Metso Neles Butterfly Valve, BWX Series
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Neles BWX Series Butterfly Valve

Brand: Valmet
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The BWX Series Butterfly Valve has been especially designed for a wide range of industrial applications. 

It can be used for standard temperature up to 425° C (797° F) with carbon steel body material as well as in cryogenic applications with high quality CrNi steel. 

High efficiency by high flow capacity and low torques combined with fast maintenance capabilities, safety and reliable performance are main highlights of this valve series. 

The compact design of the valve permits rapid temperature balance and minimizes especially in cryogenic cool down processes the boil off loss.

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Specifications

Brand

Actuator Type

  • Manual Gear Operator
  • Pneumatic

Applications

  • Cryogenic Systems

Approvals & Certifications

  • API 598
  • API 607
  • API 609
  • BS 5351

Bonnet Material

  • Carbon Steel (ASTM A516 Grade 70 / 1.0566)

Disc Material

  • 316 Stainless Steel - A351 Grade CF8M
  • Steel (1.4317 / CA6NM)

Element

  • Sealing: Inconel 718 (UNS N07718)
  • Sealing: Stainless Steel (A182 F6NM)

Enclosure Finish

  • Seat: Silver Coated

Enclosure, Body Details

  • Lug
  • Wafer

Enclosure, Body Material

  • 316 Stainless Steel (A351 Grade CF8M/1.4408)
  • Carbon Steel (ASTM A216 Grade WCB / 1.0619)

Flange Size - 10” (DN 250)

  • 10” (DN 250) - 150# ASME
  • 10” (DN 250) - 300# ASME
  • 10” (DN 250) - 600# ASME
  • 10” (DN 250) - PN 10
  • 10” (DN 250) - PN 100
  • 10” (DN 250) - PN 16
  • 10” (DN 250) - PN 25
  • 10” (DN 250) - PN 40
  • 10” (DN 250) - PN 63

Flange Size - 12” (DN 300)

  • 12” (DN 300) - 150# ASME
  • 12” (DN 300) - 300# ASME
  • 12” (DN 300) - 600# ASME
  • 12” (DN 300) - PN 10
  • 12” (DN 300) - PN 100
  • 12” (DN 300) - PN 16
  • 12” (DN 300) - PN 25
  • 12” (DN 300) - PN 40
  • 12” (DN 300) - PN 63

Flange Size - 14” (DN 350)

  • 14” (DN 350) - 150# ASME
  • 14” (DN 350) - 300# ASME
  • 14” (DN 350) - 600# ASME
  • 14” (DN 350) - PN 10
  • 14” (DN 350) - PN 100
  • 14” (DN 350) - PN 16
  • 14” (DN 350) - PN 25
  • 14” (DN 350) - PN 40
  • 14” (DN 350) - PN 63

Flange Size - 16” (DN 400)

  • 16” (DN 400) - 150# ASME
  • 16” (DN 400) - 300# ASME
  • 16” (DN 400) - 600# ASME
  • 16” (DN 400) - PN 10
  • 16” (DN 400) - PN 100
  • 16” (DN 400) - PN 16
  • 16” (DN 400) - PN 25
  • 16” (DN 400) - PN 40
  • 16” (DN 400) - PN 63

Flange Size - 18” (DN 450)

  • 18” (DN 450) - 150# ASME
  • 18” (DN 450) - 300# ASME
  • 18” (DN 450) - 600# ASME
  • 18” (DN 450) - PN 10
  • 18” (DN 450) - PN 100
  • 18” (DN 450) - PN 16
  • 18” (DN 450) - PN 25
  • 18” (DN 450) - PN 40
  • 18” (DN 450) - PN 63

Flange Size - 20” (DN 500)

  • 20” (DN 500) - 150# ASME
  • 20” (DN 500) - 300# ASME
  • 20” (DN 500) - 600# ASME
  • 20” (DN 500) - PN 10
  • 20” (DN 500) - PN 100
  • 20” (DN 500) - PN 16
  • 20” (DN 500) - PN 25
  • 20” (DN 500) - PN 40
  • 20” (DN 500) - PN 63

Flange Size - 24” (DN 600)

  • 24” (DN 600) - 150# ASME
  • 24” (DN 600) - 300# ASME
  • 24” (DN 600) - 600# ASME
  • 24” (DN 600) - PN 10
  • 24” (DN 600) - PN 100
  • 24” (DN 600) - PN 16
  • 24” (DN 600) - PN 25
  • 24” (DN 600) - PN 40
  • 24” (DN 600) - PN 63

Flange Size - 4” (DN 100)

  • 4” (DN 100) - 150# ASME
  • 4” (DN 100) - 300# ASME
  • 4” (DN 100) - 600# ASME
  • 4” (DN 100) - PN 10
  • 4” (DN 100) - PN 100
  • 4” (DN 100) - PN 16
  • 4” (DN 100) - PN 25
  • 4” (DN 100) - PN 40
  • 4” (DN 100) - PN 63

Flange Size - 6” (DN 150)

  • 6” (DN 150) - 150# ASME
  • 6” (DN 150) - 300# ASME
  • 6” (DN 150) - 600# ASME
  • 6” (DN 150) - PN 10
  • 6” (DN 150) - PN 100
  • 6” (DN 150) - PN 16
  • 6” (DN 150) - PN 25
  • 6” (DN 150) - PN 40
  • 6” (DN 150) - PN 63

Flange Size - 8” (DN 200)

  • 8” (DN 200) - 150# ASME
  • 8” (DN 200) - 300# ASME
  • 8” (DN 200) - 600# ASME
  • 8” (DN 200) - PN 10
  • 8” (DN 200) - PN 100
  • 8” (DN 200) - PN 16
  • 8” (DN 200) - PN 160
  • 8” (DN 200) - PN 25
  • 8” (DN 200) - PN 40
  • 8” (DN 200) - PN 63

Flange Type

  • Ring Joint Facing

Flow Capacity

  • 223 to 29,770 Cv

Gland Material

  • Blank: 316 Stainless Steel (A351 Grade CF8M / 1.4408)

Materials of Construction

  • Extension, Compression Sleeve: AISI 316 Stainless Steel
  • Key: AISI 329 Stainless Steel (1.4460)
  • Retainer Plate: AISI 316L Stainless Steel (1.4435)
  • Stud: Stainless Steel
  • Thrust Washer, Bearing Sleeve: Bronze
  • Thrust Washer, Bearing Sleeve: PTFE
  • Thrust Washer: AISI 630 Stainless Steel (17-4 PH)
  • Thrust Washer: Nitronic 50 (ASTM A479 Grade XM-19-H)
  • Thrust, Bearing Sleeve: Nickel Resistant (Ni Resist)

NACE & NIST

  • NACE MR-0103
  • NACE MR-0175

Nut & Bolt Material

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

Packing Material

  • PTFE

Port

  • Full

Ring Material

  • Bottom, Anti-Extrusion: AISI 316 Stainless Steel
  • Packing: Graphite
  • Retaining, Spacer: 316Ti Stainless Steel, 1.4542

Screw Material

  • Worm, Hexagon, Cylinder Head: Stainless Steel (ISO 3506 A2-70)

Seat / Seal Material

  • Seal: Graphite

Shaft Material

  • Drive, Stub: 630 Stainless Steel (17-4 PH)
  • Drive, Stub: Nitronic 50 (ASTM A479 Grade XM-19-H)

Spring Material

  • Disc Spring Set: Steel (1.8159)

Documentation

Data Sheets

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