2025 10.0MPa EPDM Rubber Double Sphere Threaded Expansion Joint

• Customization: Available
• After-sales Service: Online Video
• Warranty: 1 Year
• Model NO.: NHFLEX-D TYPE
• Standard: GB3289.37,3298.38-82
• Technique: Casting
• Nominal Diameter: DN80
• Type: Threaded Union
• Material: Nr, EPDM, NBR, FKM
• Connection: Union
• 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

Product Description

 

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 Rubber Expansion Joints are suitable for a wide range of applications, including water, wastewater, chemical processing, power generation, and marine applications.

Characteristics:

1. Corrosion Resistance: Rubber expansion joints are made from high-quality rubber materials that exhibit excellent resistance to corrosion. They can be used with various media such as water, oil, and gases.

2. Elastic Deformation: Rubber expansion joints can absorb stresses and vibrations caused by temperature changes, vibrations, or pipe movements in pipeline systems through their elastic deformation. This helps protect the pipeline system from 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				2.0Mpa
Operating Temperature				-20ºC-100ºC
Vacuum KPa (mmHg)				101.3(760)
Applicable Media				Sea Water, Drinking Water, etc.
Union Standard				BSPT, NPT

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	Union	Zinc Plated/Sprayed Carbon Steel, Cast Iron, Bronze, Stainless Steel

NHFLEX-D TYPE Rubber Joint Size Chart:

SIZE	Movement Capabilty
DN	Comp.			Ext,			Lateral			Angular
(mm)	(mm)			(mm)			(mm)			(degree)
20	22			6			22			45
25	22			6			22			45
32	22			6			22			45
40	22			6			22			45
50	22			6			22			45
65	24			6			24			45
80	24			6			24			45

* Pressure/Vacuum rating is based on neutral installed length(F/F)
Pressure rating is based on 30ºC operating temperature.The pressure rating is reduced at higher temperatures.
Weights in the above table are joints with BSPT Malleadble Cast Iron threaded  connections.
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".
Normally, the connections are based on BSPT, NPT or other standards are available upon request.

Exhibition information

Main Products

Application

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.

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!

Packaging & Shipping

Certifications