Product - MV Series

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​Triple Eccentric Metal Seated Valves

Customers worldwide specify our MV Series valves in their applications because of their unique combination of control, reliability and compactness. This makes them fit for purpose in critical high pressure, tight shut-off, high temperature or cryogenic, throttling and isolation duties.


​Key features​


  • Resilient metal-to-metal seal

  • Full metal construction

  • Zero leakage bi-directional tight shut-off

  • Quarter turn friction-free operation

  • Fire-safe and fire-tested

  • Integral external position indicator on valve shaft and body

  • Wide range of materials and sizes

  • Triple eccentric design

  • External anti-blowout device


Benefits​

  • Unique triple eccentric metal seat design 

    • Prevents wear 

    • Zero leakage

    • Longer service life

    • Allows for lower operating torques

    • Tight seal from bi-directional pressure

    • Corrosion and erosion resistant

  • One-piece seat integrated body

    • Conical and inclined

    • Ultimate rigidity

    • Leak-free performance

    • Uninterrupted flange sealing surface

  • One-piece shaft and disc arrangement

    • Minimal hysteresis

    • Improves flow capability

    • Reduces pressure drop

  • Special bushings offer immunity to dirt and polymeric media creating a longer service life

  • Adjustable stuffing box allows flushing, additional sealing, leakage control or monitoring​


 

Seal ring seated




Seal ring prior to seating


        Unique triple ecc​entric design

Typical applications​


  • LNG
  • Process fluids
  • Hydrocarbons
  • Steam / geothermal steam
  • Hot gas / sour gas (NACE)



  • Oxygen / hydrogen
  • Blow down
  • Sulphur recovery
  • Acid / caustic / chloride
  • Abrasive service

Product Specification


Materials
WCB
CF8M, CF3M
LCB, LCC, LC3
Duplex
Superduplex
Monel
Hastelloy
254 SMO
Alloy steel WC6, WC9
Inconel
Alloy 20
Aluminium bronze
Titanium
C5, C12

Body styles
See below
Production range
ND 2” – 160” ANSI CI.150
ND 2” – 160” ANSI CI.300
ND 3” – 80” ANSI CI.600
ND 6” – 48” ANSI CI.900
ND 6” – 48” ANSI body in ANSI CI.1500
ANSI CI.2500 with ANSI CI.900 trim​


Temperature limits
From -196°C (-320°F) up to +818°C (+1600°F)

Pressure limits
From full vacuum – up to +450 bar (2200 psi)

Applicable standards

Design: ANSI B16.34/ ASME VIII/ API 609Face to face: API 609/ ISO 5752Double flanged connection: B16.5/ B16.47/ ASME VIII/ DIN/ ISOFire test: BS 6755–API607-ISO FDIS 10497Fugitive emission: ISO 150484-1Testing: API 598​
​Rating

NP 6 – 10 – 16 – 25
ANSI CI.150 – 300 – 600 – 900 – 1500 – 2500​​





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Product - MV Series