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Double Sphere Rubber Expansion Joint Flexible Connector for Industrial Pipelines

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.
Component Parts:
Item Part Material
1 Body Outer Layer NR, EPDM, NBR, FKM
2 Body lnner Layer NR, EPDM, NBR, FKM
3 Reinforced Fabric Nylon
4 Wire Steel
5 Flange Zinc Plated/Sprayed CS, SS304, SS316, Cast Steel
Availability:
Quantity:
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  • NHFLEX-B

  • Ninghao

NHFLEX-B TYPE Flanged Double Sphere Flexible Rubber Expansion Joints Pipe Connector Rubber CompensatorDouble Sphere Rubber Compensator Pipeline Expansion Joint for Vibration Absorber

Product Overview

The Double Sphere Rubber Expansion Joint Flexible Connector is an essential component designed to ensure the flexibility and durability of industrial pipeline systems. Primarily used in various industrial settings, it helps absorb movement, minimize vibration, and compensate for misalignment, all while contributing to smoother operation and extended service life of pipelines. This product is a reliable solution for managing thermal expansion, vibration control, and misalignment in piping systems.

Constructed with premium rubber materials such as NR, EPDM, NBR, and FKM, the double sphere rubber expansion joint offers excellent corrosion resistance, chemical stability, and high performance under extreme temperature conditions. It is ideal for use in both sea water and drinking water applications, among others, and is available in multiple flange standards, including DIN, JIS, GOST, and ANSI.


Key Features & Benefits

Superior Corrosion Resistance
The high-quality rubber compounds used ensure outstanding resistance to corrosion, making it perfect for use in water, oil, and gas pipelines. This feature is particularly useful in environments where long-lasting durability is required.

Enhanced Flexibility and System Protection
Its double-sphere design enables the expansion joint to absorb stresses caused by thermal expansion, vibration, and pipeline displacement. This design ensures the integrity of your pipeline system, preventing damage and extending its service life.

Vibration Absorption & Noise Reduction
The double sphere design minimizes vibration and reduces noise levels, creating a quieter and more stable operating environment. This is essential for industries where noise control is crucial for both system efficiency and employee comfort.

Simple Installation and Low Maintenance
Designed for ease of installation, the flexible connector requires minimal maintenance, significantly reducing downtime and service costs. Its user-friendly design ensures quick setup without the need for complicated equipment or expertise


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.


Component Parts

Item Part Material
1 Body Outer Layer NR, EPDM, NBR, FKM
2 Body lnner Layer NR, EPDM, NBR, FKM
3 Reinforced Fabric Nylon
4 Wire Steel
5 Flange Zinc Plated/Sprayed CS, SS304, SS316, Cast Steel


NHFLEX-B TYPE Rubber Joint Size Chart

  SIZE LENGTH Movemont Capablllty
DN F/F Comp. Ext. Lateral Angular
  (mm) (mm) (mm) (mm) (mm) (degree)
  40 175 10 20 20 30
  50 175 10 20 20 30
  65 175 10 20 20 30
  80 175 10 20 20 30
  100 225 15 30 25 30
  125 225 15 30 25 30
  150 225 15 30 25 30
  200 325 20 40 30 30
  250 325 20 40 30 30
  300 325 20 40 30 30
  350 350 20 40 30 30
  400 350 20 40 30 30
  450 350 25 45 30 30
  500 350 25 45 30 30
  600 350 25 45 30 30
* Control units must be used when piping is not properly anchored.
   The rated pressure can be above 2.5MPa, but products will only be sold with control units.
   Pressure rating is based on 30ºC operating temperature. The pressure rating is reduced at higher temperatures.

   Rated pressure in the above table is the maximum "working pressure". Test pressure is 1.5 times "working pressure", Burst pressure is 4 times "work pressure".  


Why Choose Us?

  • Expert Manufacturing: With years of experience in rubber expansion joints, we provide high-quality, customized products that meet industrial standards and requirements.

  • Reliability & Durability: Our products are engineered to withstand extreme conditions, ensuring your pipeline systems are safe, stable, and efficient.

  • Global Reach: Serving industries across the world with fast and reliable delivery. No matter where you are, we provide top-notch service.

  • Cost-Effective: Low maintenance costs, durable performance, and reduced downtime all contribute to the affordability of our products over time.


FAQ

Q1: What is a Double Sphere Rubber Expansion Joint used for?

A: This product is primarily used in industrial pipelines to absorb movement, manage vibration, and compensate for misalignment. It improves pipeline performance and extends service life.


Q2: What are the benefits of the double sphere design?

A: The double sphere design allows for enhanced flexibility and stress distribution, ensuring that axial, lateral, and angular movements are absorbed without damaging the pipeline.


Q3: Can the rubber expansion joint be used in chemical environments?

A: Yes, our rubber expansion joints offer excellent chemical resistance, making them suitable for use in a wide range of industrial applications, including chemical processing.


Q4: How does the product handle vibrations?

A: The design of the double sphere helps absorb vibration and minimize noise, creating a more stable and quieter environment for industrial operations.


Q5: Is the product customizable?

A: Yes, we offer customization in terms of size, material specifications, and flange standards to suit different industrial needs.


Conclusion

The Double Sphere Rubber Expansion Joint Flexible Connector is a highly durable, flexible, and efficient solution for any industrial pipeline system requiring vibration absorption, thermal expansion management, and misalignment compensation. With its corrosion-resistant materials, ease of installation, and low maintenance, it ensures your system runs smoothly for years to come.

Whether for water treatment plants, chemical processing, or marine engineering, this product guarantees reliable, long-term performance, making it the perfect addition to any industrial setup.


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


Company Profile  
    Ningjin NINGHAO Machinery Co.,Ltd. Founded on No November 19, 2010. It is located in No.2 taishan road, econnmic and technological development zone, ningjin county, dezhou city, shandong province. It covers an area of 120 acres, with more than 80 employees, among has all kinds of advanced production and inspection equipment.
    We can offer all kinds of rubber expansion joints. Our products include: single ball flexible rubber expansion joint, double sphere rubber expansion joint, rubber-metal pipe connectors, thread-connection rubber expansion joint and tie rods set for rubber expansion joint. Rubber expansion joint main material: EPDM ,NBR ,NR, FR. The standard of the flange: ANSI150, DIN, JIS10K. The flange material: carbon steel, stainless steel, casting steel.
    We have been in exporting for many years. We have wide business relations in the world. Now the main supply countries: Spain, Italy, Netherlands, Austria, French, Vietnam, India and many other countries. Our customers and clients all think highly of us.
     Last, looks forward to the cooperation with you sincerely!
                             
Double Sphere Rubber Compensator Pipeline Expansion Joint for Vibration Absorber    
Double Sphere Rubber Compensator Pipeline Expansion Joint for Vibration Absorber  

Double Sphere Rubber Compensator Pipeline Expansion Joint for Vibration AbsorberDouble Sphere Rubber Compensator Pipeline Expansion Joint for Vibration Absorber

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Double Sphere Rubber Compensator Pipeline Expansion Joint for Vibration Absorber

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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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   No.2 Taishan Road, Development Zone, Ningjin County, Shandong Province

   Phone: +86-15806526381

                    +86-18561954252
   Skype: rubberjoint1
   Email: njninghaojixie@163.com

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