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HERZ · EN 12828Montavimo ir prijungimo mazgo eiga (1857051):
Gamyklinė komplektacija ir sertifikavimas:
Technical Datasheet & 2D Drawing (1857051)
Dimensional & hydraulic connection schematic
Profesionalus HERZ 1857051 mazgas (HERZ Potinkinė spinta COMPACTFLOOR mazgui, Plotis 900mm, gylis 150-190mm, aukštis…
In stock · delivery 1–3 bus. days
Kolektoriaus kontūrų atvamzdžiai yra G 3/4" Eurokonus (reikia po 2 vnt. Eurokonus jungčių kiekvienam vamzdžio žiedui), o pavarų sriegis – standartinis M30×1,5 (tinka EMO T 1807-00.500 ir Danfoss TWA-K M30×1,5 pavaros).
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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 (+370 693 97098).
Material / Spec: Karštai štampuotas žalvaris CW617N / DZR AMETAL-C, PN16, T_max 120 °C
Montuoti tik pagal srauto rodyklę ant korpuso (5×DN prieš vožtuvą, 2×DN už vožtuvo).
Tiesaus vamzdžio taisyklė: ≥ 5×DN prieš balansinį vožtuvą (P1) ir ≥ 2×DN už vožtuvo (P2) stabiliai Δp matavimo charakteristikai.
All [01–06] sub-assemblies, adapters, and gaskets stocked at Eigulių St. 21, Kaunas warehouse (10+ yr service support).
Confirm that 1857051 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 HERZ (1857051), never wind hemp onto flat gasket seats or Eurocone O-ring cones – seal only tapered pipe threads.
Vytautas engineering compatibility note (1857051)
Verified mating components for HERZ (1857051) matched by connection standard (DN / thread / M30×1.5 / RA Click) and hydraulic compatibility.
Yes, this HERZ unit (SKU 1857051, category: Pipe fittings & valves) 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 HERZ 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 Potinkinė spinta COMPACTFLOOR mazgui, Plotis 900mm, gylis 150-190mm, aukštis 720-805mm (1857051, retail price 203,62 €), 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.
RAX, RTX mounting trim plate, color – stainless steel – 013G3134
Measuring needle nipples, 2 pcs – 003Z0104
Danfoss RLV-S 15 DN15, straight, kvs 2.2 (Uždarymo ventiliai RLV-S be drenažo (lockshield)) – 003L0124
Danfoss RLV-S 20 DN20, angle, kvs 2.2 (Uždarymo ventiliai RLV-S be drenažo (lockshield)) – 003L0125
