Details

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Stainless Steel Expansion Bellow / Joint is used in piping systems where vibration, movement, thermal expansion or equipment connection forces must be considered. The bellow assembly must be selected from the actual movement, pressure, temperature, media, connection, anchoring and guiding conditions.

Expansion Bellow Product Overview

Expansion bellows and vibration absorbers may be installed near pumps, pressure tanks and other vibrating equipment to help manage transmitted vibration and movement. Correct system design is essential; an expansion joint should not be treated as a substitute for suitable anchors, guides, supports or piping analysis.

Documented Construction and Connection Options

Bellows and inner sleeve	Stainless steel
Connection parts	Stainless steel or carbon steel
Connection standards	DIN, ANSI or JIS
Structure reference	According to EJMA standards
Bellows construction	Double ply

Different material arrangements may be considered for specific requirements, subject to confirmation of the complete design.

Size and Pressure Information

• Available size range stated in the existing product information: DN50 (2 inches) to DN1200 (48 inches)
• Standard vibration-absorber pressure class stated: PN16
• Special designs may be reviewed for higher-pressure requirements

Pressure class alone does not define a suitable expansion joint. Temperature, movement, cycle requirements, material, flange rating and system loads must also be confirmed.

Typical Application Areas

• HVAC and plumbing systems
• Air compressors and pumps
• Hot-air pipelines
• Chemical and industrial plants
• Marine applications
• Palm oil mills
• Turbine-industry systems

Every application requires a project-specific review of media, temperature, pressure, movement and installation conditions.

Engineering Information Needed for Selection

• Pipe size, connection standard and flange rating
• Operating and design pressure and temperature
• Conveyed media and corrosion environment
• Required axial, lateral and angular movement
• Expected vibration, cycle frequency and service life requirements
• Overall length and installation space
• Anchor, guide and support arrangement
• Required testing, inspection and documentation

Installation and System Considerations

Expansion joints must be installed in the specified orientation and protected from torsion, misalignment and unintended loads. Piping anchors, guides and supports should be designed for the forces generated by pressure and movement. Confirm the final arrangement with the responsible piping or mechanical engineer.

Frequently Asked Questions

Can an expansion bellow absorb pump vibration?

A correctly selected vibration absorber may help manage transmitted vibration, but suitability depends on the equipment, frequency, movement, pressure, temperature and piping-support arrangement.

Is PN16 suitable for every application?

No. PN16 is the stated standard pressure class for this product range, but the actual design must also account for temperature, movement, materials, flanges and system loads.

What information should be provided for a quotation?

Provide the pipe size, connections, pressure, temperature, media, required movement, overall length, system drawing and any testing or documentation requirements.

Request an Expansion Bellow Quote in Malaysia

Contact Advtech Engineering (KL) Sdn Bhd for stainless steel expansion bellow, flexible connection and fabrication requirements in Selangor, Kuala Lumpur and Johor Bahru. Share the system data and drawing for a suitable review.