Are you looking for the best expansion joints factories in China? With so many options available, it can be overwhelming to choose the right one. In this article, we’ll compare the top expansion joints manufacturers in China, highlighting their strengths, products, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

Expansion Joints, China Expansion Joint Manufacturer

Expansion Joint, Rubber Lining: ZHW | Expansion Joint …

Custom Designed Single Expansion Joints for a Pipeline in …

Product Details: U.S. Bellows custom designed single expansion joints for a pipeline in China. The units are 41 3/8″ in length and vary in diameter from 56.3″ to 76.75″. The bellows are fabricated from Incoloy 800, and the weld ends are made from 304H stainless steel. They are designed for an operating pressure of 15 psig at 1231°F with 2.624″ axial compression and 0.25″ lateral deflection. The bellows and weld ends were 100% radiographic tested, 100% dye-penetrant tested, and hydro-tested at 23 psig prior to shipment.

Pros:
– High temperature and pressure tolerance, designed for 1231°F and 15 psig.
– Comprehensive testing including radiographic, dye-penetrant, and hydro-testing e…
– Customizable sizes ranging from 56.3″ to 76.75″ in diameter to fit specific pipe…

Cons:
– Highly specialized materials (Incoloy 800 and 304H stainless steel) may increase…
– Complex testing procedures could extend delivery times.

China Customized Rubber Expansion Joint Suppliers …

Product Details: Rubber Expansion Joints are flexible connectors designed to absorb movement, vibration, and noise in piping systems. They feature a threaded connection for easy installation and maintenance. These expansion joints are made of durable rubber materials such as NR, NBR, and EPDM, providing excellent resistance to various fluids and temperatures. The applicable temperature range is -15~115℃, and for special conditions, it can be -30~+250℃. They are suitable for media including water, sea water, hot water, air, compressed air, oil, acid, and alkali. The joints come in various nominal diameters from 20mm to 80mm with specific dimensions for axial displacement, horizontal displacement,

and deflexion angle.

Pros:
– Easy Installation: Threaded connections make installation quick and straightforw…
– Flexible Movement Absorption: These expansion joints effectively absorb movement…
– Durable Construction: Made of high-quality rubber materials, they offer excellen…
– Reduced Stress: By absorbing movement and vibrations, these expansion joints hel…
– Versatile Applications: Suitable for a wide range of industries and applications…

Cons:
– Requires Regular Maintenance: Regular inspection for signs of wear, leaks, or da…
– Limited Customization in Standard Models: While customizable options are availab…

Low Price Expansion Joints With Stainless Steel Bellows …

Wholesale China OEM Metal Expansion Joints – EH-900/ …

Rubber Expansion Joint Single Sphere – Nortech

U.S. Bellows Fabricates Expansion Joints for Power Plant …

Product Details: U.S. Bellows, Inc. supplied four 72-inch expansion joints for the piping system of a power plant in Zhuhai, China. These expansion joints are designed to carry the exhaust from the plant’s boiler feed pump turbines. The configuration includes a unique combination of a universal joint in one plane and a hinged joint in another plane. This setup is used instead of the more common pressure-balanced expansion joints.

Pros:
– Custom-designed to meet specific application requirements
– Capable of handling high-temperature and pressure conditions
– Unique combination of universal and hinged joints to accommodate complex piping…

Cons:
– Complex design may require specialized installation and maintenance
– Higher cost due to custom fabrication and specialized materials

Products – rubber expansion joints manufacturers

Product Details: Rubber expansion joints are designed to absorb various directional piping movements, including compression, extension, angular, torsional, and lateral movements. They are composed of an inner rubber layer, a multi-layer scraping nylon curtain fabric, and an external rubber layer. The joints are available with steel flanges or union connections and can be made from materials such as IIR, CR, EPDM, NR, and NBR. Nominal diameters range from DN 32 to DN 3000, with standard flange lengths varying from 90mm to 700mm. The pressure capacity can be up to 25 bar, and vacuum stability is available on request[1][2][3].

Pros:
– Highly resistant to fatigue and corrosion
– Significant sound-proofing capacity
– Excellent against vibration and flutter in rigid piping systems
– Good flexibility, easy installation, and maintenance
– Eliminate the need for coupling gaskets
– Absorb thermal movement, offset, and misalignment in piping systems
– Prevent metal-to-metal contact, stopping the electrolytic process

Cons:
– Limited axial space compared to some other types of expansion joints
– Material limitations based on the specific application (e.g., chemical resistanc…
– May require periodic inspection and maintenance to ensure optimal performance
– Can be more expensive than some other types of piping connections

Single Sphere Rubber Expansion Joint, China Threaded …

Product Details: Rubber expansion joints are flexible units made from natural or synthetic elastomers, often reinforced with materials like steel, nylon, or aramid. They are available in various configurations such as single and double sphere, spool or arch type, and can be made from different materials like EPDM, Neoprene, Viton, and more. These joints can be used in a wide range of applications including piping systems to absorb movements, vibrations, or noise, and in concrete construction to allow for expansion and contraction.

Pros:
– Absorb axial, lateral, and angular movements
– Temperature resistant
– Chemical resistant
– Corrosion resistant
– Reduce water shock
– Safe, reliable, and durable
– Maintenance-free
– Optimum solution for narrow spaces
– Sound deadening effects
– Environmentally friendly when made from recycled materials

Cons:
– May require specific storage conditions to prevent degradation
– Can be limited in their movement capabilities compared to other types of expansi…
– May not be suitable for all types of media or high-velocity applications without…
– Installation may require loosening nuts and washers to allow full extension or c…

Comparison Table

Frequently Asked Questions (FAQs)

What types of expansion joints do Chinese factories typically produce?

Chinese factories produce a wide range of expansion joints, including metal expansion joints, rubber expansion joints, fabric expansion joints, and custom-designed expansion joints. These products cater to various applications such as pipeline systems, HVAC, plumbing, and industrial processes. You can find expansion joints made from different materials like stainless steel, carbon steel, and specialized alloys, each suited for different environmental and operational conditions.

What certifications and standards do Chinese expansion joint factories adhere to?

Many Chinese expansion joint factories adhere to international standards and certifications. Common certifications include ISO 9001 for quality management, ISO 14001 for environmental management, and ASME standards for specific industrial applications. These certifications ensure that the products meet high-quality and safety standards, giving you confidence in the reliability and performance of the expansion joints.

Can Chinese expansion joint factories provide customized solutions?

Yes, many Chinese expansion joint factories offer customized solutions to meet your specific needs. They work closely with clients to design and manufacture expansion joints that fit particular applications, whether it’s for unique material requirements, special sizes, or specific performance criteria. This customization ensures that you get the right product for your project.

How long does it typically take for Chinese expansion joint factories to deliver their products?

The delivery time for expansion joints from Chinese factories can vary but is generally quite efficient. Typically, you can expect delivery within 20 working days, depending on the quantity and complexity of the order. Some factories may offer quicker turnaround times for standard products or larger orders.

Are Chinese expansion joint factories open to international trade and export?

Yes, many Chinese expansion joint factories are experienced in international trade and export. They have a global reach, exporting their products to countries around the world, including the USA, Europe, Australia, and more. They are well-equipped to handle international orders and provide support throughout the process, ensuring smooth and reliable transactions.