EDER SG 330 diaphragm expansion vessel, 330 l

EDER – premium Austrian expansion and pressure maintenance technology. The manufacturer from Leisach offers equipment for managing volume changes in closed heating and cooling systems. The maintainable diaphragm tanks of the Elko-Flex family provide a practical solution for building services systems.

SG 330 – 330-liter, vertical diaphragm expansion tank. Absorbs the change in water volume resulting from temperature changes. Its gas-filled design operates with a pre-charge set for the system; the required tank size must be selected based on the system's water volume and pressure conditions.

• 330 liters nominal volume: offers tank capacity for larger systems; this is not identical to the actual expandable water volume that can be absorbed.
• 3 bar maximum operating pressure: according to the original data plate and the technical manual of the SG family.
• 1.3 bar indicated pre-charge: to be adjusted during installation to the static height and pressure conditions of the system; the current charge requires verification.
• Replaceable bag diaphragm: the design according to the manufacturer's SG documentation facilitates subsequent diaphragm replacement.
• 90 °C data plate value, 70 °C connection limit: the factory manual specifically limits the continuous temperature at the connection point for the SG series; proper return-side connection of the tank is therefore essential.
• 2015 manufacturing year, 1205413 serial number: identification verified by the original data plate of this specific unit.

Manufacturer document: the EDER Elko-Flex technical manual uploaded, with the data of the SG 330 on printed page 29. This is a product family document; the individual unit's identifiers are verified by the original data plate.

New price – current SG 330 model. For the current EDER SPIROTECH Elko-Flex SG 330, 0050204 tank, the Austrian webshop SOLARVIC quotes a gross price of 1 001.32 EUR and a net price of 834.43 EUR. Source verification: 2026.10.05. This is the offer for the current model, not the new price of the entire system of the 2015 unit. It applies to a single tank; maintenance fittings, optional supplementary tanks, installation, and delivery to Hungary are to be agreed upon separately. New SG 330 and price source.

Brands featured in ProfiKazán's selection

AGRO Forst & Energietechnik, Alfa Laval, Austria Email, Binder, Biral, Buderus, Clima, Delphis-therm, EDER, Elco, Fröling, GEA, Gilles, Grundfos, Grünbeck, Guntamatic, HAPPEL / Ziehl-Abegg, Hargassner, HDG, Heizbösch, Herz, Hoval, Kampmann, Kränzle, KSB, KWB, LOOS, Lopper, Lowara, Mawera, Nolting, ORION / AL-KO, Picopello, Pneumatex, Pollhuber, Prüller, Reflex, Remeha, Ruwac, Schwank, Sieger, Siemens, Spanex, Varem, Viessmann, Wilo, Windhager, Wolf, YORK.

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