration, and accommodate misalignment within pipelines, promoting smooth operation and extending the system’s lifespan. Crafted from top-quality rubber, this robust product offers excellent resistance to corrosion, chemicals, and extreme temperatures.

        Featuring a double-sphere structure, this rubber bellows provides exceptional flexibility and resilience, enabling it to easily absorb axial, lateral, and angular movements. The dual-sphere design promotes even stress distribution, which helps prevent fatigue and extends the service life of the joint. In addition, it efficiently reduces vibration and noise, thereby improving the overall performance and reliability of the system.

Characteristics:

1. Excellent Corrosion Resistance: Constructed from high-quality rubber materials, these expansion joints offer strong resistance to corrosion and are suitable for use with a wide range of media, including water, oil, and gases.


2. Flexible Elasticity for System Protection: Through their ability to undergo elastic deformation, rubber expansion joints absorb stresses caused by temperature fluctuations, vibrations, and pipe movements—helping to safeguard the pipeline system from potential damage.


 3. Shock Absorption and Noise Reduction: Rubber expansion joints effectively reduce the transmission of vibrations and noise in pipeline systems, providing a quieter and more stable working environment.  
 
 4. Easy Installation and Maintenance: Rubber expansion joints have a simple structure, making them easy to install and maintain. They also have low maintenance costs.


Product Parameters  

Standard Specification:  

Max.Working Pressure 2.5Mpa
Operating Temperature -20ºC-100ºC
Vacuum KPa (mmHg) 44.9(350)
Applicable Media Sea Water, Drinking Water, etc.
Flange Standard DIN, JIS, GOST, ANSI, etc.

Main Products  

Double Sphere Rubber Compensator Pipeline Expansion Joint for Vibration Absorber

Compensating for Thermal Expansion and Contraction: Rubber expansion joints compensate for thermal expansion and contraction caused by temperature variations in the pipeline. They prevent excessive stress on the pipeline system due to temperature changes, thereby protecting the pipes from damage.

  Absorbing Vibrations and Impacts: Rubber expansion joints absorb stresses caused by vibrations and impacts in the pipeline system, reducing the transmission of vibrations and noise. This helps protect the pipeline and related equipment from damage.

  Compensating for Pipe Movements: During installation and operation, pipeline systems may experience certain degrees of pipe movement. Rubber expansion joints compensate for these movements, ensuring the proper functioning of the pipeline system.

  Leak Prevention: Rubber expansion joints provide sealing performance in pipeline systems, reducing the risk of leaks and ensuring the safe operation of the pipelines.

Double Sphere Rubber Compensator Pipeline Expansion Joint for Vibration Absorber


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Ningjin NINGHAO Machinery Co.,Ltd. Founded on November 19,2010.It is located in no.2 taishan road,economic and technological development zone,ningjin county,dezhou city, shandong province.It covers an area of 120 mu,with more than 80 employees,among them,21 technicians.

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