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SAVD Safety Pressure Reduction Controller

Brand: Danfoss

SAVD is a self-acting safety pressure reduction controller primarily for use in district heating systems. 

The controller is normally opened and closes on rising pressure. It is used for pressure reduction control and as a protection against excess pressure behind the valve. 

The controller has a control valve, an actuator with two control diaphragms and a spring(s) for pressure setting.

Specifications

Brand

Actuator Size

  • 8.37 In² (54 cm²)

Applications

  • Heating Systems

BSP Connection

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

Cone Material

  • Valve Cone: Dezincing Free Brass CuZn36Pb2As

Diaphragm Material

  • EPDM

Differential Pressure

  • Actuator: psi: 14.5 to 159.5 (kPa: 100 to 1,100, bar: 1 to 11)
  • Maximum

Enclosure, Body Material

  • Actuator Housing: 304 Stainless Steel, 1.4301
  • Actuator Housing: Dezincing Free Brass CuZn36Pb2As
  • Valve: Ductile Iron
  • Valve: Red Bronze CuSn5ZnPb (Rg5)

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 - 1” (DN 25)

  • 1” (DN 25) - PN 25

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 25) - PN 25

Flange Size - 2” (DN 50)

  • 2” (DN 50) - PN 25

Flange Size - 3/4” (DN 20)

  • 3/4” (DN 20) - PN 25

Flow Rate

  • 4 to 25 m³/hour (Kvs)

Materials of Construction

  • Impulse Tube: Copper Tube Ø 6 x 1 mm

Media

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

Mounting Position

  • Any Position for 100° C (212° F)
  • Horizontal

Nominal Pressure

  • psi: 362.6 (kPa: 2,500, bar: 25)

Process Temperature

  • 2° to 150° C (35.6° to 302° F)

Seat / Seal Material

  • Sealing: EPDM
  • Valve Seat: 316Ti Stainless Steel, 1.4542

Welded Connection

  • DN 15 Weld End
  • DN 20 Weld End
  • DN 25 Weld End
  • DN 32 Weld End
  • DN 40 Weld End
  • DN 50 Weld End

  • District heating systems

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