GF+ Aquasystem PP-R Marine Pipe SDR7.4
GF+ Aquasystem PP-R Marine Pipe SDR7.4 — A PP-R pressure pipe from the Aquasystem family in the SDR7.4 wall series. It is used in drinking water, hot water and heating lines.
Applications
- Drinking water and domestic hot water lines
- Heating installations
- Applications where the project specification calls for the Marine series
Key features
- SDR7.4 wall series
- Smooth inner surface, does not corrode
- Socket fusion welding with Aquasystem fittings
Technical specifications
| Property | Value |
|---|---|
| Series | GF+ Aquasystem (Georg Fischer Piping Systems) |
| Raw material | PP-R (polypropylene random copolymer, type 3) |
| 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 |
| Length / sales unit | 4 m lengths; sold by the meter in multiples of 4 m |
Dimensions
| Size | Product code |
|---|---|
| 20 mm | 4002002001121 |
| 25 mm | 4002002501121 |
| 32 mm | 4002003201121 |
| 40 mm | 4002004001121 |
| 50 mm | 4002005001121 |
| 63 mm | 4002006301121 |
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 |
| Ø40 | 18 | 12 | 6 | 4 |
| Ø50 | 20 | 18 | 6 | 4 |
| Ø63 | 24 | 24 | 8 | 6 |
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 pipe sold?
Pipes are produced in 4 m lengths; they are sold by the meter in multiples of 4 m.
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.