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RUBBER FLEXIBLE
ENHANCE YOUR SYSTEMS WITH OUR RUBBER FLEXIBLE
Experience seamless integration and long-lasting performance with Ningjin NINGHAO's premium Rubber Flexible Joints, perfect for piping, HVAC, and industrial applications.
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The Future Of Industrial Solutions With Rubber Flexible Joints

Rubber flexible joints are changing the way industries manage fluid transfer and vibration control. As a more reliable and efficient solution, these joints are essential in multiple applications such as chemical processing, construction, and transportation. As industry's demand for flexibility and durability in piping systems continues to increase, rubber flexible joints are an ideal choice. Not only do they absorb shock and vibration, but they can also adapt to pipe misalignment, making them ideal for daily operations and complex environments. Ningjin Ninghao Machinery Co., Ltd., as a professional rubber expansion joint manufacturer, is committed to providing high-quality products and an excellent user experience. Whether it is industrial applications, environmental control systems, or transportation needs, our rubber flexible joints can perfectly meet your diverse needs.

Types Of Rubber Flexible Joints

Shock Absorption Single Ball Flexible Rubber Compensator Expansion Joint
Shock Absorption Single Ball Flexible Rubber Compensator Expansion Joint
Techical Features:
1. Connection Ends: Flange Drilling to BS EN 1092-2:1997
2. Working Pressure: PN10/16
3. Temperature Range: 0°C- 80°C
4.Vacuum Capacity: 700MM/HG
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NBR Flanged DN250 Single Sphere Rubber Expansion Joint for Water System
NBR Flanged DN250 Single Sphere Rubber Expansion Joint for Water System
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
2 Body lnner Layer NR, EPDM, NBR
3 Reinforced Fabric Nylon
4 Wire Steel
5 Flange Zinc Plated/Sprayed CS, SS304, SS316, Cast Steel
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Single Sphere Rubber Expansion Joint for Anti Vibration
Single Sphere Rubber Expansion Joint for Anti Vibration
Techical Features:
1. Connection Ends: Flange Drilling to BS EN 1092-2:1997
2. Working Pressure: PN10/16
3. Temperature Range: 0°C- 80°C
4.Vacuum Capacity: 700MM/HG
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Pn10 ANSI Flanged Rubber Expansion Joint EPDM Pipe Connector
Pn10 ANSI Flanged Rubber Expansion Joint EPDM Pipe Connector
Techical Features:
1. Connection Ends: Flange Drilling to BS EN 1092-2:1997
2. Working Pressure: PN10/16
3. Temperature Range: 0°C- 80°C
4.Vacuum Capacity: 700MM/HG
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Industrial NBR Rubber Expansion Joint for Thermal Movement
Industrial NBR Rubber Expansion Joint for Thermal Movement

Industrial NBR Rubber Expansion Joint for Thermal Movement - High-Performance Vibration Absorption & Thermal Compensation

Designed for industrial applications, this NBR rubber expansion joint effectively absorbs vibrations and compensates for thermal movement with superior durability. It features high-pressure resistance, vacuum stability, and corrosion-resistant materials for long-term reliability.

  • **Material Construction**: EPDM rubber (inner/outer), galvanized carbon steel flange, nylon fabric reinforcement
  • **Technical Compliance**: Flange drilling to BS EN 1092-2:1997 standard
  • **Performance Range**: Working pressure PN10/16, temperature resistance 0°C–80°C, vacuum capacity 700mm/Hg
  • **Customization**: Available upon request for non-standard material specifications
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EPDM Rubber Single Ball Flexible Joint for Shock Absorption
EPDM Rubber Single Ball Flexible Joint for Shock Absorption
Techical Features:
1. Connection Ends: Flange Drilling to BS EN 1092-2:1997
2. Working Pressure: PN10/16
3. Temperature Range: 0°C- 80°C
4.Vacuum Capacity: 700MM/HG
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NBR Rubber Expansion Joint for Hot Water Applications
NBR Rubber Expansion Joint for Hot Water Applications
Techical Features:
1. Connection Ends: Flange Drilling to BS EN 1092-2:1997
2. Working Pressure: PN10/16
3. Temperature Range: 0°C- 80°C
4.Vacuum Capacity: 700MM/HG
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Rubber Expansion Joint Shock Absorber Flexible Rubber Compensator
Rubber Expansion Joint Shock Absorber Flexible Rubber Compensator
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
2 Body lnner Layer NR, EPDM, NBR
3 Reinforced Fabric Nylon
4 Wire Steel
5 Flange Zinc Plated/Sprayed CS, SS304, SS316, Cast Steel
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6inch EPDM Rubber Expansion Joint Flexible Rubber Compensator
6inch EPDM Rubber Expansion Joint Flexible Rubber Compensator

