material expansion bellows

Shanghai Doan Machinery Technology Co.,Ltd is a road repair machine manufacturing factory ,which is specialized in manufacturing Asphalt Distributor,Crack Router,Crack Sealing Machine,Chip Spreader,road roller,Asphalt Mixing Plant ,etc.
we own dozens of advanced production lines and advanced production technology and high quality professional management talents to ensure excellent product quality.

Our products include:

Terms:

1) Delivery term: FOB,CNF CIF

2) Delivery lead time: 30 days after receive T/T deposit.

3) Payment term: .30% as deposit by T/T, balance will be paid by T/T against the copy of B/L.

4) Quality assurance: Test Certificate is supplied with shipment, third Party Inspection is acceptable.

Our Advantage:

1.Operating radius is small, can work in a small area,suitable for groove backfill;
2.With HONDA gasoline engine or famous water-cooled diesel engine,superior performance,easy to operate;
3.With international famous brand PH hydrauulic drive unit,infinitely variable speed;
4.Hydraulic steering,reversing conveniently; Vibratory Road Roller
5.Internationally renowned NSK Bearings,MITSUBOSHI (Samsung) belt, to ensure the work performance of machine;

Inquiry Us Inquiry For More Information!Send Email To: [email protected]

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    Bellows can be formed from most ductile materials that can be welded by the automatic T.I.G. welding process and result in a homogenous weld structure. It is imperative that companies specifying and purchasing bellows give thorough consideration to the selection of the bellows material.

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    Bellows is a basic part of expansion joint and it is made by forming metal cylinder into annular corrugations. The bellows can be single or multi-ply. The bellows properties and their flexibility depend on shape of convolutions, thickness and number of plies.

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    Metal bellows expansion joints can be designed for pressures that exceed 1000psi and temperatures to 1800F. The flexible convolutions of the bellows provide movement capability in all directions, while providing an airtight seal. Bellows are available with flanged ends, weld ends, or threaded connections.

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    Metal bellows expansion joints offer a cost effective alternative to other expansion devices while optimizing the productive life of a piping system. They are designed to last as long as the system.

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    Axial expansion joints are suitable for internal and external overpressure. If pressure is applied to the outside of the metal bellows of axial expansion joints, the expansion joints permit very large axial movements in case of internal pressure in a pipeline.

    The origins ·

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    Bellows Material Data. Senior Flexonics engineers can form bellows from most ductile materials that can be welded by the automatic TIG butt welding process that results in …

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  • Metal Bellows Expansion Joints / Compensators.

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    Stainless steel bellows offer the best price to performance ratio of any material. Stainless steel bellows maintain their high strength capability and custom design with varying thicknesses. BellowsTech has superior welding practices to ensure that the bellows assembly performs to our customers’ requirements.

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  • DEKOMTE - Fabric Expansion Joints

    DEKOMTE is known for its high quality products in the sector of fabric expansion joints.Not only because of the quality of the materials but principally because of the extensive experience and technical nature that DEKOMTE successfully applied in highly diverse cases.DEKOMTE considers the expansion joint as integral part of the duct compensation system.

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  • Expansion Joint Design Basics - Flexonics

    Torsion Twisting about the longitudinal axis of the expansion joint can reduce bellows life or cause expansion joint failure and should be avoided. Expansion joints should not be located at any point in a piping system that would impose torque to the expansion joint …

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  • Hunter Expansion Joints

    Ductwork or Ducting Bellows, Fabric Bellows or Metal Bellows Expansion Joints Pressures Typically less than 5 psig and High Temperatures to 1500 F+ 1’0” Sizes to 16’0”+ Sizes, Round or Rectangular (Any Length & Anything Shippable)

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    Hose Master is a premier manufacturer of metal bellows and metal expansion joints. We offer both pre-engineered expansion joints and custom-designed expansion joints by leveraging our technical expertise and innovation. Using the winning formula that made us the industry leader for engineered metal hose and assemblies, Hose Master provides the same superior engineering, precisely controlled ...

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    Bellows made from Hastelloy can be designed as a mechanical seal, expansion joint, volume compensator, or actuator. With the flexibility to customize, BellowsTech can manufacture and weld custom fittings, flanges, and weld rings to its bellows to …

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