AVQM Pressure Independent Control Valve with Integrated Flow Limiter

Brand: Danfoss

AVQM is a self-acting flow controller with integrated control valve developed for the use in district heating / cooling systems. The controller prevents flow to exceed set max flow. 

In a combination with electrical actuators AMV(E) and ECL electronic controllers, the flow and temperature can be controlled to achieve highest energy savings. 

AVQM has a control valve with adjustable flow limiter, connection neck for electrical actuator and a pressure actuator with one control diaphragm.

Specifications

Brand

Actuator Size

  • 8.37 in² (54 cm²)

Applications

  • Used in District Heating Systems

BSP Connection

  • G 1” A
  • G 1-1/4” A
  • G 1-3/4” A
  • G 2” A
  • G 2-1/2” A
  • G 3/4” A

Cone Material

  • Dezincing Free Brass CuZn36Pb2As

Diaphragm Material

  • EPDM

Differential Pressure

  • Actuator: psi: 2.90 (kPa: 20, bar: 0.2)
  • Maximum

Enclosure, Body Material

  • Lower Housing of Actuator: Dezincing Free Brass CuZn36Pb2As
  • Upper Housing of Actuator: 304L Stainless Steel
  • Valve: Ductile Iron EN-GJS-400-18-LT
  • Valve: Red Bronze CuSn5ZnPb

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - PN 25

Flange Size - 1-1/4” (DN 32)

  • 1-1/4” (DN 32) - PN 25

Flange Size - 2” (DN 50)

  • 2” (DN 50) - PN 25

Flow Rate

  • 0.01 to 8.83 scfm (0.015 to 15 m³/hour)

Materials of Construction

  • Copper Tube Ø 6 x 1 mm
  • Valve Insert: Piston

Media

  • Circulation Water, Glycolic Water up to 30 %, pH: 7 to 10

Nominal Pressure

  • psi: 362.6 (kPa: 2,500, bar: 25)

Process Temperature

  • According to EN 1092-2 & EN 1092-3: 2° to 150° C (35.6° to 302° F)

Seat / Seal Material

  • Sealing DP: EPDM
  • Valve Seat: 316Ti Stainless Steel

  • District heating / cooling systems
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