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Underground Fuel Storage

 

 

Fiberglass fuel storage tanks mean lower Long Life total cost and greater dependability over the life of your storage system.

There's one basic difference between Amiantit Fiberglass underground tanks and tanks made from steel. Fiberglass tanks won't corrode, Fiberglass underground tank will last the life of most facilities without corrosion caused leaks or failures Corrosion caused replacement costs are same eliminated, as are periodic corrosion testing procedures, and the additional expense and concern over environmental problems due to leakage Fiberglass underground tanks.

Fiberglass underground fuel storage tanks can be used to store gasoline, aviation fuel, gasohol (90% gasoline and 100% ethanol mixture), jet fuel, diesel fuel, potable water or waste water at ambient underground temperatures, or fuel oil at temperatures not to exceed 65°C'.

Tanks to be used to store any other materials should be cleared with Amiantit  before purchase and installation.

Fiberglass tanks are impervious to the effects of external corrosion. Because they will not leak due to corrosion. Fiberglass underground! tanks eliminate worries over pollution and related environmental problems.

Corrosion is caused by a direct current discharge from underground steel tanks. There are two sources of corrosion  of steel tanks: galvanic action and stray electrical currents..

Galvanic action is an electrical cell phenomenon which produces current. It is caused by such things as dissimilar metal, varying steel tank surface conditions and non-homogeneous backfill. These conditions even vary within a single installation so that when testing soil resistivity, several tests must be made at different points of the site over a period of time, to make the resistivity test results valid and useful. Conditions which indicate that corrosion will occur from galvanic action include: soil resistivity, soil pH, differential oxygen (different levels of. oxygen exist at different points around steel tanks), new Steel added to installation with old steel tanks, and anaerobic bacteria. Other variable factors, which may contribute to corrosion include: high water table, cinders, landfill, salts, fertilizers and septic tanks.

Stray electrical currents are man made. Through grounding, these man made electrical currents return to their source, taking the path of least resistance. The current will travel along underground steel tanks, taking metal ions from the tank as the current discharges or leaves the tank, resulting in corrosion. Underground steel tanks are vulnerable to stray electrical current corrosion, even with well designed external protection. There is no steel tank protective system that is effective against stray current corrosion.

Internal corrosion, contributing to many steel tank leaks and failures, is also eliminated with Fiberglass underground tanks. External protection will do nothing to prevent internal corrosion. Factors which contribute to internal corrosion include: condensation from the product, oxygen, formation and deposition of sludge, climatic conditions and the presence of bacteria.

 

Maintenance Free

Because Fiberglass tanks are not susceptible to corrosion, they're maintenance free. There's no need for periodic  testing, record keeping or replacement of cathodic protection systems. You save the difference in time, money and  concern over the service life of the tank and avoid potential financial liabilities does not exceed 1 psi. Fiberglass tanks are designed for liquids with a specific gravity up to 1.5.mm 

Fiberglass underground tanks are made from polyester resins reinforced with glass fiber and silica sand. Petroleum products stored in Fiberglass tanks may be easily changed, without affecting either the tank, or the new product. Common additives in stored products will not change or damage tanks.

 

Strong and Durable

Properly installed, Fiberglass tanks are strong enough to withstand constant traffic from the heaviest over the road vehicle (H 20 axle loads 14,500 Kg/axle).

Fiberglass underground tanks are designed to meet specific performance criteria in dry or fully flooded holes when properly installed.

 

 

UL Listed

Amiantit Fiberglass Fuel Storage Tanks are the only tanks produced in the Middle East Listed by Underwriters Laboratories.

An additional assurance of the high quality of AFIL tank all tanks must be vented, as tanks are designed for operation at atmospheric pressure only, except for use with vapor recovery systems provided the pressure or vacuum.

 

Economical

Fiberglass underground tanks offer incomparable performance benefits combined with quick, easy installation. The performance of a Fiberglass underground tank means substantial savings over the life of the installation, compared to a steel tank. Fiberglass tanks mean no corrosion, no maintenance and no additional expense for tank replacement. In short, Fiberglass underground storage. tanks are your lowest cost tanks.

 

Local Availability

A manufacturing plant located in Dammam, assures rapid delivery of Fiberglass tanks to any part of the Kingdom of Saudi Arabia as well as any other country.

UL Listed Amiantit Fiberglass Tanks for the underground storage of petroleum products.

The following diameters and models are covered.

Size

Model

Capacity

Diameter

Liters
Gallons

mm

inch

550

D 5

2000

530

1219

48

1000

D 5

3600

950

1219

48

2000

D 6

8060

2310

1829

72

3000

D 6

11430

3130

1829

72

4000

D 6

14870

3930

1829

72

6000

D 6

22745

6010

1829

72

4000

D 6

15260

4030

2337

92

6000

D 6

22400

5930

2337

92

8000

D 6

29630

7830

2337

92

10000

D 6

36820

9730

2337

92

12000

D 6

44020

11630

2337

92

15000

D 3

56750

14990

3000

118.1

20000

D 3

74520

19690

3000

118.1

25000

D 3

92650

24476

3500

137.8

30000

D 3

118120

31205

3500

137.8

40000

D 3

148370

39195

3500

137.8

48000

D 3

180420

47661

3500

137.8

 

 

Standard Tank Data

Standard Tank Notes:

  • Hold down strap rib locations are indicated by arrows.
  • GRP encapsulated steel deflector plate (300mm sq) under every fitting opening.
  • Fittings cannot be installed in locations marked:
  • Manways cannot be located over end rib on any sire tank.

Note: All dimensions are in millimeters.

