Fabricated Tanks Manufacturer for Industrial Storage Solutions

A fabricated tank is a custom-engineered storage container built by assembling raw materials—typically plates or plastic sheets using cutting, rolling, and welding techniques. These tanks are designed to meet specific industrial requirements for storing liquids, gases, or dry materials, often adhering to standards like API 650 or ASME. Fabricated tanks are designed in various shapes, sizes, and capacities to meet the operational needs of different industries.

A Fabricated Tank is a specially manufactured storage or processing tank made by assembling and welding different sections of material such as HDPE, carbon, FRP, or PVC according to specific design requirements. These tanks are custom-built to store, process, or transport liquids, chemicals, water, or industrial fluids safely and efficiently.

Fabricated Tanks Details

Parameter	Details / Specification
Product Name	Fabricated Tank
Tank Type	Vertical / Horizontal / Cylindrical / Rectangular
Material Options	HDPE, PP, FRP, PVC, CPVC, Stainless Steel, Carbon Steel
Manufacturing Process	Fabrication & Welding
Capacity Range	100 Liters to 100,000 Liters or customized
Diameter Range	As per design requirement
Height / Length	Customized according to application
Wall Thickness	5 mm to 50 mm or as required
Pressure Rating	Atmospheric / Low Pressure / Pressurized
Operating Temperature	-40°C to +120°C (depends on material)
Density (HDPE Tank)	0.94 – 0.96 g/cm³
Jointing Method	Butt Weld / Extrusion Weld / Flanged
Surface Finish	Smooth / Polished / UV Stabilized
Chemical Resistance	Excellent against acids, alkalis, and chemicals
Corrosion Resistance	High (depends on material type)
UV Resistance	Available with UV stabilized material
Reinforcement Options	FRP Reinforcement / MS Structure Support
Shape Options	Round, Square, Rectangular, Cone Bottom
Nozzle & Fittings	Inlet, Outlet, Vent, Drain, Level Gauge
Standard Compliance	ISO, ASTM, DIN, ASME
Testing Methods	Hydro Test, Leak Test, Visual Inspection
Installation Type	Indoor / Outdoor
Service Life	20–50 years depending on application
Applications	Chemical Storage, Water Treatment, Industrial Processing

1. Customizable Design

Available in different shapes, sizes, and capacities
Designed according to specific industrial requirements
Can be fabricated as vertical, horizontal, rectangular, or cylindrical tanks

2. Strong & Durable Construction

Manufactured using high-quality materials
Capable of handling pressure, temperature, and heavy-duty operations
Long-lasting structural strength

3. Excellent Chemical Resistance

Depending on the material used, fabricated tanks offer resistance to:

Acids
Alkalis
Corrosive chemicals
Industrial fluids

4. Corrosion Resistance

Materials like HDPE, FRP, PVC, resist rust and corrosion
Suitable for harsh industrial environments

5. Leak-Proof Performance

Precision welding and fabrication ensure secure joints
Prevents leakage and contamination

6. Wide Material Options

Fabricated tanks can be manufactured using:

HDPE
PP
FRP
PVC / CPVC
Stainless Steel
Carbon Steel

7. Temperature Resistance

Suitable for low and high-temperature applications depending on material type
Maintains performance under varying operating conditions

8. UV & Weather Resistance

UV stabilized materials available for outdoor installations
Resistant to sunlight and environmental exposure

9. Lightweight & Easy Installation

Plastic fabricated tanks are lightweight and easy to transport
Simplifies handling and installation processes

10. Low Maintenance

Corrosion-resistant materials reduce maintenance requirements
Easy cleaning and inspection

11. High Storage Capacity

Available from small storage units to large industrial tanks
Suitable for bulk liquid storage applications

12. Safety & Reliability

Designed according to industrial standards
Provides safe storage and handling of chemicals and liquids

