Day Tank Graphics
Day Tank Graphics

Day Tank Manufacturer for Industrial Chemical Storage System

A Day Tank is a small-capacity storage tank designed to hold and supply a limited quantity of fuel, chemicals, water, or process liquids for short-term operational use. The end use of the product is usually a generator. The purpose of the day tank is to provide immediate product to the end user, where the supply otherwise would be influenced by product temperature, viscosity, and inadequate supply pressure. A day tank is used to hold and supply a limited quantity of liquid (such as fuel or chemicals) for short-term, daily consumption. 

A day tank is typically installed near the equipment, such as generators, boilers, or process systems.  To ensure a continuous and reliable supply of fluid without needing direct connection to the main storage tank at all times. It sits between bulk storage (large tanks, tank farms, or delivery trucks) and the point-of-use equipment to provide a reliable, steady feed, conditioning, and safety buffer.

Day Tank Details

ParameterDetails
Material of ConstructionMild Steel (MS), Stainless Steel (SS), HDPE, FRP
Capacity Range50 Liters to 5,000 Liters (custom sizes available)
ShapeCylindrical (Vertical/Horizontal), Rectangular
Wall Thickness3 mm to 10 mm (depends on material and capacity)
Design TypeOpen top / Closed top
Fuel / Liquid TypeDiesel, Oil, Chemicals, Water
Operating Temperature-10°C to 80°C (depends on material used)
Pressure RatingAtmospheric (generally not designed for high pressure)
Level Control SystemFloat switch, level sensor, level gauge
Inlet ConnectionFlanged or threaded connection
Outlet ConnectionBottom outlet with valve
Overflow ConnectionProvided to prevent overfilling
Vent PipeIncluded for pressure balance
Pump IntegrationTransfer pump or dosing pump (optional)
Filtration SystemOptional fuel filter or strainer
Coating / LiningAnti-corrosion coating or internal lining (for MS tanks)
Mounting TypeSkid-mounted / Floor-mounted
Stand / SupportMS frame or base support
Standards ComplianceAs per ISO / ASTM / API standards
Safety FeaturesLevel alarms, overflow protection, leak-proof design
AccessoriesLevel indicator, control panel, valves, piping, alarm system
  • Capacity & Sizing: Designed to hold approximately 24 hours of fuel, facilitating frequent fuel turnover, which reduces the risk of fuel degradation and contamination.
  • Automation: Integrated with an Automatic Fuel System, comprising a transfer pump and a float switch that automatically triggers a fill cycle when the level drops, typically handling 10-15 minute cycles.
  • Safety Mechanisms: Features include high/low-level alarms to prevent overfill or depletion, a fusible link valve for fire safety, and automatic shutoff valves.
  • Filtration & Fuel Quality: Often includes built-in filters to ensure clean fuel reaches the engine, reducing engine maintenance.
  • Monitoring & Control: Equipped with level gauges, control panels, and testing buttons for pumps and alarms.
  • Compact Construction: Usually compact for space-efficient installation near the generator, reducing the need for long, vulnerable fuel lines.
  • Materials: Constructed from durable materials, commonly steel (horizontal or vertical) for fuel tanks, or specialized thermoplastics for chemical applications.

1. Raw Material Inspection

  • Verification of material grade (MS, SS, HDPE, FRP)
  • Checking mechanical properties and chemical compatibility
  • Ensures compliance with relevant standards (ISO/ASTM/API)

2. Visual Inspection

  • Examination for surface defects, dents, cracks, or corrosion
  • Inspection of weld joints, edges, and overall finishing quality

3. Dimensional Accuracy Test

  • Measurement of thickness, diameter, height, and fittings placement
  • Ensures the tank meets design specifications

4. Hydrostatic (Leak) Testing

  • The tank is filled with water to check for leaks
  • Confirms leak-proof construction and joint integrity

5. Pressure Testing (If Applicable)

  • Conducted for tanks designed for slight internal pressure
  • Ensures structural strength under operating conditions

6. Weld Quality Testing (For Metal Tanks)

  • Non-Destructive Testing (NDT) methods like:
    • Dye Penetrant Test (DPT)
    • Ultrasonic Testing (UT)
  • Ensures strong and defect-free welds

