Italiano
Alfaidro‘s multilayer pipe (UV RESISTANT SDR 7.4) consists of a black UV-stabilised PP-R outer layer and guarantees more than 15 years of resistance to ageing caused by UV radiation. The glass-fibre-reinforced interlayer reduces linear thermal expansion by approximately 75 per cent compared to single-layer pipes, which translates into fewer brackets (-30 per cent) and therefore less installation time and costs. The inner and outer layers are made from PP-R 100, which boasts high heat and pressure resistance, along with excellent chemical resistance.
Due to its increased dimensional stability, ease of installation (no stripping required before socket welding), and outer layer
UV-resistant, Alfaidro’s UV RESISTANT SDR 7.4 multilayer pipe is ideal for installation on the
outside of buildings and is suitable for irrigation, heating, air conditioning, compressed air, glycol transport, on means of transportation, and in civil and industrial installations.
GENERAL CATALOGS AND TECHNICAL DATA SHEETS IN
VARIANT Outside diameter Internal diameter Nominal thickness DN Water content (l/m) Weight (Kg/m) Rod size Pack size
UVTAF200 20 mm 14,4 mm 2,8 mm 15 0,163 0,151 4 mt 120 mt
UVTAF250 25 mm 18 mm 3,5 mm 20 0,254 0,236 4 mt 80 mt
UVTAF320 32 mm 23,2 mm 4,4 mm 25 0,423 0,379 4 mt 48 mt
UVTAF400 40 mm 29 mm 5,5 mm 32 0,660 0,589 4 mt 32 mt
UVTAF500 50 mm 36,2 mm 6,9 mm 40 1,029 0,917 4 mt 24 mt
UVTAF630 63 mm 45,8 mm 8,6 mm 50 1,647 1,442 4 mt 12 mt
UVTAF750 75 mm 54,4 mm 10,3 mm - 2,323 2,052 4 mt 12 mt
UVTAF900 90 mm 65,4 mm 12,3 mm 65 3,358 2,936 4 mt 8 mt
UVTAF110 110 mm 79,8 mm 15,1 mm 80 4,999 4,401 4 mt 8 mt
UVTAF1125 125 mm 90,8 mm 17,1 mm - 6,472 5,662 4 mt 4 mt
UVTAF1160 160 mm 116,2 mm 21,9 mm 100 10,599 9,255 4 mt 4 mt
*| Inner and outer layer in black PPR on variants: UVTAF900, UVTAF110 |*
TEMPERATURES AND OPERATING PRESSURE:
SDR 11
20°C – 15.4 bar
60°C – 7.7 bar
70°C – 5.1 bar
SDR 7.4
20°C to 24.5 bar
60°C – 12.5 bar
70°C – 8.1 bar
WORKING TEMPERATURES:
MIN= -20°C MAX= +95°C
THERMAL CONDUCTIVITY:
0,15 W/mK
COEFFICIENT OF LINEAR EXPANSION:
0.030 mm/mK
REGULATION FOR DRINKING WATER:
DM 174-06/04/2004 (Italy), DM 23/04/2009 e Reg. UE n° 10/2011, KTW RECCOMENDATIONS, DVGW-W 270, BS 6920, FDA CRITERIA IN 21 CFR 177.1520, CSA B214, NSF61, NSF51
REFERENCE STANDARDS:
- Sistema [System]: UNI EN ISO 21003, DIN 16837, UNI EN ISO 15874, ISO 15495, DIN 8077, DIN 8078, ASTM F2389, BS 4991, CSA B137.11
- Prove [Tests]: UNI EN ISO 15874, DIN 16962, ISO 1133, ISO 3126, ISO 1167, ISO 2501, ISO 9854, NSF14