Pre-insulated piping system for INDUSTRIAL PURPOSES
FOR ABOVE GROUND INSTALLATION

PRE-INSULATED ELBOW 90°, 45° INDUSTRIAL APPLICATION, ABOVE GROUND INSTALLATION

DN	d	D Range 150-180^оС	D Range 180-210^оС	D Range 210-240^оС	L 90^о	L 45^о
	mm	mm	mm	mm	mm	mm
25	33,7	140	140	-	335	250
32	42,4	160	160	-	355	300
40	48,3	160	160	200	370	300
50	60,3	180	180	200	400	300
65	76,1	200	200	225	440	330
80	88,9	200	225	250	470	330
100	114,3	250	250	280	530	350
125	139,7	250	280	315	590	350
150	168,3	280	315	355	640	400
200	219,1	355	355	400	610	400
250	273,0	400	400	500	640	450
300	323,9	450	450	560	720	450

DN – Nominal diameter

d – Steel pipe outside diameter (mm)

D – HDPE casing pipe outside diameter (mm)

L – Length of the arms of the elbow (mm)

Bending radius: R=1,5 d

Other sizes – on request and upon discussion.

Raw materials

Carrier steel pipe is manufactured acc.:

- EN 10216-2 or another equivalent norm regarding seamless pipes, steel grade P235GH .

- EN 10220 – steel pipes sizes

Pipe ends are bevelled in order to facilitate welding acc. ISO 6761.

Casing pipe

The casing pipe is manufactured from spirally wound galvanized steel sheet with thickness 0.6 mm. The zinc coating is with thickness 140 μm. The finished product conforms to EN 1506.

Polyurethane system

AVKO jsc is using polyurethane system with foaming agent cyclopentane. The resulting PUR foam is characterized with very low heat conductivity coefficient < 0,027 W/mK.

Thermo-insulation shell

The used thermo-insulation shell is mineral wool with the following characteristics:

Използваните топлоизолационни черупки са изработени от минерална вата със следните свойства:

Heat conductivity coefficient – 0,034 W/mK

Work temperature – до 700°С

Density – 120-150 kg/m³

PRE-INSULATED PIPE SYSTEMS FOR DISTRICT HEATING NETWORKS

Raw materials