Flamco T-Plus DN15 rapid installation tee for steel pipes, Rp 1/2" branch, PN 25
- Application: DN15 branch on existing steel pipe while the system stays in operation
- Pipe outer Ø: 21.3 mm (1/2")
- Branch connection: Rp 1/2" (female thread, DN15)
- Nominal pressure / T: PN 25 / +120 °C
Where T-Plus DN15 is used
The smallest size in the range, typically used for individual radiator, towel-rail or metering point connection in apartments and single-family houses, where a tap-in is needed on an existing DN15 steel main. Typical scenarios — adding a radiator to an old riser branch, connecting an individual meter or thermometer pocket, forming a drain or air-vent branch.
The tee is fitted with screws — the cutting element pierces the seal and enters the pipe wall, and the system does not need to be drained. Installation takes about 3-5 minutes, whereas the same job by welding or threading would take hours including the drain-down and refill cycle.
Technical specifications
| Parameter | Value |
|---|---|
| Code | 90615 |
| Series | Flamco T-Plus, cast iron version |
| Model | T-Plus DN15 x Rp 1/2" |
| Pipe nominal DN | DN15 (1/2") |
| Pipe outer Ø | 21.3 mm |
| Branch connection | Rp 1/2" (BSP female thread, DN15) |
| Housing material | Cast iron with anti-corrosion coating |
| Seal | EPDM with single-use cutting element |
| Max working pressure | PN 25 (25 bar) |
| Max working T | +120 °C |
| Permissible pipe wall thickness | ≤ 2.0 mm |
| Tightening torque | 10 Nm |
| Pipe standards | DIN EN 10255 (Series M/H), DIN EN 10216, DIN EN 10217 |
| Media | Heating water, chilled water, potable water, solar, compressed air |
| Installation | Clamp-on with system in operation, no welding, no threading |
When to choose T-Plus DN15
- Individual radiator, towel-rail or metering point connection on a DN15 steel riser
- Heating system retrofit or extension without draining (during the heating season)
- When welding is not allowed due to fire risk (wooden structures, old linoleum floors, flammable storage)
- Compatibility: steel pipes per DIN EN 10255 M/H, DIN EN 10216, DIN EN 10217 with wall thickness ≤ 2.0 mm
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 on pipe compatibility
Official Flamco catalogue: flamco.aalberts-hfc.com/T-plus 90615
Frequently asked questions
Is a special tool required for T-Plus installation?
No. The T-Plus is installed with an ordinary spanner or torque wrench — no drilling equipment, no welding gear, no threading machine. The tee already contains a single-use cutting mechanism combined with the clamp seal, which pierces the pipe wall as the bolts are tightened.
What system temperatures does it handle?
Up to +120 °C. This covers classic district heating regimes (typically 90/70 °C), individual gas and solid-fuel boiler loops, and solar system branches. Higher temperatures (steam) — not suitable.
Can it be used in domestic hot water (DHW) systems?
Yes, the cast iron T-Plus version is certified for potable water systems. For copper pipework use the brass T-Plus version — the cast iron variant is specifically for steel pipes.
How to prepare the pipe before installation?
The pipe surface at the clamping point must be clean (no paint, rust scale or insulation). Verify the wall thickness ≤ 2.0 mm. If the pipe is coated with a thick anti-corrosion paint layer, it must be cleaned down to bare metal at the clamp location.