The NHFLEX-A Type 6-inch EPDM Rubber Expansion Joint is a high-performance flexible compensator designed to absorb vibrations, reduce noise, and accommodate thermal expansion in pipeline systems. Its corrosion-resistant EPDM construction ensures durability in harsh environments while maintaining excellent elasticity for stress absorption.

  • Max. working pressure: 2.5MPa | Operating temperature: -20°C to 100°C
  • Vacuum resistance: 44.9kPa (350mmHg) | Flange standards: DIN, JIS, GOST, ANSI
  • Multi-layer construction: EPDM/NBR rubber body with nylon reinforcement and steel wire
  • Wide media compatibility: seawater, drinking water, weak acids, and soda fluids
  • Applications: pump/valve connections, HVAC systems, and firefighting equipment
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HVAC Rubber Expansion Joint for High Temperature
HVAC Rubber Expansion Joint for High Temperature

HVAC High-Temperature Rubber Expansion Joint for Thermal Movement & Vibration Control

Engineered for demanding HVAC systems, our rubber expansion joints absorb thermal expansion, vibration, and mechanical movement while providing superior heat resistance and noise reduction. Ideal for high-temperature applications, they outperform metal compensators with easier installation, lower maintenance, and quieter operation.

  • Heat-resistant elastomers withstand temperatures up to 100°C (-20°C to 100°C range)
  • Absorbs axial/lateral/angular movements to prevent pipeline stress and leakage
  • Reduces vibration transmission and system noise for stable operation
  • Customizable in size, pressure class (2.5MPa max), flange standards (DIN/JIS/ANSI), and rubber compounds
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Flexible Flanged Rubber Single Ball Expansion Joint for Water Supply Pipelines
Flexible Flanged Rubber Single Ball Expansion Joint for Water Supply Pipelines
Techical Features:
1. Connection Ends: Flange Drilling to BS EN 1092-2:1997
2. Working Pressure: PN10/16
3. Temperature Range: 0°C- 80°C
4.Vacuum Capacity: 700MM/HG
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Neoprene Rubber Expansion Joint with Carbon Steel Flanges
Neoprene Rubber Expansion Joint with Carbon Steel Flanges

High-performance Neoprene Rubber Expansion Joint with Carbon Steel Flanges for superior vibration absorption and pipeline misalignment compensation. Engineered with a double-sphere design for enhanced flexibility and stress distribution, ensuring long-term durability in demanding industrial applications.

  • Max. working pressure: 2.5MPa | Operating temperature: -20°C to 100°C
  • Vacuum resistance: 44.9 KPa (350 mmHg) | Compatible with seawater, drinking water
  • Multi-layer construction: NR/EPDM/NBR/FKM rubber with nylon reinforcement
  • Flange options: Zinc-plated carbon steel, SS304, SS316 | Compliant with DIN/JIS/GOST/ANSI standards
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Double Sphere Rubber Expansion Joint Flexible Connector for Industrial Pipelines
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
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Neoprene Rubber Expansion Joint with Carbon Steel Flanges
Neoprene Rubber Expansion Joint with Carbon Steel Flanges
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
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Pn25 Double Sphere Rubber Expansion Joint for Industrial Systems
Pn25 Double Sphere Rubber Expansion Joint for Industrial Systems
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
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Flanged Pipeline Expansion Joint NBR Rubber Compensator
Flanged Pipeline Expansion Joint NBR Rubber Compensator
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
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Double Sphere EPDM Rubber Expansion Joints for HVAC
Double Sphere EPDM Rubber Expansion Joints for HVAC
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
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HVAC Double Sphere Rubber Expansion Joint with SS304 Flanges
HVAC Double Sphere Rubber Expansion Joint with SS304 Flanges
The HVAC Double Sphere Rubber Expansion Joint with SS304 Flanges delivers maximum flexibility, vibration isolation, and corrosion resistance for demanding HVAC systems. Its double-sphere design efficiently absorbs thermal movement, while SS304 stainless steel flanges ensure long-term reliability and leak-free performance.
 
