Heavy Industrial Used Union Thread Connection Rubber Bellows Pipe Compensation Connector

Customization: Available
Connection: Union
Kind: Corrugated Compensator

Product Description

📘 Basic Information
Model NO.
NHFLEX-D TYPE
Head Code
Round
Material
Nr, EPDM, NBR, FKM
Customized
Customized
Certification
CE, ISO9001
Warranty
12 Months
Application
Drinking Water Pipe, Building, Marine Industry
Product Name
Thread Connection Rubber Joint with Union Ends
Union Standard
BSPT, NPT
Union Material
Carbon Steel, Stainless Steel, Bronze, Cast Iron
Reinforced
Nylon Fabric Reinforced
Specification
DN20-DN80
HS Code
4009120000
🛠️ Product Description

NHFLEX-D TYPE Union Thread Connection Flexible Rubber Expansion Joints Pipe Connector Rubber Compensator

A Union Thread Rubber Expansion Joint is a type of flexible connector used in piping systems to absorb thermal expansion, vibration, and mechanical shock. It is designed to allow for movement in the pipeline without causing stress or damage to the system. Union Thread Rubber Expansion Joints feature a threaded connection, which allows for quick and easy installation and maintenance, saving downtime and labor costs in various applications, such as HVAC and heavy industrial applications.

Union Thread Connection Rubber Expansion Joint
Key Characteristics:
  • Corrosion Resistance: Made from high-quality rubber materials (EPDM, NBR, NR, FKM) suitable for water, oil, and gases.
  • Elastic Deformation: Absorbs stresses caused by temperature changes and vibrations.
  • Noise Reduction: Effectively reduces vibration transmission for a quieter environment.
  • Easy Installation: Simple structure for rapid deployment and low maintenance.
📊 Technical Parameters
Max. Working Pressure2.0Mpa
Operating Temperature-20ºC to 100ºC
Vacuum KPa (mmHg)101.3 (760)
Applicable MediaSea Water, Drinking Water, etc.
Union StandardBSPT, NPT
Component Parts:
ItemPartMaterial
1Body Outer LayerNR, EPDM, NBR, FKM
2Body Inner LayerNR, EPDM, NBR, FKM
3Reinforced FabricNylon
4UnionZinc Plated/Sprayed Carbon Steel, Cast Iron, Bronze, Stainless Steel
NHFLEX-D TYPE Size Chart:
SIZE (DN) Compression (mm) Extension (mm) Lateral (mm) Angular (deg)
202262245
252262245
322262245
402262245
502262245
652462445
802462445

* Pressure rating is based on 30ºC operating temperature. Reduced at higher temperatures. Test pressure is 1.5x working pressure.

🚀 Application & Main Products

Our rubber joints are essential for compensating thermal expansion/contraction, absorbing vibrations, and preventing leaks in complex pipeline systems. They ensure safety in water treatment, HVAC, marine, and power generation sectors.

Main Products Overview Joint Application Display
🏢 Professional Capabilities

With years of export experience to Spain, Italy, France, India, and beyond, we specialize in high-quality single ball, double sphere, and thread-connection rubber expansion joints. Our facility utilizes advanced production equipment to meet ANSI, DIN, and JIS standards.

📦 Packaging & Certifications
Shipping Packaging Certifications
Frequently Asked Questions
What is a Union Thread Rubber Expansion Joint?
It is a flexible pipe connector designed to absorb vibration, noise, and thermal expansion in piping systems, featuring threaded union ends for easy installation.
What materials are available for the rubber body?
We provide several high-grade materials including NR (Natural Rubber), EPDM, NBR (Nitrile), and FKM, depending on the chemical and temperature requirements of your media.
What is the maximum working pressure for these joints?
The standard maximum working pressure for the NHFLEX-D TYPE is 2.0Mpa, with a burst pressure rating typically four times the working pressure.
In which industries are these expansion joints commonly used?
They are widely used in HVAC systems, drinking water pipelines, building construction, marine industries, and chemical processing plants.
Are the union connections customizable?
Yes, while BSPT and NPT are standard, other thread standards and materials like Stainless Steel, Bronze, or Cast Iron are available upon request.
How do these joints handle pipe movement?
They are engineered to handle axial compression, extension, lateral deflection, and angular movement, ensuring the pipeline remains stress-free during operation.

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