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Watts · EN 12828
Technical Datasheet & 2D Drawing (S2012263S405700)
Dimensional & hydraulic connection schematic
Watts expansion_vessel – Watts Plėtimosi serija inžinerinis komponentas, skirtas kategorijai „Plėtimosi indai ir slėgio palaikymas". Techniniai parametrai: paju
Shipped from central warehouse (delivery 2–4 bus. days)
Material / Spec: Lakštinis plienas S235JR (3–4 mm), išbandytas 1,5×PN hidrauliniu slėgiu
Akumuliacinėms talpoms – juodas plienas; ŠV boileriams – titano emalis + 850 °C degimas.
EN 12828 sauga: tarp boilerio / akumuliacinės talpos ir apsauginio vožtuvo (3 bar šildymui / 6 bar geriamam vandeniui) bei Statico plėtimosi indo draudžiama montuoti uždaromąją armatūrą.
All [01–06] sub-assemblies, adapters, and gaskets stocked at Eigulių St. 21, Kaunas warehouse (10+ yr service support).
Vytautas engineering compatibility note (S2012263S405700)
Verified mating components for Watts (S2012263S405700) matched by connection standard (DN / thread / M30×1.5 / RA Click) and hydraulic compatibility.
Yes, this Watts unit (SKU S2012263S405700, category: Expansion vessels & pressurisation) is manufactured to European EN 12828 hydronic standards. Verify the connection thread or nominal size (e.g. DN15 1/2", DN20 3/4", M30×1.5 or Danfoss RA Click) – our engineering advisor Vytautas lists directly compatible mating components on this page.
Genuine Watts components use corrosion-resistant alloys (DZR brass, bronze or stainless steel) and calibrated flow paths, preventing valve sticking, water-hammer noise and premature seal leaks over 10+ heating seasons.
When installing Watts expansion_vessel (S2012263S405700, retail price 78,61 €), check whether you need matching union tailpieces, Eurocone adapters, a mating thermostatic head or actuator. See the compatible parts section above.
Always observe the flow-direction arrow on the housing, depressurise the loop before fitting, and never apply hemp or tape onto flat union gaskets or O-ring cones.
Statico-SD 80.3 wall-mounted disc expansion vessel with butyl bladder 80 L/3bar glycol up to 50%. Po-1,5bar, R3/4″ – 7101006
Statico-SD 35.3 wall-mounted disc expansion vessel with butyl bladder 35 L/3bar glycol up to 50%. Po-1bar, R3/4″ – 7101004
Skirtas uždaroms šildymo ir šaldymo sistemoms (EN 12828). Montuojamas grįžtamoje linijoje per IMI Pneumatex DLV aptarnavimo čiaupą.
Suderinamumą pasitikslinkite su mūsų inžinieriumi (+370 611 19158) arba pagal įrenginio techninį pasą
Source: Manufacturer technical catalog (Danfoss / IMI Hydronic / HERZ / Haier / Gorenje 2025–2026) and LST EN 215 / EN 12828 / EN 303-5 standard
Verification note: Solid-fuel boiler door aperture and flange dimensions vary by production year and kW rating – before ordering a door conversion kit or pellet burner, verify exact dimensions against the boiler passport or with a „Gilės inžinerija“ engineer (+370 611 19158).
Confirm that S2012263S405700 connection matches the supply/return pipework and flow direction arrow.
Depressurise the heating circuit, fit the union tailpiece and tighten to factory torque.
Adjust the flow scale (Kvs / l/h) or controller setting according to room or boiler loop load.
Refill the loop, vent trapped air and verify leak-free operation under operating temperature.
Engineer pro tip: When installing Watts (S2012263S405700), never wind hemp onto flat gasket seats or Eurocone O-ring cones – seal only tapered pipe threads.
Compresso Connect C 10.1-3.75 F Statinio slėgio palaikymo sistema su oro kompresoriais, Pmax. 3,75 bar, reguliavimo tikslumas ± 0.1 bar – 8101411
