Danfoss AB-PM DN 50 Информационный лист - Страница 12

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Data sheet

Tender text

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products

already on order provided that such alterations can be made without subsequential changes being necessary

12 | VD.HR.D1.02

AB-PM DN 40-100

AB-PM DN 40-100 is a combined differential pressure controller for dynamic hydronic balance.

• The valve should be able to ensure hydronic balance for each zone with one or more terminal units.

• Valve shall have flexible functionality as either DPCV or PIBCV.

• The valve can be connected to either flow or return pipe via impulse tube

• With impulse tube connected to flow, the valve should keep differential pressure across the

branch by membrane driven controller.

• With impulse tube connected to the return, the valve should control the flow on every terminal unit

• Valve should have shut-off function.

• Valve should have possibility to mount actuator without effecting presetting.

• Valve should have variable setting. Setting value should allow to set a combination of needed

differential pressure and flow for zone.

• Setting should be lockable to prevent unauthorized change.

• Control 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 with hand or a tool. The Dp controller should

have soft sealing to ensure suficient closing in case of zero flow

• Valve should be delivered with min. 2.5 m 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:

a) Pressure class: PN16

b) Max. pressure drop across AB-PM: 4 bar

c) Temperature range: –10 ... 120 °C

d) Connections size: DN 40-100

e) Connection type: External tread ISO 228/1 (DN 40, DN50 ), Flange EN1092-2 (DN 65-100)

f) Installation: in return pipe with connection via impulse tube to flow or return pipe

g) Setting range: Flow: 40-100%, Δp setting : 0-20 turns (DN40, DN50), 0-40 turns (DN65-DN100)

h) Nom. flow at factory setting (Δpr 25 kPa): 5000l/h (DN40), 6500 l/h (DN50), 16800 l/h (DN65),

19600 (DN80), 21000 (DN100)

i) Minimum differential pressure across valve and zone at factory setting 45 kPa (DN40, DN50),

60 kPa (DN65-100)

eady agreed.