NHFLEX-A TYPE NBR Flanged DN250 Single Sphere Rubber Expansion Joint for Water System

Characteristics:

Standard Specification:

Component Parts:

Why Choose Our Product?

Typical Water System Applications

Name: NBR Flanged DN250 Single Sphere Rubber Expansion Joint for Water System
Brand: Ninghao
Rating: 5.0 (77 reviews)

The DN250 NBR Single Sphere Rubber Expansion Joint is a flexible pipe connector designed to improve the safety, stability, and longevity of water pipeline systems. Its single-sphere structure allows controlled flexibility while maintaining compact dimensions, making it ideal for installations with limited space.

Plumbing Systems Rubber Expansion Joint NBR Pipe Coupling

Reliable Performance for Water Systems
NBR rubber offers good resistance to water, wear, and aging, ensuring consistent performance in potable and industrial water pipelines.
Single Sphere Flexible Design
The single sphere structure effectively compensates axial, lateral, and angular movements while maintaining compact installation length.
Shock Absorption and Noise Reduction
Reduces the transmission of vibrations and noise in pipeline systems, providing a quieter and more stable working environment.
Easy Installation and Maintenance
Rubber expansion joints have a simple structure, making them easy to install and maintain. They also have low maintenance costs.

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

Our DN250 single sphere rubber expansion joints are produced under strict quality control to ensure durability, reliable sealing, and long-term operational safety. They provide a cost-effective solution for water systems by reducing vibration, preventing pipeline stress, and extending the service life of connected equipment.

Max.Working Pressure

Operating Temperature

-20ºC-100ºC

Vacuum KPa (mmHg)

Applicable Media

Sea Water, Drinking Water, etc.

Flange Standard

DIN, JIS, GOST, ANSI, etc.

Municipal water supply pipelines
Building water distribution systems
Pump inlet and outlet connections
Water treatment and filtration plants
Cooling and circulation water systems

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.
Plumbing Systems Rubber Expansion Joint NBR Pipe Coupling

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!