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EPDM Double Sphere Rubber Expansion Joint for Thermal Movement
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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Double Sphere Rubber Expansion Joint for HVAC Chilled Water Systems
Double Sphere Rubber Expansion Joint for HVAC Chilled Water Systems
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
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NBR JIS10K Flanged Rubber Expansion Joint for Petrochemical Industries
NBR JIS10K Flanged Rubber Expansion Joint for Petrochemical Industries
Our products are manufactured under strict quality control standards to meet the safety and performance requirements of petrochemical facilities. Compared with metal compensators, this rubber expansion joint provides superior vibration isolation, easier installation, and lower total lifecycle cost while maintaining excellent resistance to oil-based media.
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HVAC DN65 Double Sphere Rubber Expansion Joint
HVAC DN65 Double Sphere Rubber Expansion Joint

HVAC DN65 Double Sphere Rubber Expansion Joint - High-Performance Pipe Connector for Vibration Absorption & Thermal Movement Compensation

The HVAC DN65 Double Sphere Rubber Expansion Joint is engineered to absorb pipeline movements, reduce vibrations, and compensate for misalignments in HVAC and industrial piping systems. Its dual-sphere design ensures superior flexibility and stress distribution, while high-quality rubber materials provide excellent corrosion resistance and durability across wide temperature ranges.

  • Max. Working Pressure: 2.5 MPa | Operating Temperature: -20°C to 100°C
  • Compatible Media: Seawater, drinking water, oils, and gases
  • Flange Standards: DIN, JIS, GOST, ANSI | Material Options: EPDM, NBR, FKM
  • Features: Shock absorption, noise reduction, and easy installation for low-maintenance operation
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Industrial Rubber Expansion Joint DN350 Pipe Compensator
Industrial Rubber Expansion Joint DN350 Pipe Compensator
The DN350 Industrial Rubber Expansion Joint is a high-performance pipe compensator designed to effectively absorb vibration, noise, thermal expansion, and pipeline misalignment in industrial piping systems. Manufactured from premium elastomer materials and reinforced for strength and durability, it ensures long-term, stable operation even under demanding working conditions.
Looking for a reliable DN350 rubber expansion joint supplier?
Contact us today for technical support, drawings, samples, or a competitive quotation tailored to your project needs.
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DN100 EPDM Double Sphere Rubber Joint for Water Systems
DN100 EPDM Double Sphere Rubber Joint for Water Systems
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
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DN200 Double Sphere Rubber Expansion Joint Pipe Compensator
DN200 Double Sphere Rubber Expansion Joint Pipe Compensator
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
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Rubber Expansion Joint Flanged NBR Rubber Compensator
Rubber Expansion Joint Flanged NBR Rubber Compensator
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
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Flexible Double Ball Rubber Expansion Joint for Noise Reduction
Flexible Double Ball Rubber Expansion Joint for Noise Reduction
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
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Rubber Expansion Joint Flanged NBR Rubber Compensator
Rubber Expansion Joint Flanged NBR Rubber Compensator

The NHFLEX-B Type Flanged NBR Rubber Expansion Joint is a high-performance compensator designed to absorb movement, reduce vibration, and correct misalignment in piping systems. Engineered with premium NBR rubber and reinforced construction, it delivers exceptional durability, corrosion resistance, and temperature stability for demanding industrial applications.

  • Max. Working Pressure: 2.5MPa | Operating Temperature: -20°C to 100°C
  • Vacuum Resistance: 44.9kPa (350mmHg) | Compliant with DIN/JIS/GOST/ANSI standards
  • Multi-layer construction: NBR/EPDM/FKM rubber body with nylon reinforcement and steel wire
  • Available flange materials: Zinc-plated CS, SS304, SS316, or cast steel
  • Ideal for seawater, drinking water, and various media applications
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Carbon Steel Flanged Axial Compensator Metal Pipe Connector
Carbon Steel Flanged Axial Compensator Metal Pipe Connector
The Carbon Steel Flanged Axial Compensator Metal Pipe Connector is a dependable, high-performance solution for industrial pipeline systems requiring axial flexibility, robust mechanical strength, and reliable sealing. Engineered for demanding environments, it delivers long-term performance, operational safety, and installation convenience.
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Flanged Pipeline Expansion Joint NBR Rubber Compensator
Flanged Pipeline Expansion Joint NBR Rubber Compensator