Model
Tank Inside Diameter (mm)
Standared Manway Positioning
Standard NPT Fitting Positions
Actual Capacity US Gal/Liter
Nominal Capacity (US gals)
Nominal Weight (KG)
D6
6000
6010 / 22745 2,4,7,8,12,13
-
1829
924

D6

4000

3930 / 14870

1,3,5,6,9,10

1829

640

D6

3000

3130 / 11430

2,4,5,7

1829

554

D6

2000

2130 / 8060

1,2, 3,5

-

1829

393

D5

1000

950 /3600

1,2,3, ctr

-

1219

186

D5

550

530/2000

1,2,3, ctr

-

1219

113

D5

250

250 /950

1.2, ctr

-

1219

77

 

Model
Nominal Capcity (US gallons)
Acual Capacity US gallons; litters positions
Standard NPT Fitting (mm)
Standard Manway Position
Tank Inside Diameter (mm)
Nominal Weight (KG)
G6
15000
14,478 /54.800
2,4,13,14,23,25
21 22
2337
2217

G6

12000

11,630 /44,020

2,4,10,11,17,19

15. 16

-

1717

G6

10000

9.730 / 36.820

2,4,8,9,14,15

12 13

-

1435

G6

8000

7.830 / 29,630

2,4,6,7,10,11

8 9

-

1195

G6

6000

5.930 / 22.440

2,3,4,ctr,7,8

-

-

933

G6

4000

4,030 / 15,260

1,2,3, 4

-

-

643

G6

3000

3.130 / 11,850

1,2,3,

-

-

566

 

Model
Nominal
Capacity
(U.S.gals)
Position
Actual
Capacity
(U.S.gals.liters)
(mm)
Standard
NPT
Fitting
STANDARD
MANWAY
POSITION
Tank
Inside
Diameter
Nominal
Weight
(Kgs)

D3

30,000

30.650 / 116,000

8,10,15,22,27,32

25, 26

3000

3855

D3

25,000

2S,960 / 98,240

2,6,11,15,20,25

22, 23

317

D3

20,000

19.690 / 74,520

2,3,9,10,14,15

12, 13

-

2710

D3

15,000

14,990 / 56,750

2,3,5,6,7,10

8, 9

2162

 

 

Fiberglass Standard Flanged Manways

 Manways can be installed centered over any of the tank ribs except for end ribs, lift lug ribs or hold down strap ribs. The standard manway (bearing loads to 550 Kg) is 560mm in diameter equipped with an epoxy painted carbon steel cover and includes a gasket and 24 zinc coated1/2"x1 1/2" bolts, nuts and washers. Fiberglass extension tubes 560mm diameter are available in 600mm length which include extra gasket and set of nuts, bolts and washers.

 

Large Diameter Manways for 2337mm, 3000 mm and 3500mm diameter tanks

A 750mm or 900mm Fiberglass flanged manway can be installed over any tank ribs, except over end ribs or hold­ down strap ribs. 750mm and 900mm diameter extension tubes are also available in 600mm lengths which include extra gasket and set of nuts, bolts and washers.

 

Fiberglass Heavy duty Flanged Manways

 Heavy duty 560mm manways (bearing loads to 1000 kg) are available. They can be installed in place of the standard 560 mm manways previously detailed. All 750mm and 900mm manways are heavy duty.

Fiberglass heavy duty manways must be specified on tanks equipped with helical heating coils, agitators or pumps with a total downward load greater than 560 kg but less than 1000 kg.

 

 

 Fiberglass Manway Riser Pipe

 The Fiberglass manway riser pipe provides a non approved corroding, spacious, economical access from a manhole box and cover, (traffic areas require reinforced concrete road surface) down to the tank manway. Since the bottom is open, the manway riser will fill with water as water surrounds it on the outside The manway riser pipe is available in lengths from 750mm to 1350mm in 150mm increments, and consists of a 1200mm diameter tube, open at one end, and a 570mm centered square hole with rounded corners at the other end

A maximum of two manway risers may be used with tank sizes of 10,000 gallons and larger. Only one riser is per mitted with tank sizes less than 10,000 gallons due to possible buoyant forces. The riser must be installed with 150mm min. clearance from the top of the tank. The bottom of the riser should be supported with 50x 100 x900mm min, or equivalent wood pieces to rest on a minimum of 100mm backfill material from tank top.

 


4'' Fiberglass Fill Tube for 6'' NPT Fittings

 Fiberglass fill tubes screw into the bottom of a 6 "x 4"  double tapped reducer bushing which is inserted in a standard 6 NPT half coupling. The bottom of the fill tube is located 100mm above the bottom of the tank with the end slanted at 45 ° (unless otherwise specified). The top of the four inch opening is closed with a 4' threaded plug to facilitate shipment and testing.

 

Steel NPT Fittings

 Steel NPT (National pipe thread) fittings are available in 2", 4", and 6" sizes. The 2" size is a full coupling, the 4", and 6" sizes are half couplings. Two 2" fittings or two 4" fittings may be located between the same two ribs perpendicular to the tank centerline. All other fittings are located along the top centerline of tank.

 

Fill Tube for 4 NPT'' Fittings

Fill tubes for 4" fittings arc not supplied by Amiantit Fiberglass, but are available from petroleum  equipment distributors Tube slips inside fill pipe to permit proud to he dropped near bottom of tank. Thus are usually furnished in standard lengths flared at one end, straight cut at other. The straight end should be cut oil a 45 ° angle and locate100mm above the bottom of the tank.

 

Tank Ladders

Fiberglass  tanks, are available with a factory installed carbon steel ladder. Attached to the tank. bottom with GRP mounting lugs the ladders are retained at the top carbon steel ladder. Attached to the tail. bottom with GRP mounting lugs on the trunk of the manway to allow for

 

Approvals

Amiantit Fiberglass underground fuel storage tanks are UL ( Underwriters Laboratories ) 

Amiantit Pipe Systems
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