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AVPB/AVPB-F Differential Pressure Controller
Brand: Danfoss
AVPB(-F) is a self-acting differential pressure controller with flow limitation primarily for use in district heating systems. The controller closes on rising differential pressure or when set maximum flow is exceeded.
The controller has a control valve with adjustable flow restrictor, an actuator with one control diaphragm and handle for differential pressure setting (fixed setting version is without handle).
Specifications
Brand
Actuator Size
- 6 In² (39 cm²)
BSP Connection
- G 1” A
- G 1-1/4” A
- G 1-3/4” A
- G 3/4” A
Cone Material
- Valve Cone: Dezincing Free Brass CuZn36Pb2As
Diaphragm Material
- EPDM
Differential Pressure
- Differential Pressure Setting Ranges at AVPB: psi: 0.72 to 23.21 (kPa: 5 to 160, bar: 0.05 to 1.6)
- Differential Pressure Setting Ranges at AVPB-F: psi: 2.9 to 7.2 (kPa: 20 to 50, bar: 0.2 to 0.5)
- Maximum
Enclosure, Body Material
- Actuator Housing: Zinc Chromatic Steel, DIN 1624, No. 1.0338
- Valve Body: Red Bronze CuSn5ZnPb (Rg5)
Flange Size - 1-1/4” (DN 32)
- 1-1/4” (DN 32) - PN 16
Flange Size - 1” (DN 25)
- 1” (DN 25) - PN 16
Flange Size - 1/2” (DN 15)
- 1/2” (DN 15) - PN 16
Flange Size - 3/4” (DN 20)
- 3/4” (DN 20) - PN 16
Flow Rate
- 0.035 to 4.29 scfm (0.06 to 7.3 m³/hour)
- 0.94 to 5.89 scfm (1.6 to 10 m³/hour)
Materials of Construction
- Impulse Tube: Copper Tube Ø 6 x 1 mm
Measuring Range
- Glycolic Water Up to 30 %
Media
- Glycolic Water Up to 30 %
- Circulation Water
Nominal Pressure
- Actuator: psi: 232.1 (kPa: 1,600, bar: 16)
- Valve: psi: 362.6 (kPa: 2,500, bar: 25)
Process Temperature
- 2° to 150° C (35.6° to 302° F)
Seat / Seal Material
- Seal: EPDM
- Valve Seat: 316Ti Stainless Steel
