Concealed Flush Valve CERSANIT Astra K99-0150 for In-Wall Installation

The Concealed Flush Valve CERSANIT Astra K99-0150 for in-wall installation is a built-in toilet cistern valve designed to be mounted inside a wall or a concealed frame. It controls water flow for flushing while remaining hidden from view, preserving a clean bathroom appearance. The unit is suitable for integration with wall-hung and back-to-wall toilets where the valve and cistern components are not visible after installation.

Advantages

The flush valve offers discreet operation with a compact form factor that fits within standard wall cavities and installation frames. Constructed to provide consistent water control, it supports reliable flushing performance and helps reduce visible plumbing elements in the bathroom. The design facilitates professional or competent DIY installation and allows for access to service points via the wall-mounted actuator plate.

Suitable for

• Residential bathrooms with concealed cistern installations
• Commercial washrooms requiring discreet plumbing
• Wall-hung and back-to-wall toilet systems
• Renovation projects where visible plumbing should be minimized

Key specifications

• Type: Concealed flush valve for in-wall installation
• Compatibility: Designed for integration with concealed cisterns and installation frames
• Function: Controls water flow for single or dual-flush actuators depending on connected actuator plate
• Installation: Suitable for mounting within wall cavity or installation frame behind actuator plate
• Maintenance access: Serviceable via wall-mounted actuator plate removal

How to use

Install the flush valve into the designated in-wall installation frame or wall cavity according to the installation instructions provided by the manufacturer. Connect the inlet water supply and link the valve to the concealed cistern and actuator mechanism. After installation, fit the actuator plate to the wall opening and test the flushing operation, adjusting water flow or actuator linkage as required to achieve the desired flush volume and sealing. Where necessary, perform routine checks for leaks and confirm that moving parts operate smoothly.

Usage recommendations

For reliable long-term performance, have the flush valve installed or inspected by a qualified plumber familiar with concealed cistern systems. Use actuator plates and replacement parts specified for the valve model to ensure correct fit and function. Periodically check connections for signs of wear or leakage and service the unit according to local building and plumbing standards.