HP-80 is designed specifically to absorb expanded fluid in closed-loop residential or commercial hydronic heating and cooling systems, effectively regulating pressure buildup and ensuring system safety.
HP-80 has a total volume of 80 liters (20 gallons). The tank is designed for a maximum operating pressure of 10 bar (150 psi) and a maximum operating temperature of 130 °C (266 °F). It is factory pre-charged to 1 bar (15 psi) for stable system performance and is fully compatible with propylene glycol mixture concentrations of up to 50%.
With a diameter of 43.2 cm (17.0 inches) and a height of 70.0 cm (27.6 inches), this stand-model tank comes with a heavy-duty base, providing massive expansion absorption for demanding commercial and large residential climate-control systems.
Product Overview
The HP-80 is an 80-liter (20 gallon) hydronic expansion tank engineered specifically for closed-loop hydronic heating and cooling systems. As the fluid in your climate-control system changes temperature, it expands and contracts; the HP-80 safely absorbs this expanded fluid volume, effectively controlling the excessive pressure generated inside the system and preventing potential hazards.
Constructed from robust sheet steel tanks compliant with IAPMO and EN standards, the HP-80 is welded according to strict ASME & EN procedures by certified welders, ensuring long-lasting durability and safety. Utilizing a specialized, high-temperature-resistant EPDM rubber diaphragm, it ensures exceptionally reliable operation. To guarantee supreme robustness, every single Hydro-Plus model undergoes rigorous hydraulic testing at a pressure 1.5 times higher than the design pressure.
Manufactured with premium materials, Aquasky HYDRO-PLUS tanks are the ultimate safety choice for your hydronic heating system, delivering dependable performance and peace of mind.
Certification
Specifications and Technical Data
| Parameter | Value |
| Model Number | HP-80 |
| Total Tank Volume | 80 liters / 20 gallons |
| Diameter | 43.2 cm / 17.0 inches |
| Height | 70.0 cm / 27.6 inches |
| Net Weight (NW) | 12.7 kg / 28.0 lbs |
| Gross Weight (GW) | 14.6 kg / 32.2 lbs |
| Shipping Volume | 5.00 CUF |
| Max. Operating Temperature | 130°C / 266°F |
| Factory Pre-charge | 1 bar | 15 psi |
| Max. Operating Pressure | 10 bar | 150 psi |
| Connection | 1" Cacbon Steel / Stainless Steel |
| Diaphragm Material | High-temperature resistance EPDM Rubber |
| Tank Body Shell | Cold Rolled Carbon Steel |
| External Coating | Gray Paint |
| Air Nozzle Protection | Brass cap with internal O-ring |
| Pre-charge Gas | 100% Nitrogen |
Key Features & Design Advantages
How the HYDRO-PLUS Pressure Tank Works
In closed hydronic heating and cooling systems, fluid volume changes drastically as the temperature rises and falls. The HP-80 safely absorbs this expanded fluid using a sealed, compressible air cushion space. It stores the fluid securely against the high-temperature EPDM rubber diaphragm, while the air chamber compresses to accommodate the volume change. This mechanism seamlessly controls excessive pressure, protects valves and piping, and maintains safe system parameters without venting fluid.
Key benefits
Typical Applications
Frequently Asked Question (FAQ)
A: Yes, the HP-80 is an excellent choice for absorbing expanded fluid in both residential and commercial hydronic heating systems, offering a robust 20-gallon capacity.
A: Yes, every tank in the series is rated to handle a maximum operating temperature of 130°C (266°F).
A : The HP-80 has a net weight of 28.0 lbs before it is filled with water.
Downloads & Certification Links