Automatic Balancing Valve AB-PM

Branch should be balanced with a differential pressure controller for dynamic hydronic balance, with following characteristics:

• Valve should keep differential pressure across the branch by membrane driven controller.
• Valve should have shut-off function.
• Valve should have possibility to mount actuator.
• Valve should have variable setting. Setting value should allow to set a combination of needed Dp and max flow limitation.
• Setting should be lockable to prevent unauthorized change.
• Valve should have metal to metal sealing to ensure sufficient performance of differential pressure control at low flows.
• Shut-off service function should be possible to do by hand / without a tool.
• Valve should be delivered with impulse tube. Diameter of impulse tube should not be bigger than 1.2 mm.
• Valve should be delivered in reliable packaging for safe transport and handling.

Product characteristics:

• Pressure class: PN 16
• Temperature range: −10 … +120 °C.
• Connection size: DN10-DN32
• Connection type: External thread ISO 228/1
• Valve body material: DZR brass
• Installation: on flow pipe with connection via impulse tube to return pipe.

DN10-32:

• Dp setting range: 5-15 kPa
• Nom flow at 10 kPa: 110 l/h (DN10), 300 l/h (DN15), 600 l/h (DN20), 1200 l/h (DN25) and 2300 l/h (DN32)
• Minimum Dp across valve and loop 18 kPa to ensure proper control
• Max Dp at zero flow: 22 kPa
• Max Dp across the valve: 4 bar

DN10-32 HP:

• Dp setting range: 10-25 kPa
• Nom flow at 20 kPa: 110 l/h (DN10), 300 l/h (DN15), 600 l/h (DN20), 1200 l/h (DN25) and 2300 l/h (DN32)
• Minimum Dp across valve and loop 28 kPa to ensure proper control
• Max Dp at zero flow: 35 kPa
• Max Dp across the valve: 4 bar