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Neles RA Series V-Port Segment Valve
Brand: ValmetMetso'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.
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
