Underground double-skinned tanks

Technical data:

Design norms: EN 12285-2 class A or class B, DIN 6608
Technical documentation approved by Notified body
Material – S235JR according to EN10025-1 or stainless steel
Single or multi-chamber tank
Working pressure: max 0,5 bar
Working temperature: from -20°C to + 50°C

Optional equipment:

Street covers in class C 250 kN nad D 400 kN
Steel sumps
Central filling points – Aluminium and Stainless steel
Galvanized anchoring bands
Leak detection system GOK Afriso, SGB
Monitoring systems OPW and others

Purpose:

Storage of flammable and non-flammable, liquids harmful to the environment with a density up to 1,1 kg/dm3 for EN 12285 class A and to 1,9 kg/dm3 for tanks EN 12285 class B and DIN 6608.

Outer surface:

Abrasive grit-blasted to grade Sa 2,5 according to PN-ISO 8501-1 and external anticorrosion Polyurethane coating puncture tested at 10 kV/14 kV

Outer surface:

Pressure test of both inner tank and interspace according to the norm:

EN 12285-1	class A	0,3 bar/0,4 bar
EN 12285-1	class B	2,0 bar/0,6 bar
DIN 6608	–	2,0 bar/0,6 bar

Underground double-skinned steel tanks meet the norms for storage of flammable and hazardous liquids. For years they have met all the requirements established by European countries regarding environmentally harmful liquid storage. Two solid and at the same time flexible steel jackets, insulated with a Polyurethane layer on the outside, along with interstitial space monitoring, constitute safe and ecological solution for fuel storage. Our industrial series production is constantly supervised by a Technical Inspection Office, which guarantees that each tank manufactured fulfills all technical requirements and high quality.

Underground storage means safety and space saving.

One of the greatest advantage of underground storage is the possibility of using a high capacity tank, up to 120 000 litres.

Standard tank equipment:

Depending on the client’s requirements, a tank is equipped with:

a filling pipe with an overfill prevention valve
suction pipes
drain pipe for pumping out the water from the bottom of the tank
gauge pipe for measuring the level with a dipstick
manual gauge connection
automatic gauge connection (for a measuring probe)
vent connection
spare connection
VRS connection

Basic technical data:

Volume	Diameter	Length	Weight*	Weight of additional chamber		Length of the cylinder	Height dishedends	Manhole	Wall thickness				Handle	Inside ring
Volume	Diameter	Length	Weight*	class A	class B	Length of the cylinder	Height dishedends	Manhole	class A		class B		Handle	Inside ring
V	Dz	Lo	Lp			Lp	h	DN	S1	S2	S1	S2		T 80
[m³]	[mm]	[mm]l	[kg]	[kg]	[kg]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[pcs]	[pcs]
3 5 8 10 13 16	1600 1600 1600 1600 1600 1600	2250 3250 4750 5750 7250 8750	1050 1350 1800 2150 2600 3050	351 351 351 351 351 351	351 351 351 351 351 351	1500 2500 4000 5000 6500 8000	270 270 270 270 270 270	600	5	3	5	3	1 1 2 2 2 2	– – – – – –
10 13 16 20 25 30 35	2000 2000 2000 2000 2000 2000 2000	3900 4900 5900 6900 8900 10400 11900	2150 2600 3050 3450 4350 5050 5700	522 522 522 522 522 522 522	522 522 522 522 522 522 522	3000 4000 5000 6000 8000 9500 11000	330 330 330 330 330 330 330	600	6	3	6	3	2	– – – – 1 1 1
20 25 30 40 50 60 70	2500 2500 2500 2500 2500 2500 2500	5050 6050 7050 9050 11050 13050 15050	3950 4600 5250 6650 7950 9350 10650	730 730 730 730 730 730 730	818 818 818 818 818 818 818	4000 5000 6000 8000 10000 12000 14000	400 400 400 400 400 400 400	600	6	4/5	7	4/5	2	– – – 1 1 2 2
40 50 60 70 80 100 120	2900 2900 2900 2900 2900 2900 3000	7150 8650 10150 11650 13150 16150 17900	6850 8150 9400 10650 12000 14500 16900	1045 1045 1045 1045 1045 1045 1200	1279 1279 1279 1279 1279 1279 1470	6000 7500 9000 10500 12000 15000 17000	450 450 450 450 450 450 450	600	7	4/5	9	4/5	2 2 2 4 4 4 4	– 1 2 2 2 2 3