Product - MV Series Cryogenic

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

IMI Orton’s MV Series valves are specified worldwide for their unique combination of control, reliability and compactness. They are used for critical high pressure, tight shut-off, high temperature or cryogenic, throttling and isolation duties in critical high pressure tight shut-off, high temperature or cryogenic, throttling and isolation duties.​

​Key features

  • Triple eccentric design

  • Resilient metal-to-metal sealing

  • Quarter turn friction-free operation

  • Fire-safe and fire tested

  • Torque seated

  • External anti-blowout device

  • Bi-directional tight shut-off

  • Wide range of materials and sizes


The unique IMI Orton triple eccentric design eliminates friction between the disc seal ring and the seat in the body, thereby preventing wear and any consequent leakage. The result is a valve with a longer service life, in which all sealing elements (seal ring on the disc, seat ring on the body) are fully replaceable with the valve in-line.

  • Easy in-line maintenance
    • Inspection door allows quick access for inspection and maintenance
    • No need to remove actuator, bonnet or packaging
    • No special tools or big cranes required

  • Unique triple eccentric metal seat design
    • Prevents wear
    • Eli​minates leakage
    • Longer service life
    • Allows for lower operating torques
    • Tight seal from bi-directional pressure
    • Conical and inclined
    • Corrosion and erosion resistant

  • One-piece shaft and disc arrangement
    • Minimal hysteresis
    • Improves flow capability
    • Reduces pressure drop​


66" cl. 150 actuated after cryo test​

Typical applications

  • LNG liquefaction plants

  • Cargo systems of LNG tankers

  • LNG receiving regasification terminals

  • Aerospace ground support facilities

​​Product specification and dimensions

As suitable list or for all applications

Production range
2" – 120" ANSI CI.150
2" – 80" ANSI CI.300
3" – 60" ANSI CI.600
6" – 48" ANSI CI.900
ANSI CI.1500 and ANSI CI.2500 on special request

Temperature limits
From -196°C (-320°F) up to +80°C (+176°F)

Pressure limits
Up to +150 bar of shut off differential pressure

Applicable standards
Design: ASME B16.34 / ASME B16.10 / ASME VIII / API 609 / BS 6755 – API 607 (fire-safe)
Flange Connection: B16.5 or B16.34
Butt Weld Connection: B16.25

ANSI CI.150 – 300 – 600 and 900​​

​Larger image can be found in downloadable brochure on right hand side of this page.

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Product - MV Series Cryogenic