The NHFLEX-B Flanged Pipeline Expansion Joint NBR Rubber Compensator is engineered to absorb axial, lateral, and angular movements while reducing vibration and noise in piping systems. Its NBR construction ensures superior resistance to oils, fuels, and hydrocarbons, making it ideal for industrial fluid and petrochemical applications.

  • Max. working pressure: 2.5MPa with vacuum resistance up to 44.9KPa (350mmHg)
  • Temperature range: -20°C to 100°C, compatible with seawater and drinking water
  • Multi-layer construction: NBR rubber body with nylon reinforcement and steel wire
  • Flange options: Zinc-plated/Sprayed CS, SS304, SS316, or Cast Steel (DIN/JIS/GOST/ANSI compliant)
  • Absorbs pipeline misalignment and protects connected equipment from stress damage
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EPDM Rubber Pipe Expansion Joint with SS Flanges
EPDM Rubber Pipe Expansion Joint with SS Flanges
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
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EPDM DN100 Rubber Expansion Connector with JIS10K Flanges
EPDM DN100 Rubber Expansion Connector with JIS10K Flanges
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
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PN16 Anti Vibration Rubber Metal Pipe Connectors
PN16 Anti Vibration Rubber Metal Pipe Connectors
Standard Specification:
Max.Working Pressure:   1.0Mpa
Operating Temperature:   -20ºC-100ºC
Applicable Media:   Sea Water, Drinking Water, etc.
Flange Standard:   DIN PN10 PN16
Component Parts:
Item Part Material
1 Body:   NR, EPDM, NBR
2 Flange:   Cast Steel
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High Duty Metal Pipe Rubber Connector Axial Compensator
High Duty Metal Pipe Rubber Connector Axial Compensator
Standard Specification:
Max.Working Pressure:   1.0Mpa
Operating Temperature:   -20ºC-100ºC
Applicable Media:   Sea Water, Drinking Water, etc.
Flange Standard:   DIN PN10 PN16
Component Parts:
Item Part Material
1 Body:   NR, EPDM, NBR
2 Flange:   Cast Steel
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Vibration Absorption Rubber Metal Pipe Connector
Vibration Absorption Rubber Metal Pipe Connector
Standard Specification:
Max.Working Pressure:   1.0Mpa
Operating Temperature:   -20ºC-100ºC
Applicable Media:   Sea Water, Drinking Water, etc.
Flange Standard:   DIN PN10 PN16
Component Parts:
Item Part Material
1 Body:   NR, EPDM, NBR
2 Flange:   Cast Steel
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Rubber Metal Pipe Connector for Chemical Processing
Rubber Metal Pipe Connector for Chemical Processing
Standard Specification:
Max.Working Pressure:   1.0Mpa
Operating Temperature:   -20ºC-100ºC
Applicable Media:   Sea Water, Drinking Water, etc.
Flange Standard:   DIN PN10 PN16
Component Parts:
Item Part Material
1 Body:   NR, EPDM, NBR
2 Flange:   Cast Steel
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BSPT NPT Carbon Steel Union Thread Connection Rubber Expansion Joint
BSPT NPT Carbon Steel Union Thread Connection Rubber Expansion Joint
Techical Features:
1.Thread: ISO 7-1
2.Working Pressure: PN10/16
3.Temperature Range: 0°C - 80°C
4.Vacuum Capacity: 500MMHG
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BSPT Union EPDM Rubber Expansion Joint for Shock Absorption
BSPT Union EPDM Rubber Expansion Joint for Shock Absorption

Model NO.    NHFLEX-DTYPE
Product Name:    Thread Connection Rubber Joint with Union Ends
Union Standard:   BSPT, NPT
Union Material:    Carbon Steel, Stainless Steel, Bronze, Cast Iron
Union Surface:    Galvanized (Zinc Plated) or Spraying
Reinforced:    Nylon Fabric Reinforced
Transport Package:     Carton Packaging
Specification:    DN20-DN80
Trademark:    OEM
Origin:    China
HS Code:    4009120000
Production Capacity:    1000000PCS
 
