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Pressure-Reducing Heat Pump Buffer Tank

As part of a heat pump heating system, the buffer tank plays a role in reducing pressure and protecting the operating main unit.
It is mainly connected in series in an air source heat pump system to increase the water capacity of a small system, storing cooling or heating energy. This effectively solves the problems of load fluctuations and frequent start-ups of the main unit caused by an undersized system, thereby extending equipment life and saving energy.
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  • 30L

  • Solaraven

  • 8419901000


Product Overview


The Heat Pump Hot Water Buffer Tank from Solaraven is an essential optimization component for air source heat pump systems, designed to resolve inefficiencies caused by small system capacity and load fluctuations. As a core part of heat pump heating systems, this 30L buffer tank stores heating or cooling energy, balances system loads, and reduces frequent start-ups of the main unit. By integrating five key functions—storage, buffering, automatic venting, stabilization, and cleaning—it protects the heat pump unit, extends equipment lifespan, and improves energy efficiency. Whether for residential heating or small commercial projects, this buffer tank ensures stable, continuous hot water supply while cutting operational costs.


Pressure-Reducing Heat Pump Buffer Tank


Key Features


Load Balancing & Energy Storage

Small heat pump systems often suffer from insufficient water capacity, leading to frequent main unit start-ups and high-load operation. The heat pump buffer tank increases system water capacity by storing excess heating energy during low-demand periods. When heating demand peaks, it releases stored energy to balance loads, preventing the main unit from overworking and reducing start-stop cycles by 40%.


Pressure Reduction & System Protection

Equipped with superior pressure resistance, the buffer tank absorbs and mitigates circulating pressure generated during system operation. It releases excess pressure to maintain hydraulic balance in pipes, preventing pressure-related issues such as pipe leaks, pressure protection triggers, and main unit malfunctions. This protection is critical for avoiding high-load operation without pressure relief, which significantly shortens equipment lifespan.


Constant Temperature Supply & Defrosting Support

The buffer tank stores hot water at a preset constant temperature. Once the water reaches the set temperature, the heat pump unit shuts down automatically, reducing workload and energy consumption. During the heat pump’s defrosting cycle (when the unit pauses operation), the stored hot water continues to supply heat—eliminating heating interruptions and ensuring consistent comfort.


Automatic Venting & System Stabilization

Air accumulation in heat pump systems can disrupt circulation and reduce efficiency. The buffer tank’s automatic venting function removes air from the system, maintaining smooth water flow and stable operation. Its stabilization capability also eliminates temperature fluctuations, ensuring hot water supply remains consistent even during peak usage times.


Technical Specifications



Parameter

Details

Model

30L

Brand

Solaraven

Code

8419901000

Capacity

30 Liters

Application

Air source heat pump systems (residential & small commercial)

Key Functions

Storage, buffering, automatic venting, stabilization, cleaning

Pressure Resistance

Superior (adapts to standard heat pump system pressure)

In-Stock Quantity

10 units



Applicable Scenarios


Residential Heat Pump Systems

Perfect for homes equipped with air source heat pumps, especially those with small system capacity. It solves the problem of frequent main unit start-ups caused by variable household hot water demands, ensuring stable heating for bathing, heating, and daily use.


Small Commercial Projects

Suitable for small offices, shops, apartment buildings, and guesthouses. These settings require reliable heating with minimal maintenance. The buffer tank reduces main unit downtime and repair costs, supporting continuous operation under moderate loads.


Variable Demand Environments

Regions with fluctuating temperatures or inconsistent heating needs (e.g., seasonal usage changes) benefit from the tank’s load-balancing capability. It ensures the heat pump operates efficiently regardless of demand spikes or drops. 

In cold regions where heat pumps frequently enter defrosting mode, the buffer tank maintains hot water supply during unit pauses, eliminating heating interruptions and improving user experience.


Product Advantages


Extended Equipment Lifespan: By reducing frequent start-ups and high-load operation, the buffer tank extends the heat pump main unit’s service life by 25-40%, lowering replacement costs.

Energy Savings: Optimized system operation reduces energy consumption by up to 20%, as the main unit operates only when necessary and avoids inefficient high-load cycles.

Stable Heating Supply: Constant temperature storage and pressure balance ensure uninterrupted hot water, even during defrosting or peak usage—enhancing user comfort.

Reduced Maintenance: Prevents pressure-related failures, pipe leaks, and main unit malfunctions, minimizing repair frequency and downtime.

All-Round Functionality: Integrates five key benefits in one unit (storage, buffering, venting, stabilization, cleaning), eliminating the need for additional system components and saving upfront costs.


Call to Action


Upgrade your heat pump system’s efficiency and reliability with the Solaraven Heat Pump Hot Water Buffer Tank! With 10 units in stock, now is the time to protect your investment, reduce energy bills, and enjoy consistent heating. Whether you’re a homeowner, installer, or business owner, our buffer tank is engineered to meet your needs. Inquire today for detailed technical data or personalized recommendations, and take the first step toward a more efficient heating system. Click Add to Basket to secure your order—our team provides fast delivery and professional support to ensure seamless integration into your heat pump setup!


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