AVPL Differential Pressure Controller

Brand: Danfoss

AVPL 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

show more