Vibration Damping Spacer - Series W8 - DN 25; L=70mm; EPDM BRA.W8.500

Product detailed description

Vibration damping spacers are essential in HVAC systems, water distribution, and compressed air installations where mechanical vibrations can propagate through piping. These spacers are commonly used in commercial and industrial buildings, including heating systems, ventilation units, and chilled water loops. They help isolate equipment such as pumps, compressors, and heat exchangers from the rest of the system, reducing noise and wear on connected components. Installers and technicians working in these environments often integrate these spacers during system design or retrofitting to enhance operational efficiency and longevity.

Proper selection and installation of vibration damping spacers are critical to achieving the desired performance. The spacer must be compatible with the system’s operating conditions, including pressure, temperature, and media type. It should also be correctly aligned and secured to prevent misalignment and stress transfer. This ensures that the spacer functions as intended, maintaining system integrity and reducing the risk of mechanical failure.

Technical parameters

Material: - flanges	Galvanised steel
Nominal diameter	DN 25
Nominal pressure	PN 10
Weight	2.293 kg
Code	W8500025
Brand	IVAR

The nominal diameter (DN 25) and pressure rating (PN 10) are key factors in determining the suitability of the spacer for a given application. The flange type and sealing material (EPDM) also influence the spacer’s performance in different environments. These parameters help in matching the component to the system’s hydraulic and mechanical requirements, ensuring reliable operation under specified conditions.

Installation and connection

The spacer is connected using PN 10 flanges, which must be aligned and tightened according to the manufacturer’s torque specifications. The 70 mm length allows for sufficient flexibility while maintaining structural integrity. Installers should verify that the flange surfaces are clean and free from debris to ensure a proper seal. Common installation errors include misalignment, over-tightening, and using incompatible sealing materials, which can lead to leaks or reduced damping effectiveness. The spacer should be installed between two rigid pipe sections to maximise vibration isolation.

Compatibility and accessories

This spacer is compatible with standard PN 10 flanged systems and can be integrated into HVAC, water, and compressed air installations. It is not suitable for steam, gases, or oil-based fluids. When ordering, ensure that the flange dimensions and bolt patterns match the existing system. Additional components such as gaskets, bolts, and alignment tools may be required for a complete installation. No specific related products are recommended for this model.

Technical background for designers

The spacer operates by absorbing mechanical vibrations through the EPDM sealing element, which deforms under dynamic loads to reduce energy transfer. The galvanised steel flanges provide a durable connection, while the EPDM material offers resistance to water and glycol-based media. The spacer’s effectiveness depends on the system’s frequency of vibration and the stiffness of the connected piping. Designers should consider the spacer’s dimensions and material properties when planning for thermal expansion and mechanical stress in the system.

Service and operation

Regular inspection is recommended to check for signs of wear, leakage, or misalignment. The EPDM seal should remain intact and free from cracks or deformation. If the spacer shows signs of degradation, it should be replaced to maintain system performance. No specific service intervals are provided, but maintenance should be performed as part of routine system checks. Cleanliness of the flange surfaces and proper tightening are essential for long-term reliability.

Frequently asked questions

Can this spacer be used in steam systems?
No, it is not suitable for steam or gas applications. The EPDM material and flange design are intended for water and glycol-based media only.

What is the maximum operating temperature?
The spacer is rated for operation between -10°C and +100°C. Exceeding this range may affect the performance of the EPDM seal.

Is this spacer compatible with oil-based fluids?
No, it is not suitable for use with oils or hydrocarbon-based liquids. The EPDM material may degrade when exposed to such media.

Can the flange rating be changed to PN 6?
PN 6 flanges are available upon request, but the standard configuration is PN 10. This must be specified at the time of ordering.