Gas supply

APPLICATIONS

Polyethylene gas pipe lines

ADVANTAGES

Flexibility, resistant of hydraulic impacts, ability for higher working lengths
Corrosion and abrasive resistance
Absence of precipitated layer to cause to pressure losses
Prevent noise or vibration spreading due to material elasticity and sound absorption ability
Durability – over 50 years depending on exploitation conditions (temperature, pressure and kind of transported fluid)
Resistant to freezing
Appropriate for earthquake areas
Resistant to vagabond currents

Polythilene gas pipes

The colors of pipes for gas supply made of polyethylene type 100 or type 100RC are black with orange stripe or completely orange. Co-extrusion pipes made of polyethylene type 100 or type 100 RC are with orange inner and outer layers, middle layer is black.

Диаметър	Дебелина	Тегло	Дебелина	Тегло
mm	mm	kg/m	mm	kg/m
	S 5/SDR 11 PN 10 bar C=2		S 8/SDR 17 PN 6 bar C=2
20	2	0.116	*	*
25	2.3	0.170	*	*
32	3	0.278	2.0	0.193
40	3.7	0.429	2.4	0.293
50	4.6	0.666	3.0	0.451
63^#	5.8	1.054	3.8	0.720
75^#	6.8	1.472	4.5	1.016
90^#	8.2	2.132	5.4	1.460
110^#	10	3.163	6.6	2.173
125^*#	11.4	4.103	7.4	2.772
140^*#	12.7	5.114	8.3	3.480
160^*#	14.6	6.713	9.5	4.543
180^*#	16.4	8.485	10.7	5.746
200^*#	18.2	10.464	11.9	7.091
225^*#	20.5	13.244	13.4	8.994
250^*#	22.7	16.289	14.8	11.023
280^*#	25.4	20.421	16.6	13.847
315^*#	28.6	25.850	18.7	17.536
355^*#	32.2	32.813	21.1	22.318
400^*#	36.3	41.661	23.7	28.207
450^*#	40.9	52.800	26.7	35.700
500^*#	45.4	65.100	29.7	44.200
560^*#	50.8	81.500	33.2	55.300
630^*#	57.2	103.300	37.4	70.100

С – коефициент на сигурност

* - тръбите се произвеждат само на пръти с дължина 6 или 12м

# – произвеждат се и коекструдирани многослойни тръби

Technical characteristics of polyethylene

Chemical resistance of polyethylene

MARKING

Each pipe has a marking containing: company name, standard, trade mark, material, standard dimension ratio, outer diameter in mm, wall thickness in mm, nominal pressure in bar, designation, date of production, length.

Example: НБИ-Габрово; БДС EN 1555-2; КДН; PE 100 RC; SDR17; 110x10 Co-Ex; PN 10; Gas; 25.06.2015; 48

TRANSPORT

Pipes could be transported by any kind of vehicle with no difficulties, providing that following conditions are observed:

when loaded straight pipes are laid on along their whole length, while coils are put on their base keeping the requirement for storing in height;
pipes should be kept away from sharp edges;
pipes should not be dragged along the ground or floor of vehicle;
pipes should not be thrown during handling.

STORING

Pipes are kept in storage premises or in the open air areas arranged in rows up to 1.5m high, so that to evade deforming of pipes under their own weight. They also should be kept away from direct sunlight, hot surfaces, open fire or heating devices.

CERTIFICATES AND PERMISSIONS

ISO 9001: 2008/18.12.2014

BULGARKONTROLA S.A. Declaration of conformity: 14-НУРВСПСРБ-2386; 14-НУРВСПСРБ-2387; 14-НУРВСПСРБ-2391