Flush valve for Hydroland SLIM, STANDARD and FIT concealed WC frames

Product detailed description

Concealed WC cistern systems are commonly used in modern bathrooms and commercial restrooms to maintain a clean and uncluttered appearance. These systems require precise internal components to ensure efficient operation and long-term reliability. A key element is the flush valve, which regulates the flow of water from the cistern to the WC bowl during each flush. This component must provide a consistent and controlled flow while maintaining a watertight seal when not in use. In installations where the flush valve is worn or damaged, water leakage and reduced flushing performance are common issues. Replacing the valve without dismantling the entire cistern or wall finish is possible through the service access behind the control panel.

The STEL.Z.SPL.SL model is specifically designed for the SLIM, STANDARD and FIT concealed cistern frames. It is not suitable for the SMART model, which requires a different valve type. The valve is installed at the bottom of the cistern and operates by lifting when the control panel is activated, allowing water to flow into the WC bowl. After the flush, the valve returns to its seated position to reseal the system. This mechanism ensures that the cistern remains fully sealed until the next flush cycle.

Technical parameters

Manufacturer	Hydroland
Manufacturer code	STEL.Z.SPŁ
Type	Flush valve
Warranty	2 years
Code	STEL.Z.SPL.SL
Brand	Hydroland

The technical parameters confirm that this is a replacement flush valve for concealed cistern systems. The model number STEL.Z.SPL.SL indicates compatibility with the SLIM, STANDARD and FIT frames. The exclusion of the SMART model is important for correct selection. These parameters are essential for verifying the correct part for the specific cistern system and ensuring proper sealing and flow characteristics.

Installation and connection

To replace the flush valve, access is gained through the service opening located behind the control panel. The valve is installed at the bottom of the cistern and must be seated correctly to ensure a watertight seal. No external connections are required for this internal component. During installation, it is important to ensure that the valve is fully seated and that the sealing surface is clean and undamaged. Common installation errors include incorrect seating or failure to clean the sealing area, both of which can lead to water leakage. The replacement process does not require removal of the cistern or wall finish, making it a cost-effective repair option.

Compatibility and accessories

This flush valve is compatible with the Hydroland SLIM, STANDARD and FIT concealed cistern frames. It is not suitable for the SMART model. No additional components are required for installation, as the valve is a standalone replacement part. The product is supplied as a single unit and does not require assembly. It is important to verify the cistern model before ordering to ensure correct compatibility.

Technical background for designers

The flush valve operates by lifting a sealing disc from its seat when the control panel is activated. This allows water to flow from the cistern into the WC bowl. After the flush, the disc returns to its seated position, sealing the system until the next activation. The materials used are selected for their durability and resistance to wear, ensuring long-term performance. The design allows for easy replacement without the need to dismantle the cistern or wall finish. The valve integrates with the internal hydraulics of the cistern system and is designed to maintain consistent flow and sealing performance. The service life is influenced by the frequency of use and the quality of the installation.

Service and operation

Regular inspection of the flush valve is recommended to ensure continued performance. Signs of wear include continuous water flow into the WC bowl, reduced flush strength or a constantly refilling cistern. These indicate that the valve is no longer sealing properly and should be replaced. No specific service intervals are provided, but replacement is advised when performance issues are observed. The valve can be replaced without the need for professional assistance, provided the correct model is selected and the installation is performed correctly.

Frequently asked questions

Can the STEL.Z.SPL.SL be used with the Hydroland SMART model?
No, this model is not compatible with the SMART cistern frame. A different flush valve is required for that system.

Is it necessary to remove the cistern to replace the valve?
No, the valve can be replaced through the service opening behind the control panel. There is no need to dismantle the cistern or wall finish.

How do I know if the flush valve needs to be replaced?
Signs of wear include continuous water flow into the WC bowl, a constantly refilling cistern or reduced flush strength. These indicate that the valve is no longer sealing properly.

What tools are required for installation?
Basic hand tools are sufficient for installation. No special tools are required, as the valve is a simple mechanical component that can be seated manually.

Documents for download

• Toilet accessories (PDF)