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Saunier Duval

FranceBoiler Spare Parts

Saunier Duval is a European manufacturer of heating systems and components, with a history that extends back to the early 20th century. The brand is primarily associated with residential and light commercial thermal systems, including wall-hung boilers, condensing boilers, and integrated heating appliances. Over the decades, Saunier Duval has developed a substantial installed base across Europe and other regions, which has created a sustained demand for replacement parts and service components. The product catalog available through 3G Electric focuses on these spare parts and control components, all engineered to OEM specifications and traceable to original equipment documentation. This ensures that maintenance teams and plant engineers can source replacements with confidence in fit and function, minimizing downtime in heating-system operations.

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About Saunier Duval

Saunier Duval is a European manufacturer of heating systems and components, with a history that extends back to the early 20th century. The brand is primarily associated with residential and light commercial thermal systems, including wall-hung boilers, condensing boilers, and integrated heating appliances. Over the decades, Saunier Duval has developed a substantial installed base across Europe and other regions, which has created a sustained demand for replacement parts and service components. The product catalog available through 3G Electric focuses on these spare parts and control components, all engineered to OEM specifications and traceable to original equipment documentation. This ensures that maintenance teams and plant engineers can source replacements with confidence in fit and function, minimizing downtime in heating-system operations.

The range of Saunier Duval components supplied by 3G Electric includes diaphragms, membrane kits, micro-switch covers, safety thermostats, safety valves, magnetic fittings, and boiler seals. These parts are designed to meet the operational demands of European boiler standards, which specify pressure ratings, temperature tolerances, and electrical characteristics typical of the region's heating equipment. For example, the safety thermostat is rated to 72°C, and the safety valve is rated to 3 bar, reflecting the standard operating parameters of Saunier Duval boilers. The membrane kits are available in diameters of 55 mm and 63 mm, accommodating different model configurations. Such specifications are critical for procurement specialists who need to verify compatibility with existing installations.

3G Electric supports the Saunier Duval line by maintaining a stock of these components in its Woodlands warehouse, enabling same-day dispatch for urgent repair requirements. This logistical capability is particularly valuable for plant engineers and service technicians managing heating-system downtime in facilities across Southeast Asia and beyond. The catalog emphasizes interchangeability and part-number consistency, with each SKU linked to a specific Saunier Duval part number, such as 53286 for the diaphragm kit or 051160 for the magnetic fitting. This approach simplifies the sourcing process, allowing procurement teams to cross-reference parts against original equipment lists. Technical documentation and cross-reference data are available upon request, supporting specification verification and system diagnostics. By providing access to genuine OEM components, 3G Electric helps extend the service life of Saunier Duval heating systems, ensuring reliable performance in commercial and industrial settings.

Common Applications

  • Residential boiler maintenance — Saunier Duval diaphragm kit 53286 for pressure regulation in wall-hung boilers
  • Light commercial heating systems — Saunier Duval safety valve 3 bar S1006700 for overpressure protection
  • Preventive servicing — Saunier Duval membrane kit D.55mm 54450 for expansion vessel replacement
  • Thermostat replacement — Saunier Duval safety thermostat 72°C isofast S57211 for overheat protection
  • System flushing and cleaning — Saunier Duval magnetic fitting Thelia23 051160 for debris capture
  • Routine seal replacement — Saunier Duval bag of 50 boiler seals Themac 054510 for gasket renewal
Origin: Manufactured in France

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Frequently asked questions

Common questions about Saunier Duval from 3G Electric.

What types of Saunier Duval spare parts does 3G Electric stock?

3G Electric stocks a range of Saunier Duval boiler spare parts, including diaphragms, membrane kits, micro-switch covers, safety thermostats, safety valves, magnetic fittings, and boiler seals. These components are engineered to OEM specifications and are traceable to original Saunier Duval part numbers, such as 53286 for the diaphragm kit and S57211 for the safety thermostat. The inventory covers common maintenance and repair needs for wall-hung and condensing boilers, with parts available for same-day dispatch from the Woodlands warehouse.

Are Saunier Duval membrane kits available in different sizes?

Yes, Saunier Duval membrane kits are available in multiple diameters to fit different boiler models. 3G Electric carries the membrane kit D.55mm (part number 54450) and the membrane kit D.63mm (part number 54570). These kits are used in the expansion vessel or pressure-regulation systems of boilers, and selecting the correct diameter is essential for proper sealing and system pressure maintenance. Always verify the required size against your boiler's documentation before ordering.

What is the pressure rating of the Saunier Duval safety valve?

The Saunier Duval safety valve supplied by 3G Electric is rated to 3 bar, as indicated by part number S1006700. This valve is designed to relieve excess pressure in the heating system, protecting the boiler and connected components from overpressure conditions. The 3-bar rating is standard for many residential and light commercial boiler systems, but it is important to confirm that this matches your system's design pressure before installation.

Can I order Saunier Duval boiler seals in bulk?

Yes, 3G Electric offers Saunier Duval boiler seals in a bag of 50, as listed under part number 054510 for Themac models. This bulk packaging is suitable for maintenance teams that perform regular servicing on multiple units, ensuring a ready supply of seals for routine replacements. The seals are manufactured to OEM specifications, ensuring a proper fit and reliable sealing performance in boiler applications.

How does 3G Electric ensure the authenticity of Saunier Duval parts?

3G Electric sources Saunier Duval parts that are traceable to original equipment documentation, with each SKU linked to a specific manufacturer part number. This traceability ensures that the components meet OEM specifications for materials, dimensions, and performance. While 3G Electric does not manufacture these parts, the catalog is designed to provide procurement teams with confidence in part-number consistency and interchangeability, reducing the risk of compatibility issues during maintenance.

What is the function of the Saunier Duval magnetic fitting for Thelia23?

The Saunier Duval magnetic fitting, part number 051160, is designed for use in Thelia23 boiler models. This fitting incorporates a magnetic filter that captures ferrous particles and sludge from the heating water, preventing them from circulating through the system and causing damage to pumps, valves, and the heat exchanger. Regular maintenance of this component helps maintain system efficiency and extends the lifespan of the boiler.