Pressure vessel AQUA OLA 24l, horizontal

Product detailed description

Horizontal pressure vessels are essential components in water supply systems, especially in residential and small-scale industrial applications. They store pressurised water to ensure a stable supply and reduce the frequency of pump activation. In domestic settings, these vessels are commonly integrated with submersible pumps, transfer pumps, or pressure boosters. Installers often encounter scenarios where the vessel must fit into confined spaces while maintaining reliable performance under fluctuating demand conditions. Proper sizing ensures that the system maintains pressure stability and minimises wear on the pump motor.

For systems with limited vertical clearance, a horizontally oriented vessel is the optimal choice. This configuration allows for easier access to valves and connections during maintenance. The AQUA OLA 24L model is particularly suited for properties with moderate water usage patterns, such as single-family homes or small commercial premises. Its compact footprint makes it ideal for utility rooms, basements, or mechanical areas where space is constrained. When integrated with a pressure switch, the vessel helps maintain consistent delivery pressure and reduces the risk of dry-running conditions.

Technical parameters

EAN	8585054502226
Volume (l)	24
Dimensions H x W x D (cm)	36.5x47x28
Weight	3.95 kg
Code	PR_41668
Brand	AQUA OLA

The 24L capacity is suitable for systems with average water consumption levels. A working pressure limit of 6 bar ensures compatibility with standard residential and light industrial pump sets. The pre-charge pressure of 2 bar at the factory is appropriate for most low-rise domestic applications. The EPDM bladder is compatible with potable water standards, making it suitable for drinking water systems. The dimensions (36.5 x 47 x 28 cm) allow for flexible placement in tight spaces, provided there is sufficient clearance for maintenance access.

Installation and connection

Installation begins with selecting a location that allows for easy access to the pressure gauge and air valve. The vessel should be mounted securely on a stable surface to prevent movement during operation. Connections are made using standard pipe threads; verify that the pump discharge line matches the vessel’s inlet size. The air valve is typically located on the top of the vessel and should be accessible for periodic pressure checks.

Connect the vessel to the pump discharge line using a union fitting to simplify future maintenance. Ensure that the pressure switch is correctly adjusted to match the vessel’s pre-charge pressure. A common mistake is failing to bleed air from the system before commissioning, which can lead to inaccurate pressure readings. Another frequent error is neglecting to isolate the vessel with a gate valve, which is necessary for independent servicing without disrupting the entire system.

Compatibility and accessories

This pressure vessel is compatible with any pump that does not exceed the 6 bar working pressure limit. It is typically used in conjunction with submersible pumps, pressure-boosting systems, or transfer pumps. To complete the installation, a pressure gauge, air valve, and isolation valves are required. A pressure switch must be included to regulate pump activation based on system demand. No additional accessories are specified for this model, but installers should ensure that all fittings are compatible with the EPDM bladder material to avoid chemical degradation.

Technical background for designers

The vessel operates on the principle of compressed air and water displacement within a sealed chamber. The EPDM bladder separates the air and water compartments, allowing the vessel to store energy in the form of compressed air. As water is drawn from the system, the bladder contracts, maintaining pressure until the pump reactivates. The steel body provides structural integrity and resistance to external forces, while the bladder ensures compatibility with potable water standards.

Designers should consider the system’s peak demand when selecting the vessel size. Larger vessels reduce the number of pump cycles, extending the lifespan of the pump motor. The working pressure must be set according to the pump’s maximum allowable output to prevent over-pressurisation. Long-term performance depends on regular air pressure checks, as gradual air loss can affect the vessel’s ability to maintain stable pressure. The vessel is not suitable for high-pressure applications beyond 6 bar, as this would cause the bladder to stretch beyond its elastic limits.

Service and operation

Maintenance involves checking the air pressure in the vessel at least once every six months. Use a pressure gauge to measure the internal air pressure and compare it to the recommended pre-charge level. If the pressure is below specification, add air through the valve until it reaches the correct level. Avoid over-pressurisation, as this can damage the bladder. No other routine maintenance is required, and the vessel does not require descaling or cleaning due to the separation of water and air by the bladder.

During operation, monitor the pump’s frequency of activation. An increase in cycling may indicate a loss of air pressure or a leak in the bladder. If the vessel fails to maintain pressure despite regular checks, it may need to be replaced. The extended warranty of three years reflects the durability of the steel casing and EPDM bladder when properly maintained.

Frequently asked questions

Can the AQUA OLA 24L be used with a submersible pump?
Yes, provided the pump’s maximum output pressure does not exceed 6 bar. The vessel is compatible with most submersible pump models used in domestic and small industrial applications.

How often should the air pressure be checked?
Air pressure should be verified approximately every six months. A drop in pressure indicates air loss and requires adjustment to maintain optimal performance.

Is the EPDM bladder suitable for potable water?
Yes, the EPDM bladder is specifically designed for potable water systems and meets relevant standards for material compatibility and chemical resistance.

The vessel is not designed to handle pressures exceeding 6 bar and should be used strictly within its specified limits.