Metso Neles Eccentric Disc Valve, Series LW & LG
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Neles Series LW & LG Eccentric Disc Valve

Brand: Metso
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Metso's Neles Neldisc is a metal seated high performance triple eccentric disc valve. 

It provides a long lasting tight shut-off with excellent flow characteristics and high capacity. 

The LW and LG series fulfill the requirements of ASME, EN and API 609(category B) standards. 

The LW and LG series are widely used in pulp and paper, chemical, petrochemical and refining industries. 

With nearly equal percentage characteristics and superior tightness, Neldisc triple eccentric disc valves operate both in control and shutoff applications.

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Specifications

Brand

Actuator Type

  • Lever Operated
  • Manual Gear Operator
  • Pneumatic
  • Spring Return

Applications

  • Chemical
  • Petrochemical
  • Pulp & Paper
  • Refineries

Approvals & Certifications

  • API 598
  • API 607
  • API 609 (Category B)
  • ISO 15848
  • Material Certificate EN 10204-3.1B

Approvals & Certifications

  • BS 6755
  • FCI 70.2 Class VI

Bearing Material

  • AISI 316 Stainless Steel
  • Cobalt Based Alloy
  • PTFE

Disc Material

  • AISI 317 Stainless Steel (CG8M)
  • F316 Stainless Steel - ASTM A 182 Grade F316, EN 10213 to 1.4408, EN 10088 to 1.4401

Enclosure, Body Details

  • Lug
  • Wafer

Enclosure, Body Material

  • 316 Stainless Steel (EN 10213 to 1.4408 / ASTM A 351 Grade CF8M)
  • Carbon Steel (EN 10213 to 1.0619 / ASTM A 216 Grade WCB)

Flange Material

  • Blind: 316 Stainless Steel (EN 10213 to 1.4408 / ASTM A 351 Grade CF8M)

Flange Size - 10" (DN250)

  • 10" (DN250) - 150# (ASME)
  • 10" (DN250) - 300# (ASME)
  • 10" (DN250) - JIS 10K
  • 10" (DN250) - JIS 16K
  • 10" (DN250) - JIS 20K
  • 10" (DN250) - JIS 30K
  • 10" (DN250) - PN 10
  • 10" (DN250) - PN 20 (ISO)
  • 10" (DN250) - PN 25
  • 10" (DN250) - PN 40
  • 10" (DN250) - PN 50 (ISO)

Flange Size - 12" (DN300)

  • 12" (DN300) - 150# (ASME)
  • 12" (DN300) - 300# (ASME)
  • 12" (DN300) - JIS 10K
  • 12" (DN300) - JIS 16K
  • 12" (DN300) - JIS 20K
  • 12" (DN300) - JIS 30K
  • 12" (DN300) - PN 10
  • 12" (DN300) - PN 20 (ISO)
  • 12" (DN300) - PN 25
  • 12" (DN300) - PN 40
  • 12" (DN300) - PN 50 (ISO)

Flange Size - 14" (DN350)

  • 14" (DN350) - 150# (ASME)
  • 14" (DN350) - 300# (ASME)
  • 14" (DN350) - JIS 10K
  • 14" (DN350) - JIS 16K
  • 14" (DN350) - JIS 20K
  • 14" (DN350) - JIS 30K
  • 14" (DN350) - PN 10
  • 14" (DN350) - PN 20 (ISO)
  • 14" (DN350) - PN 25
  • 14" (DN350) - PN 40
  • 14" (DN350) - PN 50 (ISO)

Flange Size - 16" (DN400)

  • 16" (DN400) - 150# (ASME)
  • 16" (DN400) - 300# (ASME)
  • 16" (DN400) - JIS 10K
  • 16" (DN400) - JIS 16K
  • 16" (DN400) - JIS 20K
  • 16" (DN400) - JIS 30K
  • 16" (DN400) - PN 10
  • 16" (DN400) - PN 20 (ISO)
  • 16" (DN400) - PN 25
  • 16" (DN400) - PN 40
  • 16" (DN400) - PN 50 (ISO)

