As demand for reliable commercial solar water heating systems continues to rise, selecting a high-pressure solar water tank with durable materials and efficient heat exchange is critical.
RIWATT high-pressure solar water tanks (1000L, 1500L, 2000L, and 3000L) are engineered for large-scale hot water solar heat applications, offering long service life, high thermal efficiency, and stable pressurized performance.

Designed for High-Pressure Solar Water Heating Systems

RIWATT solar water tanks are built for closed-loop, pressurized solar water heating systems, making them ideal for:

● Hotels & resorts
● Hospitals & healthcare facilities
● Schools & dormitories
● Industrial hot water systems
● Centralized residential solar water heating projects
● Each tank is structurally reinforced to handle continuous operating pressure while maintaining thermal stability.

3000L Solar Tank Specification

3000L high Pressure Solar Water Tank Inner Tank Construction

The heart of any high-pressure solar tank is its inner chest. RIWATT uses only BAOSTEEL premium stainless steel:

Material Options:

SUS 304-2B Stainless Steel
SUS 316L Stainless Steel (recommended for hard water or coastal regions)

Advantages:

● Excellent corrosion resistance
● Hygienic water storage
● Long service life under pressurized conditions
● Smooth surface reduces scale buildup

High-Density Polyurethane Insulation

All RIWATT tanks feature high-density polyurethane foamed insulation, with adjustable thickness from 50mm to 100mm.

Benefits:

● Minimal heat loss during night or low-sun periods
● Improved hot water retention
● Higher overall solar water heating efficiency
● Reduced auxiliary energy consumption
● This insulation design ensures stable hot water solar heat storage, even in cold climates.

3000L high Pressure Solar Water Tank Outer Tank Material by Capacity

To ensure structural strength and weather resistance, RIWATT optimizes the outer shell material according to tank size:

Material: SUS 304-2B Stainless Steel
Thickness: 1.0mm
Enhanced strength for large-capacity, high-pressure systems

3000L Water Tank In-Built Stainless Steel Heat Exchanger (Solar Coil)

Each RIWATT high-pressure solar water tank includes a factory-integrated heat exchanger coil, suitable for solar collectors, heat pumps, or boiler backup.

Advantages:

● Faster heat transfer
● No mixing of potable water
● Compatible with multiple heat sources
● Higher system safety and efficiency

3000L Water Tank Standard Ports & Safety Design

T/P (Exhaust) Port: 3/4″ female thread
Designed for temperature & pressure relief valves
Supports full compliance with high-pressure system safety standards

3000L Water Tank Optional Accessories

RIWATT offers a full set of optional accessories for system customization:

● Electric heating element (1.25” or 1.5”)
● Magnesium anode (enhanced anti-corrosion protection)
● T/P valve (3/4”)
● Check valve (3/4”)
● Tank feet / mounting supports

Why Choose Riwatt 3000L high Pressure Solar Water Tank?

● Designed specifically for commercial solar water heating
● Premium BAOSTEEL stainless steel inner tanks
● Thick PU insulation for maximum heat retention
● Integrated solar heat exchanger
● Compatible with evacuated tubes, flat plate collectors, and heat pumps
● Proven performance in global solar hot water projects

Conclusion

Riwatt 3000L high-pressure solar water tanks provide a dependable foundation for modern solar water heating systems, combining durability, efficiency, and flexible system integration.
For long-term hot water solar heat storage in commercial applications, Riwatt tanks deliver consistent performance you can trust.

FAQs

FAQ 1: What applications are suitable for a 3000L solar water tank?

A 3000L high-pressure solar water tank is ideal for commercial solar water heating systems such as hotels, hospitals, schools, factories, and centralized residential projects requiring large hot water capacity.

FAQ 2: Can the 3000L solar water tank work with evacuated tube collectors?

Yes. The 3000L high-pressure solar water tank is fully compatible with evacuated tube solar collectors, flat plate collectors, and auxiliary heat sources.

FAQ 3: Can the 3000L solar water tank be installed outdoors?

Yes. The tank’s outer shell is made of durable stainless steel and high-quality coating, making it suitable for outdoor installation with protection against weather and corrosion.