7. Coating & Lining Inspection

  • Thickness and adhesion testing of internal/external coatings
  • Ensures corrosion resistance, especially for MS tanks

8. Load & Structural Testing

  • Evaluates the tank’s ability to withstand operational loads
  • Includes support structure and skid strength checks

9. Functional Testing of Components

  • Testing of level sensors, float switches, pumps, and alarms
  • Ensures proper functioning of control systems

10. Overflow & Safety System Check

  • Verification of overflow line, vent pipe, and emergency features
  • Prevents overfilling and pressure build-up
Repairing Service

Custom Product Manufacturing Available

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.

Application of Day Tank

Generator Sets

They are commonly used in backup power generators to ensure a consistent, clean fuel supply. They enable the transfer of fuel from a large, distant bulk tank to a smaller, local tank for immediate use in hospitals, data centers, and industrial facilities.

Boiler Systems

Day tanks provide a steady, local supply of oil to boilers in commercial buildings and industrial plants, improving efficiency and supporting automatic refill, often with built-in leak monitoring.

Industrial Fuel Handling

They are utilized in factories to manage daily fuel consumption for machines that run on diesel or heavy fuel oil, featuring transfer pumps and level controls to prevent overfills or dry runs.

Marine Fuel Systems

Used in ships and marine vessels, these tanks provide a reliable, intermediate supply of fuel to generators or engines.

Chemical Transfer

Beyond fuel, they are used to store and dispense a 24-hour supply of chemicals in industrial processes.

Why Choose Petron Thermoplast ?

Petron Thermoplast is known for precise manufacturing, quality materials, and adherence to standards. Working with a trusted manufacturer like Petron Thermoplast to ensures the quality is 100%. Day Tanks that deliver to consistent performance in demanding environments. With the experience in producing standard and custom designs, Petron Thermoplast provides solutions tailored to the needs of diverse industries worldwide.

Conclusion

A day tank is a vital component for the systems, required a reliable and continuous of short-term supply of the fuel and liquids. By storing the limited quantity to close the point. It ensures to smooth operation of the equipment to such as generators, boilers, and the industrial to processes without any interruption.

Day tanks are enhanced to the operational efficiency and reducing the dependency on the main storage tanks. They are Proper material selection and the quality testing to further ensure the safe and long-lasting performance. A day tank provides convenience, safety, and efficiency in liquid management, making it an essential part of modern industrial and commercial setups.

Frequently Asked Questions

1. What is a day tank?

A day tank is a small storage tank used to hold and supply fuel or liquid for short-term (daily) use, typically connected to equipment like generators or boilers.

2. What is the purpose of a day tank?

Its main purpose is to ensure a continuous and reliable supply of fuel or liquid to equipment without directly relying on the main storage tank.

3. What liquids are stored in a day tank?

Day tanks are commonly used for:

  • Diesel fuel
  • Furnace oil
  • Lubricating oil
  • Water or certain chemicals
4. What is the typical capacity of a day tank?

Capacity usually ranges from 50 liters to 5,000 liters, depending on the application and consumption requirements.

5. Where are day tanks used?

They are widely used in:

  • Diesel generator systems
  • Boiler fuel systems
  • Industrial processing units
  • Commercial buildings
6. How does a day tank work?

Fuel or liquid is transferred from the main storage tank to the day tank. From there, it is supplied directly to the equipment, often using pumps and level control systems.

7. What materials are used to manufacture day tanks?

Common materials include:

  • Mild Steel (MS)
  • Stainless Steel (SS)
  • HDPE
  • FRP
8. What safety features are included in a day tank?

Typical safety features include:

  • Overflow protection
  • Level indicators and alarms
  • Vent pipes
  • Leak-proof construction
9. Can a day tank be used outdoors?

Yes, day tanks can be designed for outdoor use with proper coating, lining, or UV-resistant materials.

10. What maintenance is required for a day tank?
  • Regular cleaning
  • Checking for leaks or corrosion
  • Inspection of pumps, valves, and level systems
  • Monitoring fuel quality
11. What is the difference between a day tank and a storage tank?

A day tank is for short-term, immediate use, while a storage tank is designed for bulk, long-term storage.