Flange Size - 18" (DN450)

  • 18" (DN450) - 150# (ASME)
  • 18" (DN450) - 300# (ASME)
  • 18" (DN450) - JIS 10K
  • 18" (DN450) - JIS 16K
  • 18" (DN450) - JIS 20K
  • 18" (DN450) - JIS 30K
  • 18" (DN450) - PN 10
  • 18" (DN450) - PN 20 (ISO)
  • 18" (DN450) - PN 25
  • 18" (DN450) - PN 40
  • 18" (DN450) - PN 50 (ISO)

Flange Size - 20" (DN500)

  • 20" (DN500) - 150# (ASME)
  • 20" (DN500) - 300# (ASME)
  • 20" (DN500) - JIS 10K
  • 20" (DN500) - JIS 16K
  • 20" (DN500) - JIS 20K
  • 20" (DN500) - JIS 30K
  • 20" (DN500) - PN 10
  • 20" (DN500) - PN 20 (ISO)
  • 20" (DN500) - PN 25
  • 20" (DN500) - PN 40
  • 20" (DN500) - PN 50 (ISO)

Flange Size - 24" (DN600)

  • 24" (DN600) - 150# (ASME)
  • 24" (DN600) - 300# (ASME)
  • 24" (DN600) - JIS 10K
  • 24" (DN600) - JIS 16K
  • 24" (DN600) - JIS 20K
  • 24" (DN600) - JIS 30K
  • 24" (DN600) - PN 10
  • 24" (DN600) - PN 20 (ISO)
  • 24" (DN600) - PN 25
  • 24" (DN600) - PN 40
  • 24" (DN600) - PN 50 (ISO)

Flange Size - 28" (DN700)

  • 28" (DN700) - 150# (ASME)
  • 28" (DN700) - 300# (ASME)
  • 28" (DN700) - JIS 10K
  • 28" (DN700) - JIS 16K
  • 28" (DN700) - JIS 20K
  • 28" (DN700) - JIS 30K
  • 28" (DN700) - PN 10
  • 28" (DN700) - PN 20 (ISO)
  • 28" (DN700) - PN 25
  • 28" (DN700) - PN 40
  • 28" (DN700) - PN 50 (ISO)

Flange Size - 3" (DN80)

  • 3" (DN80) - 300# (ASME)
  • 3" (DN80) - JIS 20K
  • 3" (DN80) - JIS 30K
  • 3" (DN80) - PN 40
  • 3" (DN80) - PN 50 (ISO)

Flange Size - 30" (DN750)

  • 30" (DN750) - 150# (ASME)
  • 30" (DN750) - 300# (ASME)
  • 30" (DN750) - JIS 10K
  • 30" (DN750) - JIS 16K
  • 30" (DN750) - JIS 20K
  • 30" (DN750) - JIS 30K
  • 30" (DN750) - PN 10
  • 30" (DN750) - PN 20 (ISO)
  • 30" (DN750) - PN 25
  • 30" (DN750) - PN 40
  • 30" (DN750) - PN 50 (ISO)

Flange Size - 32" (DN800)

  • 32" (DN800) - 150# (ASME)
  • 32" (DN800) - 300# (ASME)
  • 32" (DN800) - JIS 10K
  • 32" (DN800) - JIS 16K
  • 32" (DN800) - JIS 20K
  • 32" (DN800) - JIS 30K
  • 32" (DN800) - PN 10
  • 32" (DN800) - PN 20 (ISO)
  • 32" (DN800) - PN 25
  • 32" (DN800) - PN 40
  • 32" (DN800) - PN 50 (ISO)

Flange Size - 36" (DN900)

  • 36" (DN900) - 150# (ASME)
  • 36" (DN900) - 300# (ASME)
  • 36" (DN900) - JIS 10K
  • 36" (DN900) - JIS 16K
  • 36" (DN900) - JIS 20K
  • 36" (DN900) - JIS 30K
  • 36" (DN900) - PN 10
  • 36" (DN900) - PN 20 (ISO)
  • 36" (DN900) - PN 25
  • 36" (DN900) - PN 40
  • 36" (DN900) - PN 50 (ISO)

