Ensun is a production and trading company that specializes in producing solar water heater parts, especially wide-range buffer tanks. We offer these tanks in different sizes, colors, and materials. It is also available in an extensive insulation option range according to your requirements and applications.Ensun accepts flexible customization for buffer tanks according to your specifications. Our buffer tank is manufactured in-house and assures a good quality level.
| Specification | Details |
|---|---|
| Application | Hot Water / Chilled Water Buffer Storage |
| Tank Capacities | Standard: Up to 1000 gallons (Custom sizes available) |
| Connection Sizes | 2", 3", 4" for hot water; 3" to 12" for chilled water |
| Working Pressure | Up to 150 psi |
| Operating Temperature | Up to 450°F |
| Standards | ISO 9001, CCC, ASME tested |
| Baffle Design (Chilled Water) | Included for proper internal circulation |
| External Finish Options | Color customizable |
| Insulation Thickness | Customizable: standard, high-density, ultra-thick |
| Mounting Options | Floor standing with seismic restraints |
| Ports and Sensors | Equipped with thermowells, temperature, and pressure ports |
| Materials | Carbon steel, stainless steel, copper |
| Insulation Materials | Polyurethane foam, fiberglass, mineral wool |
| Warranty | 10–15 years |
Prevents short cycling by maintaining a stable water volume.
Enhances the life and efficiency of heat pumps and solar thermal systems.
Accommodates a wide temperature range up to 450°F.
Offers robust structural integrity with ASME tested configurations.
Equipped with advanced connection systems and seismic restraints.
Highly customizable to meet specific application requirements.
Optional internal baffles ensure uniform water distribution in chilled water applications.
Aesthetic finishes and surface treatments to blend with existing infrastructure.
Optional integration with digital sensors and smart control systems.
Reliable performance across commercial, industrial, and residential sectors.
The buffer tank is an essential component in any modern solar or heat pump-based water heating system. Designed to manage and store excess thermal energy, these tanks help optimize system efficiency by preventing frequent on-off cycling, also known as short cycling, especially under conditions of minimal heating load. These high-performance buffer tanks ensure a consistent and minimum flow rate within heat pump systems, improving overall system longevity, stability, and energy savings.
Manufactured under stringent quality protocols and compliance with international standards such as ISO 9001, CCC, and ASME, each buffer tank reflects superior craftsmanship, precise engineering, and the highest safety parameters. Designed for both hot and chilled water systems, these tanks are available in a wide array of sizes, colors, insulation types, and connection configurations to suit a broad spectrum of residential, commercial, and industrial needs.
Buffer tanks are used to maintain consistent water volume and temperature within thermal systems. They act as temporary storage for heated or chilled water, depending on the application, and are particularly useful in setups involving solar collectors or heat pumps, which can produce inconsistent heat flow due to fluctuating sunlight or varying load conditions.
By storing excess thermal energy during low-demand periods and releasing it during peak demand, buffer tanks smooth out the temperature and pressure fluctuations within the water heating system. This greatly improves energy efficiency, operational safety, and comfort for end-users.
Available with grooved pipe connections, sensor ports, seismic restraints, and baffle designs (for chilled water systems), these tanks are built to operate at pressures up to 150 psi and temperatures up to 450°F. Whether you need a compact unit for residential use or a large-scale solution for industrial environments, these buffer tanks can be customized accordingly.
The buffer tank’s primary function is to decrease cycling heat. Other than that, its other operation is for thermal energy storage. This tank can hold enough heated water and runs it through the hydronic system.
As a thermal energy storage, it is possible since they used the tank to generate heating. This heat is usable for later usage. Additionally, the buffer tank’s efficiency in storing enables balanced cycling requirements for alternate turns. The process of reducing the cycling frequency cuts regular costs.
Here are some benefits of using buffer tanks that might be appropriate for optimization
The structure of buffer tanks has an excellent circulation system for water and gas. Waters discharge from the lower part and release gas in the upper portion with pressure. Therefore, the role of the buffer tanks improves the risk of malfunctions and flowing.
On the bottoms of the buffer tanks, impurities from the water source are retained. It avoids creating a problem for the internal pipework that might impair performance.
Without buffer tanks, the compressors continue to alternate, switching on and off when temperatures rise, impairing their lifespan.
The two buffer tank variations’ ideal qualities, which may be suitable for specific needs, are listed below.
SUNECO Solar Technology has an experienced team dedicated to ensuring the highest standards in solar water heating performance. We are committed to delivering personalized customer solutions and ensuring long-lasting product reliability in every installation. Your orders for solar heating systems are closely monitored and implemented to maintain superior product quality from production to delivery.
SUNECO’s solar thermal division operates 24 hours a day, 7 days a week, ensuring responsive service and support across all time zones and regions. Whether you need a solar water heater for a home, a custom solar collector for a commercial building, or accessories for a full installation, SUNECO is ready to serve with consistent excellence and technical expertise.
