Hinge Type Expansion Bellow

Price 57000.0 INR/ Unit

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MOQ : 1 Unit

Hinge Type Expansion Bellow Specification

Surface Treatment
Polished, Painted, Anti-corrosive

Max. Temperature
up to 600C

Head Code
Round

Flange
ANSI, DIN, BS Standard Flanges

Media
Air, Gas, Steam, Water

Material
Stainless Steel, Carbon Steel, Alloy Steel

Technique
Seamless, Welded

Type
Hinge Type Expansion Bellow

Connecting Type
Flanged, Welded

Shape
Cylindrical

Working Pressure
up to 40 bar

Coating
Epoxy or Customized

Pressure Test
Hydrostatic/Pneumatic

Bellow Diameter
50 mm to 1500 mm

Movement Capability
Axial, Lateral, Angular

Length
Customized as per requirement

Application
Absorbs lateral and angular movements in piping systems

Design Standard
EJMA, ASME

Number of Ply
Single or Multi-ply

Leakage Class
Class V or as specified

Spring Rate
Customized per movement

End Connection
Flange, Butt Weld

About Hinge Type Expansion Bellow

A HINGE expansion bellows is a specialized component designed to absorb angular movement in a single plane within a piping system, while restricting other types of movement. It consists of a flexible bellows element and two hinges connected by a common pin, which allows it to bend in only one direction. These bellows are often used in pairs or sets of three and can handle external loads like piping weight, which reduces the need for additional anchors.

Versatile Movement Absorption

Hinge Type Expansion Bellows offer exceptional flexibility by absorbing lateral, axial, and angular movements, ensuring reliable performance even in dynamic piping systems. Their hinge mechanism precisely restricts axial displacement while permitting safe lateral and angular deflection, minimizing stress and enhancing pipe longevity.

Customizable Design & Durable Materials

Tailored to meet specific application needs, these expansion bellows are available in diameters from 50 mm to 1500 mm, single or multi-ply construction, and various surface treatments. Manufactured from high-grade stainless, carbon, or alloy steel, the bellows withstand high temperatures and corrosive environments, contributing to robust, long-term system integrity.

Comprehensive Testing & Compliance

Each bellow is rigorously tested via hydrostatic and pneumatic methods to ensure leakage prevention. The products strictly adhere to EJMA and ASME international design standards, with flanged or welded connections compatible with ANSI, DIN, or BS standards, delivering peace of mind in safety and regulatory compliance.

FAQ's of Hinge Type Expansion Bellow:

Q: How does a hinge type expansion bellow function within piping systems?

A: The hinge type expansion bellow utilizes articulated hinge components that permit lateral and angular movement while restricting axial displacement. This design reduces mechanical stress on pipework, accommodating thermal expansion and misalignment, making it ideal for complex industrial piping networks.

Q: What applications are suitable for hinge type expansion bellows?

A: These bellows are best suited for absorbing lateral and angular movements in piping systems carrying air, gas, steam, or water. They are commonly employed in power plants, refineries, and chemical industries, handling high temperatures and pressures up to 600C and 40 bar.

Q: When should I select single-ply versus multi-ply construction for bellows?

A: Single-ply bellows are ideal for applications with moderate movement and pressure, while multi-ply designs offer increased flexibility and fatigue resistance, suitable for higher pressures or where frequent movement occurs. Selection depends on your specific system requirements and operating conditions.

Q: Where can hinge type expansion bellows be installed?

A: These bellows can be installed in any section of piping systems requiring movement absorption, particularly in places with constrained geometry or exposed to thermal stresses. Their cylindrical, round head code shape enables easy integration with flanged or welded connections.

Q: What is the process for customizing a hinge type expansion bellow?

A: Customization involves specifying parameters such as diameter (50 mm to 1500 mm), length, number of plies, material, end connection type, surface treatment, and required movement capabilities. Manufacturers design and produce bellows to match these criteria, ensuring optimal performance for your application.

Q: How do the bellows benefit piping system longevity?

A: By absorbing movement and reducing stress concentrations, hinge type expansion bellows minimize the risk of pipe fatigue, cracks, and joint failure. Their anti-corrosive coatings and robust materials further enhance durability, decreasing the need for frequent system maintenance.

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