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DN80 BSPT Threaded Connection Rubber Expansion Joint
DN80 BSPT Threaded Connection Rubber Expansion Joint

Model NO.    NHFLEX-DTYPE
Product Name:    Thread Connection Rubber Joint with Union Ends
Union Standard:   BSPT, NPT
Union Material:    Carbon Steel, Stainless Steel, Bronze, Cast Iron
Union Surface:    Galvanized (Zinc Plated) or Spraying
Reinforced:    Nylon Fabric Reinforced
Transport Package:     Carton Packaging
Specification:    DN20-DN80
Trademark:    OEM
Origin:    China
HS Code:    4009120000
Production Capacity:    1000000PCS
 
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Screw Thread Flexible Rubber Coupling Expansion Joint
Screw Thread Flexible Rubber Coupling Expansion Joint

Model NO.    NHFLEX-DTYPE
Product Name:    Thread Connection Rubber Joint with Union Ends
Union Standard:   BSPT, NPT
Union Material:    Carbon Steel, Stainless Steel, Bronze, Cast Iron
Union Surface:    Galvanized (Zinc Plated) or Spraying
Reinforced:    Nylon Fabric Reinforced
Transport Package:     Carton Packaging
Specification:    DN20-DN80
Trademark:    OEM
Origin:    China
HS Code:    4009120000
Production Capacity:    1000000PCS
 
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DN65 EPDM Threaded Rubber Joint for Pipe Connections
DN65 EPDM Threaded Rubber Joint for Pipe Connections

Model NO.    NHFLEX-DTYPE
Product Name:    Thread Connection Rubber Joint with Union Ends
Union Standard:   BSPT, NPT
Union Material:    Carbon Steel, Stainless Steel, Bronze, Cast Iron
Union Surface:    Galvanized (Zinc Plated) or Spraying
Reinforced:    Nylon Fabric Reinforced
Transport Package:     Carton Packaging
Specification:    DN20-DN80
Trademark:    OEM
Origin:    China
HS Code:    4009120000
Production Capacity:    1000000PCS
 
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DN65 Screw Threaded Rubber Flexible Joint Pipe Connector
DN65 Screw Threaded Rubber Flexible Joint Pipe Connector
The DN65 Screw Threaded Rubber Flexible Joint Pipe Connector is designed to deliver installation convenience, operational protection, and long-term reliability in compact piping systems. It is especially suitable for applications where flanged joints are impractical or where frequent maintenance is required.
Contact us now for technical data, drawings, or a fast quotation tailored to your application.
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Union Rubber Joint Cast Iron Oil Rubber Expansion Joint
Union Rubber Joint Cast Iron Oil Rubber Expansion Joint

Union Rubber Joint Cast Iron Oil Rubber Expansion Joint

Oil-Resistant Rubber Expansion Joint for Industrial Pipelines

High-Performance Cast Iron Oil Rubber Expansion Joint

The Union Rubber Joint Cast Iron Oil Rubber Expansion Joint is a heavy-duty flexible connector designed for oil, fuel, and petroleum pipeline systems. Its oil-resistant rubber body and cast iron union fittings ensure superior sealing, vibration absorption, and long-term reliability in demanding conditions. Ideal for thermal expansion compensation and leak prevention in industrial applications.

  • Oil-resistant rubber (NBR standard, EPDM/NR optional) for durability in aggressive media
  • Absorbs vibration, axial displacement, and misalignment (DN15–DN300 sizes available)
  • High-pressure rating (PN10–PN25) and temperature range (-20°C to +120°C)
  • Cast iron union fittings (ductile iron optional) for robust pipeline connections
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Union Vibration Absorber Screwed Connection Rubber Joint
Union Vibration Absorber Screwed Connection Rubber Joint

Model NO.    NHFLEX-DTYPE
Product Name:    Thread Connection Rubber Joint with Union Ends
Union Standard:   BSPT, NPT
Union Material:    Carbon Steel, Stainless Steel, Bronze, Cast Iron
Union Surface:    Galvanized (Zinc Plated) or Spraying
Reinforced:    Nylon Fabric Reinforced
Transport Package:     Carton Packaging
Specification:    DN20-DN80
Trademark:    OEM
Origin:    China
HS Code:    4009120000
Production Capacity:    1000000PCS
 
