Can multiple storage tanks be connected in series?
Yes, it is possible to connect several storage tanks in series within industrial processes, depending on the system design and application.
Series connection can be used to manage storage capacity, create buffer zones or contribute to a smoother flow in the process, depending on operating conditions.
Processöverskott offers stainless steel storage tanks in stainless steel 304 and acid-proof 316/316L in various sizes and designs. Tanks can be integrated in series or parallel connected systems depending on the application and technical conditions.
What does series connection of tanks mean?
Serial connection means that the liquid passes from one tank to the next in a specific order. The outlet of the first tank is connected to the inlet of the next tank. This is different from parallel connection where several tanks are filled and emptied at the same time.
When is series connection used?
- In stepwise process management
- For multi-stage sedimentation or separation
- When equalizing temperatures between tanks
- For buffer storage between production steps
- For chemical reactions that take place in several phases
Technical requirements for series connection
For safe and efficient operation, correctly dimensioned pipe connections, valves and level control are required. The system should also be equipped with:
- Level gauge in each tank
- Shut-off valves and check valves
- Pressure relief for pressurized systems
- Automated control for flow control
Pressurized and atmospheric systems
When connecting pressure tanks in series, it may be relevant to take into account applicable requirements, for example linked to PED and CE, depending on the application and the design of the system.
Pressure balancing between tanks can be an important factor to consider to manage pressure conditions in the system.
In atmospheric systems, the focus is often on level control and flow management rather than pressure, depending on the process design and operating conditions.
Advantages of series-connected storage tanks
- Flexible capacity increase
- Smoother flow in production
- Possibility of stepwise treatment of liquids
- Easier maintenance by isolating one tank at a time
- Optimized process control
Risks and challenges
- Incorrect level balancing
- Pressure differences between tanks
- Uneven flow in case of poor dimensioning
- More complex control systems
Materials and construction
Stainless steel 304 is often used for handling standard fluids, while acid-resistant 316/316L is found in applications where media can be more corrosive in the process industry.
When connecting tanks in series, it may be relevant to take into account that the design, pressure conditions and temperature requirements are adapted to the system design. The conditions vary depending on the application and operating conditions.
Executive summary
Series connection of multiple storage tanks is an effective solution to increase capacity and improve process control. Proper sizing of piping, valves and level control is essential for safe and stable operation, especially in pressurized systems.
Frequently asked questions about series-connected storage tanks
Can several storage tanks be connected in series?
Yes, it is a common solution in industry to increase capacity and create stepwise process management.
What is the difference between series and parallel connection?
In series connection, the liquid passes through the tanks in order. In parallel connection, several tanks are filled and emptied simultaneously.
Is special equipment needed?
Yes, level gauges, valves, check valves and sometimes automated controls are required for safe operation.
Can pressure tanks be connected in series?
Pressure tanks can be connected in series in some cases, depending on the design of the system and its use in the process industry.
In this type of solution, it may be relevant to take into account factors such as pressure balancing, design and choice of safety components, such as safety valves. Requirements linked to PED, for example, may also be relevant depending on the application.
What are the benefits?
Increased flexibility, better process control and the ability to isolate tanks for maintenance without stopping the entire production.