Metal Bellows

High-quality Stainless Steel Flange Metal Pipe Expansion Joints for industrial piping systems, designed to absorb thermal expansion, vibration, and misalignment. Available in multiple sizes including DN25, DN40, and DN100 for versatile applications.

- ISO 9001 certified with premium stainless steel construction for durability
- Available in standard sizes: DN25, DN40, DN100 (20mm, 40mm, 100mm)
- Secure packaging in steel frame cases with plywood sealing
- Flexible supply capacity up to 35 tons daily with negotiable pricing

YUEDING Flexible Metallic Dismantling Stainless Steel Bellows Expansion Joint offers superior flexibility and durability for industrial piping systems, with customizable colors to match project requirements. ISO 9001 certified, these joints ensure reliable performance under high-pressure conditions while accommodating thermal expansion and vibration absorption.

- High-quality stainless steel construction for corrosion resistance
- Custom color options available for seamless integration
- ISO 9001 certified manufacturing for guaranteed quality
- Flexible MOQ (1 piece) with negotiable pricing and global shipping options

Product Details:
Place of Origin: China
Brand Name: YUEDING
Certification: ISO 9001
Model Number: NIL
Payment & Shipping Terms:
Minimum Order Quantity: 1 piece
Price: Negotiable
Packaging Details: Steel frame case sealed by plywoods with each end capped
Delivery Time: 5~30 working days
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 35 tons per day

These multiply precision bellows are used in pipe valves, testing instruments, and control systems where accuracy, flexibility, and leak-tight performance really matter.
They work as small, flexible pressure seals or motion absorbers, helping to transmit, balance, or isolate pressure changes in delicate systems.
Our factory has been producing metal bellows assemblies for years, focusing on reliable performance and practical cost control rather than just fancy specifications.Whether you need bellows for high-pressure valves, vacuum gauges, or precision test instruments, we can supply the right type and make sure it fits the function.

Product Details:
Place of Origin: China
Brand Name: YUEDING
Certification: ISO 9001
Model Number: NIL
Payment & Shipping Terms:
Minimum Order Quantity: 1 piece
Price: Negotiable
Packaging Details: Steel frame case sealed by plywoods with each end capped
Delivery Time: 5~30 working days
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 35 tons per day

Application Scenarios: Semiconductor fabrication systems, vacuum chambers, analytical instruments, aerospace applications, and cleanroom environments.
Manufacturing Processes: Hydroforming or roll forming of stainless steel tubing, followed by precision welding and helium leak testing.
Features: High vacuum sealing capability, corrosion resistance, and flexible movement without compromise to system pressure integrity.
Customization: Available with ISO-K/CF/NW flanges, pipe or threaded ends, and customizable corrugation pitch, diameter, and length.

For this 2.5" ID stainless steel exhaust bellows, we use a multi-layer 304 stainless steel construction combined with a slip-fit design and an integrated smooth inner liner to maintain stable exhaust flow. With proper tolerance allowance, it is well suited for slip-fit welding with 2.5" turbo exhaust pipes, helping absorb vibration and structural movement. 

Based on our expertise in bellows technology development, we offer a wide range of customizable vacuum bellows. These bellows are primarily used to connect various components in vacuum systems, providing sealing and flexibility while withstanding the pressure of vacuum environments. Our products are widely adopted by customers in semiconductor manufacturing, medical optical equipment, and aerospace industries. We welcome your inquiries and look forward to cooperating with you.

Flanged metal bellows expansion joints connect to pipes or equipment through flanges and are mainly used to accommodate thermal movement caused by temperature changes. Compared with weld-end bellows, flanged connections are easier to install, remove, and maintain, and can be customized according to piping pressure ratings, flange standards, bolt patterns, and equipment interfaces.

Yueding is equipped with product design, CNC machining, and stamping capabilities. Round, square, and custom-shaped flange connections can be produced according to DIN, ASME, JIS, EN, and GB standards or customer drawings. OEM and ODM production is available, and suitable product solutions can be confirmed based on nominal diameter, design pressure, operating temperature, media, required movement, and installation dimensions.

4 Inch Exhaust Bellows use a double-layer stainless steel construction with a smooth inner liner. The 101.6 mm diameter is designed for larger exhaust piping, helping absorb engine vibration and thermal movement between connected exhaust components. Slip-fit ends are standard, while overall length and connection dimensions can be adjusted to match the existing exhaust layout.

Yueding supplies 4 inch exhaust bellows in different lengths and configurations to help you expand common product ranges. Confirmed specifications can be maintained for repeat orders, with related lengths, liner designs, or outer-braid options added to the same series for more efficient sourcing.

Weld-end exhaust bellows are flexible metal components used to connect exhaust pipe sections while reducing piping stress caused by thermal expansion, mechanical vibration, and limited axial movement. A standard assembly consists of a formed stainless steel bellows with straight pipe ends that can be welded directly into engine, generator, marine, and industrial equipment exhaust systems.

Yueding manufactures weld-end exhaust bellows for bulk orders and customized exhaust system projects. Pipe diameter, overall length, end-pipe dimensions, material grade, and single- or multi-ply bellows construction can be customized from drawings, samples, and confirmed operating conditions. Optional configurations include internal liners and external protective sleeves. We support drawing review, rapid sample development, and OEM/ODM production with competitive pricing. Provide the required dimensions, installation position, and operating conditions so that we can confirm a suitable specification.

Application Scenarios: Pressure sensors, pressure transmitters, hydraulic and pneumatic instrumentation, chemical fluid monitoring systems.
Manufacturing Processes: CNC stamping, laser cutting, TIG welding, precision polishing.
Features: Corrosion-resistant, high sensitivity, excellent mechanical stability.
Customization: Material options include 316L, 304, or duplex stainless steel; available with welded edges, surface treatments, or non-standard thickness and diameter.

Product Details:
Place of Origin: China
Brand Name: YUEDING
Certification: ISO 9001
Model Number: NIL
Payment & Shipping Terms:
Minimum Order Quantity: 1 piece
Price: Negotiable
Packaging Details: Steel frame case sealed by plywoods with each end capped
Delivery Time: 5~30 working days
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 35 tons per day

Copper Alloy Precision Bellows offer superior elasticity, sealing, and compensation for precision instruments, sensors, valves, and measuring equipment. Engineered with high-performance copper alloys, these bellows ensure optimal stability, durability, and cost-efficiency for demanding applications.

- Material options: Beryllium copper (high elastic stability), phosphor bronze (excellent elasticity & brazing), brass (cost-effective)
- Custom production support: Size, wall thickness, corrugation form, stroke, end connection, and assembly method
- Flexible services: Pre-quotation material review, sample-based orders, and small-batch production
- Applications: Precision assemblies, industrial sensors, valve compensation, and measurement systems