De Marinis P2C4 45° elbow for ISO 25 PLUS G50 insulated twin-wall flue systems. Designed to create offsets and 45° directional changes along the chimney route. AISI 316L BA stainless-steel inner wall, AISI 304 BA outer wall and 25 mm blown mineral wool insulation. Available in internal diameters from Ø80 to Ø350 mm.
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The De Marinis P2C4 45° elbow is an ISO 25 PLUS G50 component designed to create 45° offsets and directional changes in insulated twin-wall flue systems.
Its 45° angle provides a more pronounced change in direction than 5°, 15° or 30° elbows, making it suitable for routing the chimney around structural obstacles or shifting the flue axis.
The P2C4 is manufactured with an AISI 316L BA stainless-steel inner wall, an AISI 304 BA stainless-steel outer wall and 25 mm blown mineral wool insulation.
It is available in nominal internal diameters Ø80, 100, 130, 150, 180, 200, 250, 300 and 350 mm.
The P2C4 is used where the flue route requires a 45° directional change.
Typical applications include:
Two P2C4 elbows can be combined, optionally with a straight flue section between them, to create a parallel offset.
The resulting displacement depends on flue diameter, elbow geometry and the length of any intermediate straight section.
Design note: actual offset geometry should be checked against the De Marinis technical drawing and the installation requirements for the complete flue system.
The P2C4 belongs to the De Marinis ISO 25 PLUS insulated twin-wall flue system.
The high-temperature designation is:
T600-N1-W-V2-L50040/050/060-G50
The G50 classification corresponds to a 50 mm clearance from combustible materials in the certified De Marinis configuration.
Important: G50 applies only to the certified ISO 25 PLUS configuration installed according to De Marinis instructions.
| De Marinis code | Internal Ø (mm) | External Ø (mm) | A (mm) | B (mm) | C (mm) | D (mm) |
|---|---|---|---|---|---|---|
| P2C480 | 80 | 130 | 92 | 42 | 122 | 30 |
| P2C4100 | 100 | 150 | 96 | 61 | 139 | 43 |
| P2C4130 | 130 | 180 | 102 | 67 | 150 | 48 |
| P2C4150 | 150 | 200 | 106 | 71 | 157 | 51 |
| P2C4180 | 180 | 230 | 113 | 78 | 168 | 55 |
| P2C4200 | 200 | 250 | 117 | 82 | 175 | 58 |
| P2C4250 | 250 | 300 | 127 | 92 | 192 | 65 |
| P2C4300 | 300 | 350 | 157 | 102 | 230 | 72 |
| P2C4350 | 350 | 400 | 168 | 113 | 248 | 80 |
The P2C4 must be installed according to the correct system orientation and the flue layout specified by the design.
Where two elbows are used to create an offset, joint alignment, spacing and support of intermediate sections must be checked carefully.
Connected sections must be adequately supported to prevent excessive mechanical loads from being transferred to the elbow.
Installation must be carried out by qualified personnel in accordance with De Marinis technical documentation, appliance instructions and applicable regulations.
Specific References
Reference: P2C380
Brand: De Marinis
Reference: P2T280
Brand: De Marinis
Reference: P2T380
Brand: De Marinis
Reference: P2TS80
Brand: De Marinis
Reference: P2TC80
Brand: De Marinis
Reference: P2C9ITH80
Brand: De Marinis
Reference: P2T180
Brand: De Marinis
Reference: P2RCI80
Brand: De Marinis
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De Marinis P2C4 45° elbow for ISO 25 PLUS G50 insulated twin-wall flue systems. Designed to create offsets and 45° directional changes along the chimney route. AISI 316L BA stainless-steel inner wall, AISI 304 BA outer wall and 25 mm blown mineral wool insulation. Available in internal diameters from Ø80 to Ø350 mm.
