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AVPL Differential Pressure Controller
Brand: DanfossAVPL is a self-acting differential pressure controller primarily for use in district heating systems. The controller closes on rising differential pressure.
The controller has a control valve and an actuator with one control diaphragm.
It can be used on primary side of house substations for smaller systems such as one and two-family houses.
The controller could be used to control the differential pressure across radiator systems and similar systems to keep a constant differential pressure even with a variable system resistance kva and/or supply pressure Δp₀.
Specifications
Brand
Applications
- Used in District Heating Systems
BSP Connection
- G 3/4” A, External Thread According to ISO 228/1
Cone Material
- Stainless Steel
Connection Style
- External Thread
Diaphragm Material
- EPDM
Differential Pressure
- psi: 65.27 (kPa: 450, bar: 4.5) - Max.
Enclosure, Body Material
- Dezincing Free Brass CuZn36Pb2As - Valve Body
Flow Rate
- 0.59 scfm (1 m³/hour)
- 0.94 scfm (1.6 m³/hour)
Materials of Construction
- Copper Tube, Ø 3 x 1 mm - Impulse Tube
- Stainless Steel Tube, Ø 0.8 x 0.2 x 800 mm - Impulse Tube
Measuring Range
- Medium PH: 7 to 10
Media
- Circulation Water
- Glycolic Water up to 30 %
Mounting Position
- Any Orientation
Nominal Pressure
- psi: 232.1 (kPa: 1,600, bar: 16)
O-Ring Material
- EPDM
Process Temperature
- 2° to 120° C (35° to 248° F)
Seat / Seal Material
- Seat: Stainless Steel
Setting Range
- psi: 0.72 to 3.62 (kPa: 5 to 25, bar: 0.05 to 0.25)
Spindle Material
- Brass CuZN39Pb3
Spring Material
- Stainless Steel
- District Heating Systems