Silmet S.p.A.

SILMET PVC, a copper tube pre-insulated with PVC, produced with cutting-edge machinery, complies with all the international reference standards, is manufactured according to D.P.R. 1095/68 and D.M. n. 174 of 06.04.2004 of Italian Department of Health - ref. European Council Directive n. 98/83/EC as far as the transport of drinking water is concerned, and is suitable for building plants for transporting gas (UNI 7129).

The characteristics of our coating in PVC make the tube resistant to abrasions and corrosion and the particular internal star-shaped structure allows the correct expansion of the copper tube without jeopardising the condition of the coating.

The PVC coating is odourless, non-toxic and is made without the use of CFC. It is suitable to be used in plants with operating temperatures ranging from -80°C to +100°C.

The PVC copper tube is supplied in 50-meter coils (25 meters with Ø 22 mm) marked at intervals also indicating the relative meters.

The core of the SILMET PVC is the ESENCOR copper tube providing excellent protection against corrosion, the result of scientific studies and tests that guarantee a considerably lower level of residual carbon than is required by the manufacturing standards.

The main characteristics of the SILMET PVC sheath are excellent plasticity, mechanical resistance to abrasions and corrosion, all ensuring that the tube lasts for a long time.

The pre-insulated copper PVC SILMET tube is mainly used in under-floor heating plants, water distribution systems and in the production of gas and air lines.



USAGE TEMPERATURES: -80 °C +100 °C
RESISTANCE TO FIRE: self-extinguishing
WRAPPING coils individually wrapped with transparent film to give further protection

CHARACTERISTICS OF THE ESENCOR COPPER TUBE

Alloy						Cu-DHP CW024A (Cu = 99.90% min. – P = 0.015 ÷ 0.040%)
Physical state						Annealed
Unit tensile strength						220 MPa/mm²
Percentage elongation						40%
Internal cleanliness						C max 0.20 mg/dm²
Dimensions and tolerances ¹						in compliance with standard EN 1057
Internal surface roughness						RA 1/10 micron
Linear thermal expansion coefficient						0.00168 mm/m °C
Thermal conductivity at 20 °C						364 W/m k
¹ Products with marking, dimensional tolerances and various lengths can be prepared on specific Customer request.


TABLE OF DIMENSIONS OF THE SILMET PVC COPPER TUBE

dimensions without insulation	diameter with insulation		thickness of insulating sheath		bursting		operating		coil		water content
dimensions without insulation	diameter with insulation		thickness of insulating sheath		pressure		pressure		length		per meter
mm	mm		mm		MPa		MPa		m		l/m
6 X 1	10		2		74,80		18,70		50		0,0126
8 X 1	12		2		56,10		14,03		50		0,0283
10 X 1	14		2		44,88		11,22		50		0,0503
12 X 1	16		2		37,40		9,35		50		0,0785
14 X 1	18		2		32,06		8,01		50		0,1131
15 X 1	19		2		29,92		7,48		50		0,1327
16 X 1	20		2		28,05		7,01		50		0,1539
18 X 1	22		2		24,93		6,23		50		0,2011
22 X 1	26		2		20,40		5,10		25		0,3142

PALLETISATION OF SILMET PVC COATED COILS

measurement		coil		coils per		meters		app. gross weight		dimensions of
Ø x thickness		length		pallet		per pallet		of pallet		pack
mm		m		n.		m		kg		cm
10 X 1		50		30		1.500		425		h 220 X Ø 80
12 X 1		50		30		1.500		512		h 220 X Ø 80
14 X 1		50		27		1.350		545		h 220 X Ø 80
15 X 1		50		26		1.300		585		h 220 X Ø 80
16 X 1		50		25		1.250		600		h 220 X Ø 80
18 X 1		50		23		1.150		614		h 220 X Ø 90
22 X 1		25		26		650		460		h 220 X Ø 90

The packs cannot be stacked.
A maximum of 2 packs with a large diameter (h 220 x Ø 90 cm) are loaded onto the pallet side-by side together with a third smaller pallet.
The others can be loaded side-by-side in threes.