Rubber Bellow Expansion Joint Good Sealing Apply to Vibration Dumping

• Customization: Available
• Connection: Flange
• Kind: Corrugated Compensator
• Model NO.: NHFLEX-A TYPE
• Head Code: Round
• Material: Nr, EPDM, NBR
• Customized: Customized
• Certification: CE, ISO9001
• Warranty: 12 Months
• Application: Drinking Water Pipe, Building, Marine Industry
• Product Name: Single Ball Rubber Joint
• Flange Standard: DIN, JIS, GOST, ANSI, etc.
• Flange Material: Carbon Steel, Stainless Steel, Cast Steel
• Flange Surface: Galvanized (Zinc Plated) or Spraying
• Reinforced: Nylon Fabric Reinforced
• Transport Package: Carton Packaging
• Specification: DN32-DN600, 95mm-265mm
• Trademark: OEM
• Origin: China
• HS Code: 4009120000
• Production Capacity: 1000000PCS

Product Description

Product Description

NHFLEX-A TYPE Flanged Single Ball Flexible Rubber Expansion Joints/Shock Absorber/Noise Absorber/Vibration Dumper

Rubber joint features:
Small size, light weight, good elasticity, easy installation and maintenance

Rubber joints consist of inner and outer rubber, cord layer and traveler, which are vulcanized and then combined with metal flanges or loose sleeves of parallel joints, are mainly used in pipelines with large vibration and frequent changes of heat and cold, which can absorb the vibration generated by the work of the pump, thus reducing the noise and avoiding the loosening of the screws, and thus are also called shock absorbers or vibration dampers. 

Rubber flexible joint is a kind of pipeline connection parts, can connect two different materials, different straight through or different axis of the pipeline. Rubber flexible joint can relieve the pipeline system due to thermal expansion and contraction, frequent vibration and other reasons caused by pipeline deformation, displacement and other problems, so as to protect the safety operation of the pipeline.

When working, it can reduce the noise transmitted by the structure, with strong shock-absorbing ability. Rubber joints have good comprehensive performance and are widely used in marine industry, chemical industry, construction, plumbing, fire fighting, electric power and other basic projects.

Application:
Water, Sea Water, Fresh Water, Warm Water, Weak Acid Fluid, Soda Fluid, etc. Pipeline
Connected with pumps, valves, firefighting equipment, etc.
Selected High Quality Rubber Material
Resistant to oil, oxidation, ozone and corrosion
Natural synthetic elastic rubber with internal reinforcement
Logo can be customized
No scratches, wear resistant, and smooth appearance

Thickened Flange
Hot Dip Galvanized
DIN PN10, PN16, PN25
ANSI 150LB, 300LB
JIS 10K Standard

Flange Optional
Surface spraying high quality finishing flange
Flange color can be customized
Flange material optional

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				2.5Mpa
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

NHFLEX-A TYPE Rubber Joint Size Chart:

SIZE	LENGTH				Movemont Capablllty
DN	F/F				Comp.	Ext.		Lateral	Angular
(mm)	(mm)				(mm)	(mm)		(mm)	(degree)
32	95/130/152				9	6		9	15
40	95/130/152				10	6		9	15
50	105/130/152				10	7		10	15
65	115/130/152				13	7		11	15
80	130/152				15	8		12	15
100	130/152				19	10		13	15
125	130/152/170				19	12		13	15
150	130/152/180				20	12		14	15
200	130/152/205				25	16		22	15
250	130/203/240				25	16		22	15
300	130/203/260				25	16		22	15
350	203/265				25	16		22	15
400	203/265				25	16		22	15
450	203/265				25	16		22	15
500	203/265				25	16		22	15
600	265				25	16		22	15

* Supply range can be up to DN3000, detailed data can be offered upon request.
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 maxlmum "working pressure". Test pressure is 1.5 times "working pressure", Burst pressure is 4 times "work pressure".

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!

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Certifications