Nominal Pipe Size (NPS)	Outer Diameter (OD)	Typical Wall Thickness	Pressure Class / SDR
20 mm (¾”)	20 mm	2.0 – 3.0 mm	SDR 11 / PN16
25 mm (1”)	25 mm	2.3 – 3.5 mm	SDR 11 / PN16
32 mm (1¼”)	32 mm	2.4 – 4.0 mm	SDR 11 / PN16
40 mm (1½”)	40 mm	2.5 – 4.5 mm	SDR 11 / PN16
50 mm (2”)	50 mm	3.0 – 5.0 mm	SDR 11 / PN16
63 mm	63 mm	3.8 – 5.8 mm	SDR 11 / PN16
75 mm	75 mm	4.5 – 6.8 mm	SDR 11 / PN16
90 mm	90 mm	5.4 – 8.2 mm	SDR 11 / PN16
110 mm	110 mm	6.6 – 10.0 mm	SDR 11 / PN16
160 mm	160 mm	9.5 – 14.6 mm	SDR 11 / PN16
200 mm	200 mm	11.9 – 18.2 mm	SDR 11 / PN16
250 mm	250 mm	14.8 – 22.7 mm	SDR 11 / PN16
315 mm	315 mm	18.7 – 28.6 mm	SDR 11 / PN16
400 mm	400 mm	23.7 – 36.3 mm	SDR 11 / PN16
500 mm	500 mm	29.7 – 45.4 mm	SDR 11 / PN16

Tank Type / Pressure Class	Pressure Rating	Typical Application
Atmospheric Tank	0 – 0.5 bar	Water and chemical storage
Low Pressure Tank	0.5 – 2 bar	Industrial fluid handling
Medium Pressure Tank	2 – 10 bar	Chemical processing systems
High Pressure Tank	10 – 25 bar	Industrial process applications
HDPE Fabricated Tank	PN6 to PN10	Chemical and water storage
PP / PVC Fabricated Tank	PN6 to PN10	Corrosive chemical handling
FRP Fabricated Tank	PN6 to PN16	Chemical and wastewater systems
Stainless Steel Tank	PN10 to PN25	High-pressure industrial use
Carbon Steel Tank	PN10 to PN25 or higher	Oil, gas, and process industries

Material Type	Operating Temperature Range	Density
HDPE Fabricated Tank	-40°C to +60°C	0.94 – 0.96 g/cm³
PP Fabricated Tank	0°C to +100°C	0.90 – 0.92 g/cm³
PVC Fabricated Tank	0°C to +60°C	1.30 – 1.45 g/cm³
CPVC Fabricated Tank	0°C to +90°C	1.50 – 1.60 g/cm³
FRP Fabricated Tank	-20°C to +120°C	1.50 – 2.00 g/cm³
Stainless Steel Tank	-200°C to +800°C	7.75 – 8.10 g/cm³
Carbon Steel Tank	-29°C to +425°C	7.80 – 7.90 g/cm³

User Manual for Fabricated Tanks

1. Customization of Fabricated Tank

a) Material Customization

Fabricated tanks can be manufactured using different materials depending on the application:

HDPE
PP (Polypropylene)
FRP (Fiber Reinforced Plastic)
PVC / CPVC
Stainless Steel
Carbon Steel

Material selection depends on:

Chemical compatibility
Operating temperature
Pressure conditions
Corrosion resistance requirements

b) Size & Capacity Customization

Tanks can be customized based on:

Storage capacity (100 L to 100,000 L or more)
Diameter and height
Wall thickness
Space availability and project specifications

c) Shape Customization

Available tank designs include:

Vertical tanks
Horizontal tanks
Cylindrical tanks
Rectangular tanks
Cone bottom tanks

d) Nozzle & Fitting Customization

Additional accessories can be integrated:

Inlet and outlet nozzles
Drain connections
Vent pipes
Level indicators
Flanges and valves

e) Reinforcement & Support

Customization options include:

FRP external reinforcement
MS structural support
Stiffeners and bracing for large tanks

f) Surface Finish & Coating

Surface treatment options:

Smooth internal finish
UV stabilization
Anti-corrosion coating
Polishing and protective lining

g) Pressure & Temperature Design

Fabricated tanks can be designed for:

Atmospheric storage
Low-pressure applications
High-temperature chemical storage

Processing of Fabricated Tank

a) Design & Engineering

Tank designs are prepared using CAD software
Engineering calculations ensure structural strength and safety

b) Material Cutting

Materials are cut using:

CNC cutting machines
Saw cutting
Laser cutting
Plasma cutting

c) Forming & Shaping

Sheets are rolled or molded into the required tank shape
Bending and forming processes maintain dimensional accuracy

d) Welding & Fabrication

Common joining methods:

Butt welding
Extrusion welding
TIG / MIG welding
Fusion welding

e) Assembly & Fit-Up

Tank sections, nozzles, and fittings are assembled accurately
Alignment checks are performed before final welding

f) Surface Finishing

Processing includes:

Grinding and polishing
Surface cleaning
Coating or painting
UV protective treatment

g) Testing & Quality Inspection

Fabricated tanks undergo:

Hydrostatic testing
Leak testing
Dimensional inspection
Weld quality inspection
Visual inspection

h) Packaging & Transportation

Proper packing and support structures are provided
Tanks are protected from damage during transportation

Chemical Processing: Safely stores industrial chemicals, acids, solvents, and hazardous materials, frequently using corrosion-resistant materials.
Water Treatment & Storage: Holds potable water, treated wastewater, and process water for industrial or municipal use.
Pharmaceuticals: Specialized tanks for storing active ingredients, liquid formulations, and for processing.
Industrial & Specialized Uses: Includes pressure vessels, fermentation vessels (fermenters), and distillation columns used in chemical reactions or brewing.

a) Site Preparation

Ensure the installation area is clean, level, and structurally strong
Prepare a proper foundation or support platform
Verify installation space according to tank dimensions

b) Inspection Before Installation

Before installation, inspect the tank for:

Transportation damage
Surface cracks or dents
Weld quality and fittings
Correct dimensions and specifications

c) Proper Handling & Lifting

Use suitable lifting equipment such as cranes or slings
Avoid dragging or dropping the tank
Protect nozzles, fittings, and surfaces during handling

d) Positioning & Alignment

Place the tank in the correct position according to engineering drawings
Ensure proper alignment of inlet, outlet, and drain connections
Maintain adequate clearance for maintenance access

e) Connection of Piping & Accessories

Install:

Inlet and outlet pipelines
Vent pipes
Valves and fittings
Level indicators and gauges

f) Support & Anchoring

Provide proper supports and anchoring systems
Prevent movement, vibration, or tilting during operation

g) Electrical & Safety Accessories

Earthing system
Level sensors
Safety valves
Overflow protection systems

h) Testing After Installation:

Hydrostatic testing
Leak testing
Visual inspection
Joint and weld inspection

Maintenance of Fabricated Tank

a) Routine Inspection

Regularly inspect for:

Leakage
Cracks or deformation
Corrosion or chemical damage
Loose fittings and supports

b) Cleaning

Clean the tank periodically to remove sludge, deposits, or contaminants
Use cleaning methods compatible with tank material

c) Weld & Joint Inspection

Check welded joints and flange connections
Repair or replace damaged gaskets and fittings immediately

d) Corrosion Protection

Inspect protective coatings and linings
Reapply anti-corrosion coatings if necessary

e) Pressure & Temperature Monitoring

Ensure operating conditions remain within design limits
Avoid excessive pressure and overheating

f) Preventive Maintenance

Schedule periodic maintenance checks
Replace worn-out accessories and damaged components on time

g) Safety Precautions

Depressurize and empty the tank before maintenance work
Follow industrial safety standards and use PPE

h) Documentation & Record Keeping

Maintain records of:

Inspection reports
Testing results
Maintenance schedules
Repair history

1. High-Density Polyethylene (HDPE):

Excellent chemical resistance
Lightweight and durable
Corrosion-free and leak-proof
UV and weather resistant:
Chemical storage
Water treatment plants
Effluent systems

