Danfoss XB 12L-2 40/40 brazed plate heat exchanger, PN 25
- Code: 004H7614
- Series: Danfoss XB-2
- Model: XB 12L-2 40/40
- Number of plates: 40
Where XB 12L-2 40/40 is used
This 40-plate brazed heat exchanger is designed for user branches in substations of multi-family and commercial buildings. Primary side from district heating network, secondary side for space heating or DHW production. Brazed gasket-free construction requires no periodic maintenance.
Technical specifications
| Parameter | Value |
|---|---|
| Code | 004H7614 |
| Series | Danfoss XB-2 |
| Model | XB 12L-2 40/40 |
| Number of plates | 40 |
| Nominal pressure (PN) | 25 bar |
| Connection (ISO 228/1) | G 1 1/4" external thread, DN 32 |
| Plate material | Stainless steel AISI 316L (1.4404) |
| Brazing filler | Copper brazing |
| Heat capacity | ~28-80 kW (depends on flow and ΔT) |
| Temperature range | −196 °C … +180 °C |
| Media | District heating water; glycol up to 50%; pH 7-10 |
| Weight | ~12.5 kg |
| Height (without supports) | ~460 mm |
| PED category | PED 2014/68/EU, category II |
| Configuration | 2-pass |
Heat capacity — quick calculation
Formula: P = Q × ΔT × 1.163 (kW, Q m³/h, ΔT °C).
Example: heating mode (90/70 °C → 65/40 °C) at Q = 2.4 m³/h and ΔT ≈ 20 °C → P ≈ 55 kW.
When to choose XB 12L-2 40/40
- Substation user branches with capacity demand 28-80 kW
- DHW primary heat exchanger for multi-family systems
- When PED cat II certification is required for commercial buildings
- Modernisation from outdated gasketed heat exchangers
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 XB 12L-2 40/40 selection
Official Danfoss catalogue: store.danfoss.com/004H7614
Frequently asked questions
How does XB 12L-2 differ from XB 12L-2 CoResist?
Standard version with copper brazing — cheaper, suitable for standard district heating water (pH 7-10). For aggressive water systems — choose CoResist.
Is it suitable for potable water (DHW)?
Yes. Stainless steel plates and copper brazing meet potable water system requirements (WRAS, DVGW, depending on country).
What maintenance is required?
Brazed gasket-free construction requires no periodic disassembly. Only CIP (Clean-in-Place) flushing every 3-5 years is recommended, if fouling signs appear.
Can glycol mixtures be used?
Yes, ethylene glycol or propylene glycol solutions up to 50%, with appropriate inhibitors. For DHW — only potable-grade fluids.
What are the PED requirements?
XB series complies with PED 2014/68/EU, category II (medium risk level) — allowing commercial use in Europe.
