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24L
Solaraven
8419901000
The replaceable bladder expansion tank is a critical component for split pressurized solar water heating systems, designed to buffer pressure fluctuations, absorb water hammer, and extend the lifespan of pumps and valves. Manufactured by Solaraven, this tank features a unique replaceable bladder design and flange connection, ensuring durability, easy maintenance, and leak-free operation. Suitable for thermal systems, water supply systems, and solar heating setups, the expansion tank operates in a wide temperature and pressure range, making it a versatile and reliable choice for residential and commercial applications.

The tank’s integral bladder is fully replaceable, simplifying maintenance and reducing long-term replacement costs. Unlike membrane expansion tanks, the bladder isolates water from the outer shell, eliminating rust and corrosion.
Equipped with a robust flange connection that withstands high torque, preventing breakage during installation and ensuring a secure, leak-free seal for years of use.
Supports working pressures of 10bar or 16bar and a temperature range of -10℃ to 99℃, adapting to diverse system requirements and environmental conditions.
Acts as a closed-loop system to absorb volume increases from temperature changes (in thermal systems) and water hammer from valve/pump operation (in water supply systems). It also provides small amounts of nighttime water replenishment, reducing pump load and energy consumption.
Parameter | Details |
Model | 24L (available in 5L, 8L, 12L, 18L, 50L, 100L, 200L, 300L, 500L, 1000L) |
Brand | Solaraven |
Product Code | 8419901000 |
Working Pressure | 10bar / 16bar (optional) |
Working Temperature | -10℃ ~ 99℃ |
Bladder Type | Replaceable integral bladder |
Connection Type | Flange connection |
Optional Accessory | Pressure gauge |
Application | Split pressurized solar water heating systems, thermal systems, water supply systems |
Ideal for residential and commercial solar water heating setups, the tank absorbs thermal expansion of water, maintaining stable system pressure and protecting components like solar collectors and pumps.
Used in industrial or residential heating systems to absorb volume increases of working media caused by temperature changes, preventing overpressure and system damage.
Buffers water hammer from sudden valve/pump openings/closing and provides nighttime water replenishment, reducing pump idle time, lowering electricity consumption, and extending pump lifespan.
The bladder isolates water from the tank’s outer shell, eliminating rust problems common in welded tanks and ensuring long-term structural integrity.
The replaceable bladder allows for quick and cost-effective repairs—no need to replace the entire tank when the bladder wears out.
Flange connection withstands high torque and prevents installation breakage, while the closed-loop design keeps the system isolated from the external environment, avoiding leaks.
By reducing pump load and absorbing water hammer, the tank lowers electricity consumption and extends the lifespan of system components, reducing maintenance and replacement costs.
Ensure the reliability and efficiency of your solar water heating or water supply system with the Solaraven replaceable bladder expansion tank—available in 11 capacity options and in stock now! Whether for residential or commercial use, this tank delivers durable, low-maintenance performance. Contact our team to select the right capacity, inquire about technical details, or add the product to your basket. Invest in a high-quality pressure buffer that protects your system and saves you money—order today!
The replaceable bladder expansion tank is a critical component for split pressurized solar water heating systems, designed to buffer pressure fluctuations, absorb water hammer, and extend the lifespan of pumps and valves. Manufactured by Solaraven, this tank features a unique replaceable bladder design and flange connection, ensuring durability, easy maintenance, and leak-free operation. Suitable for thermal systems, water supply systems, and solar heating setups, the expansion tank operates in a wide temperature and pressure range, making it a versatile and reliable choice for residential and commercial applications.

The tank’s integral bladder is fully replaceable, simplifying maintenance and reducing long-term replacement costs. Unlike membrane expansion tanks, the bladder isolates water from the outer shell, eliminating rust and corrosion.
Equipped with a robust flange connection that withstands high torque, preventing breakage during installation and ensuring a secure, leak-free seal for years of use.
Supports working pressures of 10bar or 16bar and a temperature range of -10℃ to 99℃, adapting to diverse system requirements and environmental conditions.
Acts as a closed-loop system to absorb volume increases from temperature changes (in thermal systems) and water hammer from valve/pump operation (in water supply systems). It also provides small amounts of nighttime water replenishment, reducing pump load and energy consumption.
Parameter | Details |
Model | 24L (available in 5L, 8L, 12L, 18L, 50L, 100L, 200L, 300L, 500L, 1000L) |
Brand | Solaraven |
Product Code | 8419901000 |
Working Pressure | 10bar / 16bar (optional) |
Working Temperature | -10℃ ~ 99℃ |
Bladder Type | Replaceable integral bladder |
Connection Type | Flange connection |
Optional Accessory | Pressure gauge |
Application | Split pressurized solar water heating systems, thermal systems, water supply systems |
Ideal for residential and commercial solar water heating setups, the tank absorbs thermal expansion of water, maintaining stable system pressure and protecting components like solar collectors and pumps.
Used in industrial or residential heating systems to absorb volume increases of working media caused by temperature changes, preventing overpressure and system damage.
Buffers water hammer from sudden valve/pump openings/closing and provides nighttime water replenishment, reducing pump idle time, lowering electricity consumption, and extending pump lifespan.
The bladder isolates water from the tank’s outer shell, eliminating rust problems common in welded tanks and ensuring long-term structural integrity.
The replaceable bladder allows for quick and cost-effective repairs—no need to replace the entire tank when the bladder wears out.
Flange connection withstands high torque and prevents installation breakage, while the closed-loop design keeps the system isolated from the external environment, avoiding leaks.
By reducing pump load and absorbing water hammer, the tank lowers electricity consumption and extends the lifespan of system components, reducing maintenance and replacement costs.
Ensure the reliability and efficiency of your solar water heating or water supply system with the Solaraven replaceable bladder expansion tank—available in 11 capacity options and in stock now! Whether for residential or commercial use, this tank delivers durable, low-maintenance performance. Contact our team to select the right capacity, inquire about technical details, or add the product to your basket. Invest in a high-quality pressure buffer that protects your system and saves you money—order today!