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Danfoss Non-Return Valve, NVD 812

NVD 812 Non-Return Valve

Brand: Danfoss
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Danfoss Non-Return Valve, NVD 812
Features
  • Operates in any position
  • Easy to install and dismantle, space-saving
  • Minimum head loss
  • Does not generate hammering
  • Closing system: disc with parabolic edges with return spring; lateral guiding by 3 or 4 ribs (DN 15 to 100)
  • Closing system with back axial guiding and return spring(ND 125 to 200)
  • Metal/metal seal (machined trim)
  • Using these check valves on networks equipped with piston pumps or compressors is not recommended

1 - 12 of 12 Part Numbers
065B7530
065B7530
  • Size - 1/2" (DN 15)
065B7531
065B7531
  • Size - 3/4" (DN 20)
065B7532
065B7532
  • Size - 1" (DN 25)
065B7533
065B7533
  • Size - 1-1/4" (DN 32)
065B7534
065B7534
  • Size - 1-1/2" (DN 40)
065B7535
065B7535
  • Size - 2" (DN 50)
065B7536
065B7536
  • Size - 2-1/2" (DN 65)
065B7537
065B7537
  • Size - 3" (DN 80)
065B7538
065B7538
  • Size - 4" (DN 100)
065B7539
065B7539
  • Size - 5" (DN 125)
065B7540
065B7540
  • Size - 6" (DN 150)
065B7541
065B7541
  • Size - 8" (DN 200)
1 - 12 of 12 Part Numbers

View_Details

Specifications

Brand

Approvals & Certifications

  • CE Conformity Directive 97/23/CE
  • PED

Enclosure, Body Material

  • 304 Stainless Steel
  • 316L Stainless Steel

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - PN 40

Flange Size - 1-1/4” (DN 32)

  • 1-1/4” (DN 32) - PN 40

Flange Size - 1” (DN 25)

  • 1” (DN 25) - PN 40

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 15) - PN 40

Flange Size - 2-1/2” (DN 65)

  • 2-1/2” (DN 65) - PN 40

Flange Size - 2” (DN 50)

  • 2” (DN 50) - PN 40

Flange Size - 3” (DN 80)

  • 3” (DN 80) - PN 40

Flange Size - 3/4” (DN 20)

  • 3/4” (DN 20) - PN 40

Flange Size - 4” (DN 100)

  • 4” (DN 100) - PN 40

Flange Size - 5” (DN 125)

  • 5” (DN 125) - PN 40

Flange Size - 6” (DN 150)

  • 6” (DN 150) - PN 40

Flange Size - 8” (DN 200)

  • 8” (DN 200) - PN 40

Flow Rate

  • 4.24 to 546 m³/hour (Kvs)

Materials of Construction

  • 302 Stainless Steel - Clips
  • 304 Stainless Steel - Closing System, Stop/Guide
  • 304L Stainless Steel - Stop/Guide, Centering Collar
  • 316L Stainless Steel - Stop/Guide, Closing System
  • Copper - Discharge Anti-Static Braid

Media

  • Glycol Solution - Drinking Water or Chilled Glycolic Water up to 50 %
  • Water - Circulation Water

Process Temperature

  • 10° to 350° C (50° to 662° F)

Spring Material

  • 302 Stainless Steel

Documentation

Data Sheets

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