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NVD 462 Non-Return Valve
Brand: Danfoss
Specifications
- Operates in any position
- Silent, reliable sealing, compact
- Exceptional robustness
- Notch provided for cable to submerged pumps up to DN 100
- Closing system: long back axial guiding
- Sealing guaranteed by O-ring
- Return spring
- Body with integrated one-arm guide
Specifications
Brand
Approvals & Certifications
- CE
- PED 97/23/EC
Enclosure, Body Material
- Cast Iron (ASTMA4835B) - Casing
Flange Size - 2-1/2" (DN65)
- 2-1/2" (DN65) - PN 10
- 2-1/2" (DN65) - PN 16
Flange Size - 2" (DN50)
- 2" (DN50) - PN 10
- 2" (DN50) - PN 16
Flange Size - 3" (DN80)
- 3" (DN80) - PN 10
- 3" (DN80) - PN 16
Flange Size - 4" (DN100)
- 4" (DN100) - PN 10
- 4" (DN100) - PN 16
Flange Size - 5" (DN125)
- 5" (DN125) - PN 10
- 5" (DN125) - PN 16
Flange Size - 6" (DN150)
- 6" (DN150) - PN 10
- 6" (DN150) - PN 16
Flange Size - 8" (DN200)
- 8" (DN200) - PN 10
Flow Rate
- 69 to 1,031 Kvs (m³/hour)
Materials of Construction
- Brass - Closing System
- Bronze - Steam
Media
- Glycol Solution - Drinking Water or Chilled Glycolic Water up to 50%
- Water - Circulation Water
O-Ring Material
- EPDM
Process Temperature
- 10° to 100° C (50° to 212° F)
Ring Material
- Bronze
Spring Material
- 420 Stainless Steel