-38%
Siemens VVG44.25-10 two-way regulation valve
€ 138,74€ 224,87+ PVM
SKU
VVG44.25-10
Model
VVG44.25-10
Delivery
1 - 2 working days.Brand
siemens
Weight
0.91kg.
Have questions?
TL;DR: Higher-flow two-way valve DN 25, Kvs 10 m³/h — for medium substations user branches.
- Tipas: Dvieigis (2-eigis) reguliavimo vožtuvas
- DN: 25
- Kvs: 10 m³/h
- PN: 16 bar
Where VVG44.25-10 is used
Siemens VVG44.25-10 — two-way regulation valve is typically used in B2B HVAC heating, DHW (domestic hot water) or cooling systems. See When-to-choose section below for specific use cases.
Technical specifications
| Parameter | Value |
|---|---|
| Tipas | Dvieigis (2-eigis) reguliavimo vožtuvas |
| DN | 25 |
| Kvs | 10 m³/h |
| PN | 16 bar |
| Jungimas | G 1 1/4" išorinis sriegis |
| Δp maks. | 4 bar (SAS31), 6 bar (SAX31) |
| T diapazonas | 2 … 150 °C |
| Terpės | Vanduo, glikolio tirpalas iki 50 % |
| Korpusas | Bronza (dezinkifikacijai atspari) |
| Sėdynė | Nerūdijantis plienas |
| Nuotėkio klasė | IV klasė (0,05 % Kvs) |
| Suderinamos pavaros | Siemens SAX31 (800 N) — rekomenduojama |
Capacity — quick calculation
Formula: Q = Kvs × √Δp. Precise sizing depends on flow rate and system parameters — use the manufacturer's calculation tool or contact our free technical consultation.
Designer note: Before final VVG44.25-10 selection we recommend verifying against the manufacturer catalogue — some technical values (e.g., max Δp, Kvs, Q ranges) depend on the specific configuration.
When to choose VVG44.25-10
- Daugiabučių pilnas šildymo stovas (~90–140 kW pagal Δp)
- Kai reikia didesnės nei DN 20 pralaidumo su tuo pačiu PN 16
- Modernizacija iš pasenusių Danfoss VRG2/VRB2 DN 25 vožtuvų
B2B delivery and logistics via Amegata.lt
- 24-hour delivery across Lithuania (from our warehouse in Vilnius)
- Competitive B2B pricing — often below market average
- 30-day payment terms for companies (per contract)
- Free technical consultation for VVG44.25-10 selection
Frequently asked questions
Kokią pavarą naudoti VVG44.25-10?
Rekomenduojama Siemens SAX31.03/.00 (800 N) — pakankama jėga uždaryti prie 6 bar Δp.
Ar SAS31 pakaks?
Ne visais atvejais. SAS31 (300 N) ribotas iki 4 bar Δp — didesniems slėgio kritimams rinkitės SAX31.
Ar tinka centralizuotam vandeniui su chloridais?
Taip. Dezinkifikacijai atspari bronza + SS sėdynė tinka Lietuvos CŠT vandens sąlygoms.
Kuo skiriasi nuo VVG549.25?
VVG44.25 — PN 16, standartiniams pastatams. VVG549.25 — PN 25, aukštybiniams ir komerciniams punktams.