2. Polypropylene (PP):

High chemical resistance
Good temperature resistance
Strong and lightweight:
Acid storage tanks
Chemical processing industries
Laboratory applications

3. Fiber Reinforced Plastic (FRP):

High strength-to-weight ratio
Excellent corrosion resistance
Suitable for aggressive chemical environments:
Chemical industries
Wastewater treatment plants
Marine applications

4. Polyvinyl Chloride (PVC):

Economical and lightweight
Corrosion resistant
Easy fabrication and installation:
Water storage
Low-pressure chemical systems
Drainage applications

5. Chlorinated Polyvinyl Chloride (CPVC):

Better temperature resistance than PVC
Good chemical resistance
Smooth internal surface:
Hot chemical storage
Industrial process systems

6. Mild Steel (MS):

Strong and economical
Easy fabrication and welding:
Water tanks
Industrial utility tanks
Structural support tanks

1. Raw Material Inspection

Before fabrication, all raw materials are checked for:

Material grade verification
Surface defects
Thickness accuracy
Compliance with specifications and standards

2. Dimensional Inspection

Fabricated tanks are inspected for:

Diameter and height accuracy
Wall thickness
Nozzle position and alignment
Overall dimensional tolerance

3. Visual Inspection

Visual checks are conducted to identify:

Surface cracks
Welding defects
Scratches or dents
Improper finishing
Misalignment of components

4. Weld Quality Inspection

Weld joints are tested to ensure strength and leak-proof performance.

Common Weld Testing Methods:

Visual Weld Inspection
Ultrasonic Testing (UT)
Radiographic Testing (RT)
Dye Penetrant Testing (DPT)
Spark Testing (for plastic tanks)

5. Hydrostatic Testing

The tank is filled with water and pressurized
Checks for leakage, deformation, and structural integrity
Ensures the tank can safely withstand operating conditions

6. Leak Testing

Leak testing is performed to verify:

Joint sealing quality
Nozzle tightness
Weld integrity

7. Pressure Testing

For pressure-rated tanks:

Internal pressure testing is conducted
Confirms the tank’s pressure handling capability

8. Surface Finish & Coating Inspection

Inspection includes:

Coating thickness measurement
Surface smoothness verification
Adhesion testing for coatings and linings
Corrosion protection quality checks

9. Non-Destructive Testing (NDT)

NDT methods help detect hidden defects without damaging the tank:

Ultrasonic Testing
Radiography
Magnetic Particle Testing
Dye Penetrant Testing

10. Material Identification & Traceability

Tanks are marked with identification numbers
Material batches, welders, and inspection records are maintained for traceability

11. Compliance with Standards

Fabricated tanks are manufactured and tested according to:

ISO Standards
ASTM Standards
ASME Standards
DIN Standards
ANSI Specifications

12. Final Quality Documentation

Quality records generally include:

Inspection reports
Hydro test certificates
Material certificates
Welding qualification records
NDT reports

If you are searching for customized product designs that meet your requirements, don’t worry. Petron Thermoplast also offers custom product manufacturing services to meet the unique needs of various industries. Work with our expert engineers to create custom designs suited for your application.

Types of Fabricated Tanks

1. Based on Shape/Orientation:

Vertical Tanks: Commonly used for liquid storage, often featuring cone or flat roofs.
Horizontal Tanks (Bullet Tanks): Usually shop-fabricated with cylindrical bodies and dished/hemispherical heads, ideal for storing pressurized products like LPG.
Rectangular/Square Tanks: Used when space optimization is necessary.

2. Based on Roof Type (Storage Tanks):

Fixed Roof Tanks: Includes cone, dome, or umbrella roofs; generally for lower volatility liquids.
Floating Roof Tanks: Designed to reduce vapor loss by having the roof rise and lower with the liquid level.

