Product Description

Product Description

 

 

       Double ball rubber joint can be divided into single ball, double ball, different diameter body, curved ball and wind pressure coil. A tubular rubber piece consisting of an inner and outer rubber layer, a cord layer and a traveller is vulcanized and formed and then loosely combined with a metal flange or a parallel joint.
 

Product Parameters

 

Double sphere rubber bellows coupling is generally consist of the inner and the outer rubber layer and fabric reinforced layer (the enhancement layer has a multilayer spreading cord fabric), vulcanization molded in high temperature and high pressure , then assembly together with rubber tube and metal flange or parallel joint sleeve.

 

No.    Name                                           Material

1    Inner and outer rubber             NR,NBR,EPDM etc

2    Frame                                     Nylon cord fabric

3    Pressuring ring                        Steel wire

4    Flange                                    Stainless steel or Carbon steel                                                                    galvanized
 

 

Nominal diameter DN		Length mm	Center diameter of    the bolt	bolt hole diameter	bolt   quantity	Axial displacement		Horizontal displacement (mm)	Deflexion angle
mm	inch					Extension(mm)	Compression(mm)		(a1+a2)°
50	2	165	125	18	4	30	50	45	35°
65	2 ½	175	145	18	4	30	50	45	35°
80	3	175	160	18	8	35	50	45	35°
100	4	225	180	18	8	35	50	40	35°
125	5	230	210	18	8	35	50	40	35°
150	6	325	240	22	8	35	50	40	35°
200	8	325	295	22	8	35	50	40	35°
250	10	325	350	22	12	35	60	35	30°
300	12	325	400	22	12	35	60	35	30°

Technical Conditions
 

	DN200-DN300(8-12)		DN50-DN150(2-6)
	JGD-A(1)                                   JGD-A(2)		JGD-A(3)
workiing pressure   MPa	1(10)	1.6(16)	2.5(25)
burst pressure    MPa	2(20)	3(30)	4.5(45)
vacuum  degree   KPa	40(300)	53.3(400)	86.7(650)
applicable      temperature	-15~115ºC  specially  reachable  -30~250ºC
applicable medium	“Air,water,sea water,vacuum,hot water,oil,acid,alkali,etc.”

Data above is only for reference, if  you want much more information, please contact us.

We have various types of molds and multiple sets rubber vulcanizing equipment, which can meet mass production and customization requirements.
 

Production process

 

 
 

products application

 

 This product is widely used in chemical industry, construction, water supply and drainage, petroleum, heavy and light industry, refrigeration, sanitation, plumbing, fire protection, electric power and other basic engineering.According to different materials can be made of acid resistance, alkali resistance, corrosion resistance, oil resistance, high temperature resistance, radiation resistance, wear resistance, aging resistance and other varieties, to adapt to a variety of media and the environment.We can also do pressure testing.

 

Company Profile

       HangZhou Ruixuan pipeline equipment factory was founded in 1996.It  is an excellent  enterprise  specializing  in manufacturing  and selling pipe fittings.It’s located  in Xicun village ,HangZhou  city,ZheJiang province ,the concentrated  area  of pipeline equipment industry  in China.The  company factory  is located  in Xicun town pipeline equipment industrial park.It covered an area of20000  square  meters.

        At present, the company has the production capacity of pipeline equipment with a maximum diameter of 4000mm, and its main products are: Steel expansion joint, flexible waterproof sleeve, large diameter flange, double flange force transfer expansion joint, large deflection loose sleeve compensation joint, spherical compensation joint, sleeve compensator, bellows compensator, non-metallic compensator, rubber expansion joint, DC medium no thrust sleeve compensator, flexible expansion pipe and other pipeline equipment. The annual production capacity is 30 million sets.

      The flexible telescopic pipe equipment is mainly used in the pipeline crossing different geological structures under different conditions and the application of pipe installation drop, reduce or avoid the impact of geological settlement and crustal activity on the pipeline, so that the construction unit can save more than 50% of the cost when purchasing the equipment. The rubber expansion joint series products of the company, the maximum production diameter of 3600mm, have been applied in millions of units of thermal power projects in China for many times, and have been praised by the users.

        The company passed ISO9001:2008 quality management system certification in 2009 and ISO14000:2004 environmental management system certification in 2009. The company has a strict quality control system, standard production process, standard factory inspection hand section, to ensure that every product meets the national standards and customer requirements.

        Business philosophy: responsible production of products, return the trust of customers; To build a community with a sense of belonging and appreciate employees’ contributions; Make a contribution to the society of enterprises, give back to the good times. HangZhou Ruixuan pipeline equipment factory is willing to work with friends from all walks of life hand in hand, mutual support, create a better future!
 

Certifications

 

 

FAQ

 

Q : Are you trading company or manufacturer?
A: We are manufacturer of rubber expansion joint,bellow, dismantling joint, dresser coupling, flange adapter and flange with more than 13-year experience.

Q: Do you have products catalog?
A: Yes, we have. Please tell me your email or instant messager, we will send our catalog.

Q: Can you provide drawings and technical data?
A: Yes, our professional technical department will design and provide drawings and technical data.

Q: Do you provide samples? Is it free or charged?
A: Yes, we can offer sample free but shipping charges covered by customer.

Q: How long is your delivery time?
A: Depends on QTY, but normally no more than 20 working days.

