Ball zone valves series VS 221 ÷ SM 236

Motorized ball zone valves represent the ideal solution for zoned heating systems, allowing precise regulation of room temperature through a thermostat or programmable thermostat. These valves ensure zero leakage and minimal pressure losses, providing efficient and reliable operation over time. Perfect sealing is guaranteed by the ball tightly held between seals made of PTFE (TEFLON) filled with 15% graphite, ensuring excellent tightness even under heavy-duty operating conditions. Moreover, the specific design of the ball gives the valves a self-cleaning effect: during operation, the ball slides over the seals, keeping them constantly lubricated and significantly reducing maintenance requirements. The full bore passage of the valve eliminates flow deviations, resulting in negligible pressure drops and high energy efficiency. Motorized valves can be easily connected to three-contact thermostats or programmable thermostats, and can also control meters or heat meters, enabling a complete and automated management of the heating system. Manufactured in compliance with DIN 3537 and DIN 3539 standards, with DIN-DVGW approval.