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Threaded Rubber Flex Joint EPDM Pipe Connector
Threaded Rubber Flex Joint EPDM Pipe Connector

Model NO.    NHFLEX-DTYPE
Product Name:    Thread Connection Rubber Joint with Union Ends
Union Standard:   BSPT, NPT
Union Material:    Carbon Steel, Stainless Steel, Bronze, Cast Iron
Union Surface:    Galvanized (Zinc Plated) or Spraying
Reinforced:    Nylon Fabric Reinforced
Transport Package:     Carton Packaging
Specification:    DN20-DN80
Trademark:    OEM
Origin:    China
HS Code:    4009120000
Production Capacity:    1000000PCS
 
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Anti Vibration Brass Threaded Rubber Flexible Joint
Anti Vibration Brass Threaded Rubber Flexible Joint

Model NO.    NHFLEX-DTYPE
Product Name:    Thread Connection Rubber Joint with Union Ends
Union Standard:   BSPT, NPT
Union Material:    Carbon Steel, Stainless Steel, Bronze, Cast Iron
Union Surface:    Galvanized (Zinc Plated) or Spraying
Reinforced:    Nylon Fabric Reinforced
Transport Package:     Carton Packaging
Specification:    DN20-DN80
Trademark:    OEM
Origin:    China
HS Code:    4009120000
Production Capacity:    1000000PCS
 
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High Pressure Threaded Rubber Joint Pipe Connector for HVAC Systems
High Pressure Threaded Rubber Joint Pipe Connector for HVAC Systems

Model NO.    NHFLEX-DTYPE
Product Name:    Thread Connection Rubber Joint with Union Ends
Union Standard:   BSPT, NPT
Union Material:    Carbon Steel, Stainless Steel, Bronze, Cast Iron
Union Surface:    Galvanized (Zinc Plated) or Spraying
Reinforced:    Nylon Fabric Reinforced
Transport Package:     Carton Packaging
Specification:    DN20-DN80
Trademark:    OEM
Origin:    China
HS Code:    4009120000
Production Capacity:    1000000PCS
 
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EPDM Thread Connection Rubber Joint for Noise Reduction
EPDM Thread Connection Rubber Joint for Noise Reduction

EPDM Thread Connection Rubber Joint for superior noise reduction and vibration absorption in piping systems, featuring corrosion resistance and high flexibility for seamless thermal expansion handling.

  • Material: High-quality EPDM rubber with nylon fabric reinforcement for durability
  • Standards: Compliant with BSPT/NPT thread standards, available in DN20-DN80 sizes
  • Performance: Withstands 2.0MPa pressure, -20°C to 100°C temperature range
  • Applications: Ideal for water, oil, and gas pipelines with galvanized/carbon steel unions
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Threaded Flexible Rubber Joint for Pressure Absorption
Threaded Rubber Pipe Joint Expansion Connector for Noise Reduction

NHFLEX-D Type Threaded Rubber Pipe Joint Expansion Connector for Noise Reduction

This high-performance threaded rubber pipe joint compensator excels in vibration absorption, noise reduction, and stress relief for industrial piping systems. Its reinforced nylon fabric construction ensures durability while handling thermal expansion, pipe movement, and corrosive media.

  • Corrosion-resistant rubber compounds (NR/EPDM/NBR/FKM) for water, oils, and gases
  • Withstands 2.0MPa pressure, -20°C to 100°C temperature range
  • BSPT/NPT threaded ends in galvanized carbon steel/stainless steel/bronze
  • Effective noise/vibration damping with ±2-4mm movement capability (DN20-DN80)
  • Easy installation with low maintenance requirements

Standard sizes DN20-DN80 available with OEM customization options.

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NR NBR EPDM Rubber Bellows Expansion Joint with Union Ends
NR NBR EPDM Rubber Bellows Expansion Joint with Union Ends

NR NBR EPDM Rubber Bellows Expansion Joint with Union Ends provides superior flexibility and vibration absorption for piping systems. Designed with durable EPDM rubber and reinforced nylon fabric, it ensures reliable performance under pressure and temperature variations.

