Manual balancing valve LENO MSV-O, size DN15, internal thread 1/2" 003Z4021

Manual balancing valve – precision and versatility in every system

The LENO MSV-O manual balancing valve is a reliable solution for precise flow regulation in heating, cooling and domestic hot water systems. Its compact design and functionality make it ideal for both professional installers and end-users who value efficiency and ease of use. The valve is designed for versatility – it can be installed anywhere in the system, even in areas with limited space.

Design and application

The LENO MSV-O valve combines balancing and shut-off functions thanks to the use of a ball shut-off valve. This solution ensures 100% system tightness and allows for easy blocking of the flow setting. The built-in Venturi nozzle in the valve body enables accurate flow measurement and regulation. Made of dezincification-resistant brass (DZR), it guarantees long-lasting and trouble-free operation even in harsh conditions.

The valve is used in:

• Balancing heating and cooling circuits
• Domestic hot water systems
• Installations with limited mounting space
• Where precise flow regulation is required

Advantages and benefits

• Easy installation: The compact design and removable knob make installation easy even in tight spaces. There is no need to install on a straight section of the pipeline – measurement accuracy is maintained regardless of the valve position.
• Shut-off function: The ball shut-off valve provides a complete seal and ease of operation. Closing the valve does not affect the flow setting, making it easier to restart the system.
• Setting lock: A simple locking mechanism prevents accidental changes to the flow settings, ensuring system stability. The ability to secure the knob against manipulation further increases safety.
• High-quality materials: DZR brass provides corrosion resistance and long-lasting reliability.
• Versatility: Two-way flow and a 360° rotating body (in other models from the LENO series) make it easy to adapt to different installation configurations.
• Efficiency: A Kvs value of 2.8 ensures optimal flow for installations with a nominal diameter of DN15.
• Wide temperature range: Continuous operation in a temperature range of 120°C allows the valve to be used in a variety of heating systems.