Flange Size - 4" (DN100)

  • 4" (DN100) - 300# (ASME)
  • 4" (DN100) - JIS 20K
  • 4" (DN100) - JIS 30K
  • 4" (DN100) - PN 40
  • 4" (DN100) - PN 50 (ISO)

Flange Size - 40" (DN1000)

  • 40" (DN1000) - 150# (ASME)
  • 40" (DN1000) - 300# (ASME)
  • 40" (DN1000) - JIS 10K
  • 40" (DN1000) - JIS 16K
  • 40" (DN1000) - JIS 20K
  • 40" (DN1000) - JIS 30K
  • 40" (DN1000) - PN 10
  • 40" (DN1000) - PN 20 (ISO)
  • 40" (DN1000) - PN 25
  • 40" (DN1000) - PN 40
  • 40" (DN1000) - PN 50 (ISO)

Flange Size - 5" (DN125)

  • 5" (DN125) - 300# (ASME)
  • 5" (DN125) - JIS 20K
  • 5" (DN125) - JIS 30K
  • 5" (DN125) - PN 40
  • 5" (DN125) - PN 50 (ISO)

Flange Size - 6" (DN150)

  • 6" (DN150) - 150# (ASME)
  • 6" (DN150) - 300# (ASME)
  • 6" (DN150) - JIS 10K
  • 6" (DN150) - JIS 16K
  • 6" (DN150) - JIS 20K
  • 6" (DN150) - JIS 30K
  • 6" (DN150) - PN 10
  • 6" (DN150) - PN 20 (ISO)
  • 6" (DN150) - PN 25
  • 6" (DN150) - PN 40

Flange Size - 8" (DN200)

  • 8" (DN200) - 150# (ASME)
  • 8" (DN200) - 300# (ASME)
  • 8" (DN200) - JIS 10K
  • 8" (DN200) - JIS 16K
  • 8" (DN200) - JIS 20K
  • 8" (DN200) - JIS 30K
  • 8" (DN200) - PN 10
  • 8" (DN200) - PN 20 (ISO)
  • 8" (DN200) - PN 25
  • 8" (DN200) - PN 40
  • 8" (DN200) - PN 50 (ISO)

Gasket Material

  • Graphite

Gland Material

  • 316 Stainless Steel (EN 10213 to 1.4408 / ASTM A 351 Grade CF8M)

Materials of Construction

  • Key, Stud: Stainless Steel
  • Pin: 165M Stainless Steel (1.4418)
  • Pin: 630 Stainless Steel (ASTM A 546 Grade 630, 17-4 PH)
  • Pin: AISI 329 Stainless Steel
  • Retaining Plate: 316L Stainless Steel (EN 10088 to 1.4435 CF8M)

NACE & NIST

  • NACE MR-0103
  • NACE MR-01-75

Name Plate, Tag Material

  • AISI 304 Stainless Steel

NPT Connection

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

Nut & Bolt Material

  • Hexagon Nut: Stainless Steel

Packing Material

  • Graphite

Pressure Type

  • Differential

Ring Material

  • Anti Extrusion: Graphite
  • Clamp, Anti Extrusion: 316 Stainless Steel (EN 10213 to 1.4408 / ASTM A 351 Grade CF8M)
  • Seat: Hard Chrome Coated Incoloy® 825
  • Seat: Polymer Hard Chrome Impregated Incoloy® 825
  • V Ring: PTFE

Screw Material

  • Hex Socket Head Cap: Stainless Steel

Seat / Seal Material

  • Body Seal: Graphite
  • Seat: Hard Chrome Plated Alloy [Nimonic 80A, 2.4681, UNS R31233 (ULTIMET)]

Shaft Material

  • 165M Stainless Steel (1.4418)
  • 630 Stainless Steel (ASTM A 546 Grade 630, 17-4 PH)
  • Drive: AISI 329 Stainless Steel

Documentation

Data Sheets

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