3. Welded Pipe Spool

Steel Tanks (Carbon/Stainless): Durable, high-pressure, used for chemicals and fuels.
Plastic/Plastic Fabricated Tanks: Fabricated from HDPE, polypropylene (PP), or PVC for corrosion resistance, specifically for storing aggressive chemicals.
Fiberglass (FRP) Tanks: Used in chemical applications, though they are susceptible to certain materials.

4. Based on Function:

Pressure Vessels: Designed for high-pressure storage, such as bullets and Horton spheres.
Mixing/Process Tanks: Fabricated with integrated agitators for blending ingredients in food, beverage, and chemical industries.
Low-Temperature/Cryogenic Tanks: Specialized for storing liquefied gases (e.g., propane, methane) at very low temperatures.
Underground/Aboveground Tanks: Classified based on installation location.

Why Choose Petron Thermoplast?

At Petron Thermoplast, quality and innovation serve as the core foundation of all operations. As the exclusive distributor of Petron Thermoplast Fittings in India, the company offers a specialized range of products, including brass transitional couplers and hydrogen-ready certified solutions. Every product is rigorously tested and carries prestigious certifications, such as DVGW for gas and IIP for water and sewerage applications. Beyond supplying hardware, their team of experts provides comprehensive technical guidance—from initial product selection to final installation—to ensure safe and efficient tank performance. When reliability is a priority, partnering with Petron Thermoplast guarantees more than just high-quality components; it provides complete, end-to-end industrial solutions.

Conclusion

Fabricated tanks are highly reliable and versatile storage solutions widely used in industrial applications for storing water, chemicals, and process fluids. Their customizable design, strong construction, and compatibility with various materials make them suitable for a broad range of operating conditions.

Manufactured using materials such as HDPE, PP, FRP, PVC, CPVC, stainless steel, and carbon steel, fabricated tanks offer excellent corrosion resistance, durability, and long service life. They are designed to withstand different pressure and temperature conditions while ensuring safe and leak-proof performance.

With advanced fabrication techniques, precise engineering, and strict quality testing, fabricated tanks provide efficient storage, easy maintenance, and dependable operation in industries such as chemical processing, water treatment, pharmaceuticals, food processing, and oil & gas. Their flexibility, cost-effectiveness, and durability make them an ideal choice for modern industrial storage systems.

Frequently Asked Questions

1. What is a fabricated tank?

A fabricated tank is a custom-manufactured storage or processing tank made by assembling and welding materials such as HDPE, FRP, PVC, or carbon according to specific industrial requirements.

2. What materials are used to manufacture fabricated tanks?

Common materials include:

HDPE
PP (Polypropylene)
FRP
PVC / CPVC
Stainless Steel
Carbon Steel

3. What are fabricated tanks used for?

Fabricated tanks are used for:

Chemical storage
Water storage
Industrial processing
Effluent treatment
Pharmaceutical and food processing applications

4. What are the advantages of fabricated tanks?

Customizable design
Corrosion resistance
Leak-proof construction
High durability
Easy maintenance
Long service life

5. What shapes are available in fabricated tanks?

Fabricated tanks are available in:

Vertical tanks
Horizontal tanks
Cylindrical tanks
Rectangular tanks
Cone bottom tanks

6. What is the pressure rating of fabricated tanks?

Pressure ratings vary depending on material and design:

Atmospheric tanks
Low-pressure tanks
PN6 to PN25 pressure-rated tanks

7. What temperature range can fabricated tanks handle?

The operating temperature depends on the material used:

HDPE: -40°C to +60°C
PP: Up to +100°C
Stainless Steel: Up to +800°C
FRP: Up to +120°C

8. Are fabricated tanks resistant to chemicals?

Yes, fabricated tanks made from HDPE, PP, FRP, PVC, and stainless steel provide excellent resistance to chemicals, acids, and alkalis.

9. Can fabricated tanks be customized?

Yes, tanks can be customized based on:

Capacity
Shape and size
Wall thickness
Nozzle positions
Pressure and temperature requirements