GF+ Aquasystem PP-R Reducing Elbow
GF+ Aquasystem PP-R Reducing Elbow — A 90° elbow that changes both direction and diameter: one end is a larger socket, the other a smaller socket. Using one piece instead of an elbow plus a reducer saves one welding point.
Applications
- Turning from a main line to a smaller fixture connection
- Transition from a Ø25 line to a Ø20 outlet in in-apartment distribution
- Compact size reduction in tight spaces
Key features
- Change of direction and diameter in one piece
- Fewer welds, shorter installation time
- PN25 pressure rating
Technical specifications
| Property | Value |
|---|---|
| Series | GF+ Aquasystem (Georg Fischer Piping Systems) |
| GF product description | AQUASYSTEM Reducing Elbow PP-R |
| Body material | PP-R (polypropylene random copolymer, type 3) |
| Pressure rating (GF data) | PN25 |
| Jointing | Socket fusion welding — no seals or compression parts |
| Color | White |
| Application | Cold and hot drinking water, heating systems |
| Standards | Pipe: DIN 8077/8078, EN ISO 15874 · Fittings: DIN 16962, EN ISO 15874 |
Dimensions
| Size | Product code | d | d1 | DN | PN | D | D1 | L1 | L2 | LB |
|---|---|---|---|---|---|---|---|---|---|---|
| 20-25 mm | 4300402011021 | 19.2 | 24.2 | 20-25 | 25 | 29 | 35.0 | 15.0 | 16.0 | 42.8 |
| 25-32 mm | 4300402511121 | 24.2 | 31.1 | 25-32 | 25 | 35 | 43.5 | 16.0 | 18.0 | 51.0 |
d: pipe outside diameter (mm) · d1: second outlet pipe diameter (mm) · DN: nominal size · PN: nominal pressure (bar, 20 °C) · D: body outside diameter (mm) · D1: second outlet body diameter (mm) · L1: socket depth (mm) · L2: second socket depth (mm) · LB: overall length (mm). Dimensions from the GF Piping Systems data sheet; the technical drawing in the product images shows where each dimension applies.
Socket fusion welding times
| Pipe diameter | Welding depth (mm) | Heating (s) | Joining time (s) | Cooling (min) |
|---|---|---|---|---|
| Ø20 | 14 | 5 | 4 | 2 |
| Ø25 | 15 | 7 | 4 | 2 |
| Ø32 | 16.5 | 8 | 6 | 4 |
Values per DVS 2207-11 at +20 °C ambient and 260 °C heating tool temperature. Below +5 °C, extend the heating time by about 50%. Heating time starts when pipe and fitting are fully seated on the heating dies; during the joining time the parts may be aligned axially without twisting.
Installation tips
- Cut the pipe square with a pipe cutter and mark the welding depth on the pipe.
- Push pipe and fitting onto the heating dies at the same time without twisting; when the heating time is over, join them quickly and axially.
- Do not twist the parts after the joining time; do not pressurize the line before the cooling time has passed.
- Pressure-test the installation before closing walls or screed.
Frequently asked questions
How is the size read?
For example, 20-25 mm: one end welds to a Ø20 pipe, the other end to a Ø25 mm pipe.
Used together in the Aquasystem system
PP-R Standard Pipe SDR6 · PP-R Fiberglass Reinforced (Faser) Pipe · PP-R Welding Kit · PP-R Welding Dies · PP-R Pipe Cutter · PP-R Elbow 90°
About the brand
Aquasystem is the PP-R piping system of Swiss-based Georg Fischer (GF) Piping Systems: pipes, fittings, valves and welding tools made to work together and joined with the same welding method. Novus Energy supplies all GF+ Aquasystem components for projects worldwide, shipped from Istanbul.