Q: Can the products be manufactuered by customer’s requirement?
A: Yes, the specifications stated above are the standard ones, we can design and manufacture as requirement. 

Q: Visting factory is allowed or not?
A: Yes, we welcome customers visiting our factory. Our factory is located HangZhou city,ZheJiang province,China mainland

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Are There Specialized Bellows Couplings Designed for High-Speed or High-Torque Applications?

Yes, there are specialized bellows couplings designed to excel in high-speed or high-torque applications. These specialized couplings are engineered to meet the unique demands of such scenarios, providing optimal performance, reliability, and durability. Here’s how bellows couplings are tailored for high-speed and high-torque applications:

• High-Speed Bellows Couplings: For high-speed applications, the primary consideration is reducing rotational inertia to minimize the effects of centrifugal forces. High-speed bellows couplings are crafted using lightweight materials, such as aluminum or titanium, to achieve lower inertia. The low inertia helps to minimize the risk of resonance and vibrations at elevated speeds, ensuring smooth operation. Additionally, these couplings undergo precise balancing to further enhance their suitability for high-speed applications.
• High-Torque Bellows Couplings: High-torque applications demand couplings capable of transmitting substantial amounts of torque without failure. In such cases, bellows couplings are designed with robust materials, such as stainless steel or alloy steel, to handle the increased torque load effectively. The bellows structure is also engineered with thicker walls to improve torsional stiffness and torque transmission capabilities. Furthermore, the coupling’s design may incorporate multiple bellows to distribute the load evenly, preventing stress concentration on a single point.
• Custom Engineering: Some high-speed and high-torque applications may require bespoke solutions. In such instances, manufacturers offer custom engineering services to tailor the bellows coupling’s dimensions, materials, and features to the specific requirements of the application. Customization ensures that the coupling can meet the stringent performance demands and environmental conditions of the particular high-speed or high-torque setup.

It is crucial to select the appropriate bellows coupling that matches the application’s exact specifications and operational parameters. Choosing the right coupling will ensure smooth operation, prevent premature wear, and optimize the efficiency and reliability of the entire system. When working with high-speed or high-torque applications, consulting with experienced coupling manufacturers or engineering experts can help in selecting the best-suited bellows coupling for the intended use.

Are Bellows Couplings Suitable for Use in Corrosive or Harsh Environments?

Bellows couplings can be suitable for use in corrosive or harsh environments, depending on the material they are made from and their design. The choice of material is a crucial factor in determining the coupling’s resistance to corrosion and its ability to withstand harsh conditions.

Common materials used in manufacturing bellows couplings that offer good resistance to corrosion include stainless steel and other high-grade alloys. Stainless steel is known for its excellent corrosion resistance, making it well-suited for applications in harsh or corrosive environments.

In some cases, bellows couplings can be coated or treated with specialized coatings to further enhance their resistance to corrosion. These coatings can provide an additional layer of protection, allowing the coupling to perform effectively even in highly aggressive surroundings.

It’s essential to consider the specific environmental conditions and the type of corrosive agents present when selecting a bellows coupling for use in such environments. Proper material selection and the appropriate protective measures can ensure the longevity and reliability of the coupling under challenging conditions.

Additionally, it is essential to consult with coupling manufacturers or experts to identify the most suitable coupling material and design for the particular corrosive or harsh environment in question. Customized bellows couplings may be available to meet specific requirements, providing further versatility in addressing the challenges posed by corrosive or harsh conditions.

What are the Different Types of Bellows Couplings Available, and Their Respective Applications?

There are several types of bellows couplings available, each designed to suit specific applications and requirements. Some of the most common types include:

• Single Bellows Coupling: This type of bellows coupling consists of a single bellows element and is suitable for applications with moderate misalignment and torsional stiffness requirements. It is commonly used in robotics, automation, and general motion control systems.
• Double Bellows Coupling: The double bellows coupling features two bellows elements with an intermediate shaft in between. This design offers higher torsional stiffness and increased angular misalignment capacity. It is often used in precision positioning equipment and applications requiring higher torque transmission.
• Flexible Beam Coupling with Bellows: This type of coupling combines the flexibility of a beam coupling with the compensating capability of a bellows coupling. It can handle moderate misalignments and provides a good balance between flexibility and torsional stiffness. It finds applications in medical devices, optical systems, and semiconductor equipment.
• Torsionally Rigid Bellows Coupling: As the name suggests, this coupling type offers exceptional torsional stiffness, making it suitable for applications where precise motion control and low torsional backlash are critical. It is commonly used in CNC machines, high-speed spindles, and other high-precision systems.
• Miniature Bellows Coupling: This type is specifically designed for applications with limited space and where low inertia is crucial. It is commonly used in small robotics, miniature positioning stages, and micro-machining systems.
• High-Temperature Bellows Coupling: This specialized coupling can withstand elevated temperatures, making it suitable for applications in harsh environments, such as aerospace, exhaust systems, and certain industrial processes.

The choice of bellows coupling type depends on the specific requirements of the application. Factors such as misalignment compensation, torsional stiffness, torque capacity, space constraints, and environmental conditions play a crucial role in selecting the appropriate coupling type.

When selecting a bellows coupling, it is essential to consider the coupling’s torque ratings, allowable misalignments, and operating conditions to ensure optimal performance and reliability. Consulting with coupling manufacturers or engineering experts can help in making an informed decision based on the specific needs of the mechanical power transmission system.

editor by CX 2024-02-11