  • Material: Outer/Inner EPDM rubber with nylon fabric reinforcement
  • Thread standard: ISO 7-1 compliant
  • Working pressure: PN10/16 (10/16 bar)
  • Temperature range: 0°C to 80°C with 500mmHg vacuum capacity
  • Union ends made of malleable iron for secure connections
  • Custom material specifications available upon request
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Rubber Flexible Joint Featured


  • Corrosion Resistant Universal Flanged Rubber Single Ball Expansion Joint
  • Fire Protection System Flexible Single Sphere Rubber Expansion Joint Flange
  • Flange Type Bellows Flexible EPDM Single Sphere Rubber Expansion Joint
  • Flexible Single Ball Bellow Compensator EPDM or NBR Rubber Expansion Joint
  • High Temperature Resistant Pipe Connector Flange Single Ball Rubber Expansion Joint
  • Plumbing Materials Single Sphere EPDM Flexible Flange Rubber Bellow Compensator Expansion Joint
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Rubber Flexible Joint Application Videos

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About Ningjin NINGHAO

about
Ningjin NINGHAO Machinery Co., Ltd., founded in 2010, is a leading rubber expansion joint manufacturer based in Ningjin County, Shandong Province. Our facility spans 8,000 square meters, and we employ over 80 staff, including 21 skilled technicians.
Equipped with advanced production and inspection equipment, we offer a wide range of high-quality rubber expansion joints and rubber metal pipe connectors. With years of exporting experience, we've established global business relationships and earned high praise from our customers.
Our annual production capacity exceeds 100,000 units, and our dedicated QC team ensures strict quality control. We look forward to cooperating with you and providing top-notch solutions.

Rubber Flexible Joint Services

Rubber Flexible Joint Services

7*24 Hours Service

NINGHAO is always here to support your bearing business. Whenever you need help or consultation, our professional team will be on standby to provide timely and effective solutions.
Rubber Flexible Joint Services

Cost Savings

We understand the importance of cost control for businesses. Therefore, NINGHAO strives to offer more competitive prices, helping you reduce costs while boosting your business. Choosing NINGHAO means choosing a cost-effective partner.​​​​​​​
Rubber Flexible Joint Services

24 Hours Rapid Delivery

When you encounter urgent orders, NINGHAO can respond quickly. We promise to process your orders within 24 hours, ensuring that you can obtain the required products in a timely manner to meet the pressing needs of production or projects.

