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AB-QM Balancing & Control Valve
Brand: Danfoss
The precise flow control performance of the AB‑QM with a Danfoss actuator provides increased comfort and superior Total Cost of Ownership because of savings made on:
- Efficient energy transfer and minimal pumping costs since there are no overflows at partial loads because of the exact pressure independent flow limitation
- Smaller pump investments and lower energy consumption as the pump head needed is lower than in the traditional setup. With the built in test plugs it is easy to troubleshoot and find the optimal setpoint for the pump
- Reduced movements of the actuator since the built-in differential pressure controller ensure the pressure fluctuations do not influence the room temperature
- Achieving a stable temperature in a room leading to a lower average temperature at the same comfort level
- Minimal flow complains, as the valve performs as designed
- Minimal blockage complains, as the membrane design makes AB‑QM less susceptible to blockage than a cartridge type constriction
- Trouble-free segmentation of the building project. When sections of a project are finished they can normally not be handed over to the customer with a fully functional HVac installation. However the AB‑QM with a Danfoss actuator will automatically control the flow, even when other parts of the installation are still unfinished. It’s not needed to adjust the AB‑QM after finalisation of the project
- Commissioning costs, the costs are close to zero because of a convenient setting procedure without the need for flow charts, calculations or measuring equipment. The AB‑QM valves can be set to a precise design value even when the system is up and running
- Halved mounting costs as the AB‑QM valve covers two functions, Balancing and Control
Specifications
Brand
Applications
- Constant Flow Systems
- Variable Flow Systems
Approvals & Certifications
- ISO 228/1 Class A
BSP Connection
- G 1” A
- G 1/2” A
- G 1-1/2” A
- G 1-1/4” A
- G 2” A
- G 2-1/2” A
- G 3/4” A
Cone Material
- 303 Stainless Steel
- 316 Stainless Steel
- 420 Stainless Steel
- Cone (Cv & Pc): Brass (CuZn40Pb3-CW 614N)
Differential Pressure
- High: psi: 2.61 to 87.02 (kPa: 18 to 600, bar: 0.18 to 6)
- Nominal: psi: 2.32 to 87.02 (kPa: 16 to 600, bar: 0.16 to 6)
Electrical Connectors
- Actuator: M30 x 1.5
Enclosure, Body Material
- Valve Body: DZR Brass (CuZn36Pb2As - CW 602N)
- Valve Body: Grey Iron EN-GJL-250 (GG-25)
Flange Size - 10” (DN 250)
- 10” (DN 250) - PN 16
Flange Size - 2-1/2” (DN 65)
- 2-1/2” (DN 65) - PN 16
Flange Size - 2” (DN 50)
- 2” (DN 50) - PN 16
Flange Size - 3” (DN 80)
- 3” (DN 80) - PN 16
Flange Size - 4” (DN 100)
- 4” (DN 100) - PN 16
Flange Size - 5” (DN 125)
- 5” (DN 125) - PN 16
Flange Size - 6” (DN 150)
- 6” (DN 150) - PN 16
Flange Size - 8” (DN 200)
- 8” (DN 200) - PN 16
Flow Rate
- 150 to 370,000 L/hr
- 180 to 407,000 L/hr
Gasket Material
- Flat Gasket: Graphite
- Flat Gasket: NBR
- Flat Gasket: Non-Asbestos
Materials of Construction
- Membranes/Bellow: 316Ti Stainless Steel, 1.4542
- Plastic Parts: Polyamide (PA)
- Plastic Parts: POM
Media
- Water & Water Mixture for Closed Heating & Cooling Systems According to Plant Typical I for DIN EN 14868
Nominal Pressure
- psi: 232.1 (kPa: 1,600, bar: 16)
O-Ring Material
- Membranes/Bellow & O-Ring: EPDM
Process Temperature
- -10° to 120° C (14° to 248° F)
Screw Material
- Insert Parts & Outer Screws: Brass (CuZn39Pb3 - CW 614N)
- Insert Parts & Outer Screws: Stainless Steel (A2) 1.1181, 1.4310, 1.4401
Seat / Seal Material
- Seat (Cv): DZR Brass (CuZn36Pb2As - CW 602N)
- Seat (Pc & Cv): Stainless Steel 1.4027, 1.4305
- Seat (Pc): EPDM
Spring Material
- 301 Stainless Steel
- 316L Stainless Steel
- 631 Stainless Steel
Storage Temperature
- Storage & Transport Temperature: -40° to 70° C (-40° to 158° F)
