UNPLASTICIZED PVC PIPES

Rigid PVC pipes are recommended for drainage, in technological instalations, for the transport of liquids with non-corrosive action against PVC, fittings, accesories.
The pipes are clasified according to the nominal preassure in three types :

• type 1 (light) : nominal pressure 2,5x10⁵ N/m²
• type 2 (medium) : nominal pressure 6x10⁵ N/m²
• type 3 (heavy) : nominal pressure 10x10⁵ N/m²

Appearance :

The pipes are straight, with circular cross section and ends cut perpendicularly to the axis; the outer and inner surface of the pipes are smooth, free of cracks, porosity or inclusion of impurities; slight waves are admitted.

Colour :

• type 1 (light) : black
• type 2 (medium) : natural
• type 3 (heavy) : grey

Sizes :

Length 4 +/- 0,05 m

Packing of tubes :

The pipes with a diameter up to 40 mm are delivered in bundles tied with a resistant thread, in three places.
The pipes with a diameter higher than 40 mm are delivered in bulk.

The storage and transport of tubes :

The pipes are stored in covered spaces or far away of direct UV action.
The storage temperature is recommended to be from +5⁰C up to +40⁰C. The pipes stored below +5⁰C must be kept min. 24 hours at a temperature of +15⁰C .. +25⁰C, before being used.
The pipes are kept in horizontal gunracks, stowed at a max. height of 0,75 m.
The transport of pipes is done in covered means of transport, taking into account all above recommandations, concerning their arrangement.

Outsider diameter (mm)		Types
		1		2		3
nominal	tolerances	Wall thickness (mm)	Weight (kg/m)	Wall thickness (mm)	Weight (kg/m)	Wall thickness (mm)	Weight (kg/m)
12	+ 0,3					1 + 0,2	0,055
16	+ 0,3					1,2 + 0,2	0,087
20	+ 0,3					1,5 + 0,2	0,135
25	+ 0,3			1,5 + 0,2	0,172	1,9 + 0,2	0,190
32	+ 0,3	1,6 + 0,2	0,239	1,8 + 0,2	0,264	2,5 + 0,2	0,330
40	+ 0,3	1,8 + 0,2	0,265	2 + 0,2	0,366	3 + 0,2	0,530
50	+ 0,3	1,8 + 0,2	0,345	2,4 + 0,2	0,574	3,7 + 0,3	0,760
63	+ 0,3	1,8 + 0,2	0,465	2,5 + 0,2	0,720	4,2 + 0,3	1,170
75	+ 0,3	1,8 + 0,2	0,540	3 + 0,2	1,080	5,5 + 0,3	1,820
90	+ 0,3	1,8 + 0,2	0,700	3,7 + 0,3	1,490	6,0 + 0,3	2,500
110	+ 0,3	2 + 0,2	0,940	4,3 + 0,3	1,780	7,0 + 0,3	3,700

Phisical, mechanical and electrical characteristics

Characteristics	UM	Test method	Values
The change in sizes and appearance after heating at 150^0C - lengh change - appearance	%	STAS 6675/3	max 5 the specimen got from owe must not have swellings, air bubbles, exfoliations
Water absorbtion at boiling	g/m^2	STAS 6675/3	min 60
Vicat softening point	^0C	STAS 6921 met B in air	min 78
Inside pressure resistance (min 1h at 20^0C and pressure of 390x10^5N/m^2)	%	STAS 6675/7	must resist
Impact strenght - method of free fall at   0^0C - method of free fall at 20^0C	% number of broken specimen	STAS 6675/3	max 5 max 10
Dielectric strength	KV/mm	STAS 6675/3	min 15