Additional Products Associated With Piping Systems

Spherical Type Flexible EDPM Rubber Pipe Expansion Joint
Spherical Type Flexible EDPM Rubber Pipe Expansion Joint
NINGHAO Machinery is the leading spherical type flexible EDPM rubber pipe expansion joint manufacturer and supplier in China. As a top producer, we provide comprehensive solutions for pipeline systems with various specifications. We take pride in delivering world-class performance, durability, and reliability through our expansion joints. Experience superior pressure absorption capacity - request your customized quotation today!
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NBR NR EPDM VITON Flexible Rubber Piping Expansion Joint
NBR NR EPDM VITON Flexible Rubber Piping Expansion Joint
NINGHAO Machinery is China's leading manufacturer and supplier of NBR NR EPDM VITON Flexible Rubber Piping Expansion Joint. As an industry leader, we offer a wide selection of expansion joints. We are proud to deliver world-class quality and innovation. Try our expansion joints and contact us today!
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High Quality Single Ball Rubber Expansion Joint with Flange
High Quality Single Ball Rubber Expansion Joint with Flange
NINGHAO Machinery leads as China's top High Quality Single Ball Rubber Expansion Joint with Flange manufacturer.
We offer a range of High Quality Single Ball Rubber Expansion Joints.
We proudly supply our High Quality Single Ball Rubber Expansion Joint with Flange.
Try our High Quality Single Ball Rubber Expansion Joint with Flange and contact us now!
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Flanged Flexible Rubber Pipeworking Expansion Joints
Flanged Flexible Rubber Pipeworking Expansion Joints
NINGHAO Machinery is the leading Flanged Flexible Rubber Pipeworking Expansion Joints manufacturer and supplier. As an industry frontrunner, we offer a wide range of expansion joints for applications. We are proud to provide our world-class expansion joints. Try our superior expansion joints, contact us today!
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4 Inch DN100 Single Ball General Rubber Expansion Joint
4 Inch DN100 Single Ball General Rubber Expansion Joint
NINGHAO Machinery is the leading rubber expansion joint supplier in China. As a trusted manufacturer, we offer expansion joints featuring our 4 Inch DN100 Single Ball General Rubber Expansion Joint. We are proud to supply world-class expansion joints. Try our expansion joints, contact us now!
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Heavy Duty Thread Connection Rubber Joint with Union Ends for Pipelines
Heavy Duty Thread Connection Rubber Joint with Union Ends for Pipelines
NINGHAO Machinery is China's leading manufacturer and supplier of Heavy Duty Thread Connection Rubber Joint with Union Ends for Pipelines. As a manufacturer, we offer a wide selection of rubber joints. We proudly deliver world-class rubber joints. Try our rubber joints; contact us now!
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Customizable Double Ball Neoprene Rubber Expansion Joint for Vibration Absorption
Customizable Double Ball Neoprene Rubber Expansion Joint for Vibration Absorption
NINGHAO Machinery is a manufacturer of Customizable Double Ball Neoprene Rubber Expansion Joint for Vibration Absorption in China. As a manufacturer, we have a wide selection of these expansion joints. We are proud to offer our world-class expansion joints. Try them, inquire now!
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5" 6" Od Flanged Edpm Rubber Water Pipe Compensator Expansion Joint
NINGHAO Machinery is the leading manufacturer of pipe expansion joints in China. As a trusted supplier, we offer a wide range of durable and efficient expansion joints. We take pride in delivering high-quality solutions for piping systems. Try our 5" 6" OD Flanged EPDM Rubber Water Pipe Compensator Expansion Joint, inquire now!
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Single Ball DN65 2-1/2 Inch EPDM Rubber Compensator with Steel Flange Ends
2-1/2 In. DN65 EPDM Rubber Flexible Expansion Joint for Water Pipeline
Techical Features:
1. Connection Ends: Flange Drilling to BS EN 1092-2:1997
2. Working Pressure: PN10/16
3. Temperature Range: 0°C- 80°C
4.Vacuum Capacity: 700MM/HG
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Answers To Your Rubber Flexible Joint Inquiries


  • What is a Rubber Flexible Joint?
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    A Rubber Flexible Joint, also known as a rubber expansion joint, is a device used to connect two pipes or fittings while allowing for some degree of movement or flexibility. It is made of high-quality rubber and reinforced with metal flanges or sleeves, providing excellent durability and resistance to pressure, temperature changes, and chemicals.
  • What are the advantages of using a Rubber Flexible Joint?
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    Rubber Flexible Joints offer several advantages, including:
    Absorption of vibrations and shocks, reducing noise and stress on the piping system.
    Compensation for thermal expansion and contraction, preventing pipe damage due to temperature changes.
    Easy installation and maintenance, saving time and labor costs.
    Resistance to corrosion and chemicals, ensuring long-lasting performance in harsh environments.
  • Can Rubber Flexible Joints be used in high-pressure applications?
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    Yes, Rubber Flexible Joints can be designed and manufactured to withstand high pressures. However, it is important to select the right type and size of joint based on the specific application requirements, including the operating pressure, temperature, and media being conveyed.
  • How do I choose the right Rubber Flexible Joint for my application?
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    Choosing the right Rubber Flexible Joint depends on several factors, such as the pipe size, operating pressure, temperature range, and the type of media being conveyed. It is recommended to consult with a professional manufacturer or supplier who can provide expert advice and customized solutions based on your specific needs.
  • What is the lifespan of a Rubber Flexible Joint?
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    The lifespan of a Rubber Flexible Joint can vary depending on the application conditions, such as the operating pressure, temperature, and media. However, with proper installation, maintenance, and selection of high-quality materials, Rubber Flexible Joints can last for many years, providing reliable and efficient performance.
  • Do Rubber Flexible Joints require any special maintenance?
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    Rubber Flexible Joints generally require minimal maintenance. However, it is important to inspect them regularly for signs of wear, damage, or leakage. Any issues should be addressed promptly to prevent further damage and ensure the safe and efficient operation of the piping system. Additionally, following the manufacturer's recommendations for installation, operation, and maintenance can help extend the lifespan of the joint.

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CONTACT US
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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