Metso Neles V-Port Segment Valve, RA Series
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Neles RA Series V-Port Segment Valve

Brand: Valmet
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Metso's Neles V-port valve in the R-series is primarily intended as a control valve, but it can also be used for shut-off service.

The R-series V-port segment valve is a good general control valve for most pulp and paper process applications. 

The valve can be fitted with an aerodynamic noise- and liquid cavitation-reducing (for example, steam and gas applications) Q-Trim segment. 

A low capacity segment is available for the DN25 valve.

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Specifications

Brand

Applications

  • Pulp & Paper

Approvals & Certifications

  • CE

Bearing Material

  • AISI 329 Stainless Steel
  • Hastelloy C
  • PTFE
  • PVDF

Differential Pressure

  • Shut Off - psi: 507.6 to 725.2 (kPa: 3,500 to 5,000, bar: 35 to 50) - Max.

Enclosure Finish

  • Ceramic Coating

Enclosure, Body Material

  • 316 Stainless Steel - ASTM A351 CF8M, 1.4408
  • Hastelloy C (CW-6M)
  • Stainless Steel [CK3MCuN (SMO)]

Flange Material

  • Blind: 316 Stainless Steel - ASTM A351 CF8M, 1.4408

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 300# ASME
  • 1-1/2” (DN 40) - PN 40

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 300# ASME
  • 1” (DN 25) - PN 40

Flange Size - 10” (DN 250)

  • 10” (DN 250) - 300# ASME
  • 10” (DN 250) - PN 40

Flange Size - 2-1/2” (DN 65)

  • 2-1/2” (DN 65) - 300# ASME
  • 2-1/2” (DN 65) - PN 40

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 300# ASME
  • 2” (DN 50) - PN 40

Flange Size - 3” (DN 80)

  • 3” (DN 80) - 300# ASME
  • 3” (DN 80) - PN 40

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 300# ASME
  • 4” (DN 100) - PN 40

Flange Size - 6” (DN 150)

  • 6” (DN 150) - 300# ASME
  • 6” (DN 150) - PN 40

Flange Size - 8” (DN 200)

  • 8” (DN 200) - 300# ASME
  • 8” (DN 200) - PN 40

Flow Rate

  • 21 to 3,210 Cv, Max.

Materials of Construction

  • Gland Follower: 316 Stainless Steel - ASTM A351 CF8M, 1.4408
  • Net, Segment: Stainless Steel (ASTM A351 Grade CK3MCuN)
  • Pin: PTFE
  • Pin: PVDF
  • Sealing Plate: Graphite
  • Segment, Pin: Hastelloy C (CW-6M)
  • V-Port Segment, Key, Cylindrical Pin: AISI 329 Stainless Steel (SIS 2324)
  • V-Port Segment: Chromium

Media

  • Acidic Liquids
  • Water

Name Plate, Tag Material

  • AISI 304 Stainless Steel

NPT Connection

  • 1/2” NPT
  • 1/4” NPT
  • 3/8” NPT

Nut & Bolt Material

  • Hexagon Bolt: Stainless Steel (ISO 3506 A2-70)

Packing Material

  • PTFE

Port

  • Reduced

Pressure Type

  • Gauge

Proof Pressure

  • 1.5 Times, Max.
  • Test - psig: 50.76 (kPa: 350, bar: 3.5)

Ring Material

  • Back, Retainer, Sheet, Filling (Low Cv 1” (DN 25): AISI 316 Stainless Steel

Screw Material

  • Countersunk: Stainless Steel (ISO 3506 A2-70)

Seat / Seal Material

  • Back Seal, Seat: Stainless Steel
  • Seat, Back Seal, Lip Seal: PTFE
  • Seat: Cobalt-based Alloy
  • Seat: Titanium
  • Viton GF
  • XTREME

Shaft Material

  • Drive: AISI 329 Duplex Stainless Steel (SIS 2324)
  • Hastelloy C
  • PTFE
  • PVDF

Spring Material

  • Alloy (Elgiloy)
  • Lock: Inconel 625
  • Titanium
  • Wave: 316 Stainless Steel

Supply Pressure

  • Actuator - psi: 72.5 (kPa: 500, bar: 5)

Temperature Range

  • -40° to 260° C (-40° to 500° F)

  • Pulp & Paper

Documentation

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