Multifunctional automatic valve AB-QM with measuring connections, size DN40 003Z0770

The AB-QM valve is a versatile flow regulator that combines automation and flow limitation functions. Its diaphragm and GG 25 (GJL-250) cast iron construction ensures reliability and durability in demanding operating conditions. Designed for central heating and chilled water installations, it performs well in both variable and constant flow systems.

The AB-QM valve stands out with its linear regulation characteristic, meaning it maintains stable operation regardless of pressure changes in the installation. This is crucial for precise flow control and maintaining thermal comfort in rooms. The ability to set the maximum flow allows the valve to be adapted to the performance of a specific end device – a pump or radiator – protecting it from overload.

• Versatility: compatible with ON/OFF and modulating actuators, providing flexibility in control system selection.
• Precision: linear characteristic ensures stable flow regardless of pressure changes.
• Flow limitation: the ability to set the maximum flow protects end devices from damage.
• Durability: made of GG 25 (GJL-250) cast iron guarantees long service life.
• Compatibility: suitable for operation with glycol, expanding the range of applications.
• Built-in measuring ports: facilitate monitoring of installation parameters and optimization of its operation.

The AB-QM valve with a nominal diameter of DN40 and a flanged connection (outer pipe diameter 48.3 mm) is designed to operate at a maximum pressure difference of 600 kPa and a flow rate of 1.5 to 7.5 m³/h. The minimum pressure differential is 30 kPa, and the valve stroke length is 10 mm. Its height is 344 mm and the working length is 110 mm. The pressure class of the device is PN 16. This valve is a solid solution for installers looking for a reliable and precise flow regulator that will provide full control over thermal comfort in the building.