Cryogenic Torqseal triple-offset butterfly valves

Product catalog summary

Overview: VELAN SAS, a subsidiary of VELAN Inc, specializes in the design and manufacture of high-performance valves for nuclear and cryogenic applications. Located in Lyon, France, the company operates a modern facility equipped with advanced research and testing capabilities.

Specifications: The valves are designed to meet ASME Classes 150 to 900 (PN20 to PN150) and are available in sizes ranging from 3” to 80” (DN80 to DN2000). They can operate at temperatures as low as -425°F (-254°C).

Design and Technology: VELAN SAS employs a triple-offset design for its cryogenic butterfly valves, ensuring friction-free sealing and long cycle life. The design includes three offsets: the shaft is offset behind the seat axis, the shaft centerline is offset from the pipe and valve, and the seat cone axis is offset from the shaft centerline. This configuration eliminates friction during valve operation and ensures a uniform compressive seal.

Materials and Construction: The valves are constructed with high-quality materials such as stainless steel and feature components like a hardfaced seat, spiral wound SS/Graphite gasket, and a metal disc seal. The design is fire-safe and complies with various international standards, including ISO 15848 and API 607.

Quality Assurance: VELAN SAS maintains a comprehensive Quality Management System with certifications including ISO 9001, ISO 14001, and OSHAS 18001. The company also offers a fully integrated maintenance and services department for on-site servicing worldwide.

Applications: The valves are suitable for use in LNG liquefaction plants, LNG receiving terminals, air separation processes, petrochemical processes, gas-to-liquid (GTL) processes, and aerospace storage facilities.

Dimensions and Weights: Detailed dimensions and weights are provided for various valve sizes and classes, ensuring compatibility with different industrial requirements.

Additional Information: For more details on valve torques, Cv values, and figure numbers, refer to the VELAN TORQSEAL General Catalogue.

Catalog excerpts

Cryogenic Torqseal triple-offset butterfly valves-1

ASME Classes: 150to 900 (PN20 to PN150)Sizes: 3 to 80Ԕ (DN80 to DN2000) Temperatures: down to -425F (-254аC) Triple Offset . Emission free . Fire safe >

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Cryogenic Torqseal triple-offset butterfly valves-2

VELAN S.A.S VELAN Inc Group Located in Lyon - France, in a modern 160.000 sq.ft.(16.000 m > 2 ) plant, VELAN SAS is a 100% subsidiaryof VELAN inc group (Canada). VELAN SAS is specialised in design and manufactureof high performancevalves for Nuclear andCryogenicapplications. VELAN inc is one of the world's leading independent manufacturer of steel gate, globe, check, butterfly and ball valves. Founded in 1949 in Montreal - Canada, VELAN inc employs over 2.000 people and is located worldwide with 14 specialized manufacturing plants in Canada, USA, France, Portugal, Italy, Germany, UK, South Korea,...

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Cryogenic Torqseal triple-offset butterfly valves-3

The VELAN Triple-Offset Cryogenic Butterfly Valve provides bi-directional flow capabilities. This geo-metry ensures that the disc seal contacts the body seat only at the final shut-off position without rubbing or gal- ling, providing a torque generated resilient seal with sufficient "wedging" to ensure a uniform seal contact. > The triple-offset geometry OFFSET 1 : the shaft is offset behind the seat axis to allowcomplete sealing contact around the entire seat. > OFFSET 2 : the shaft centerline is offset from the pipe andvalve which provides interference free opening and clo- sing of the valve....

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Cryogenic Torqseal triple-offset butterfly valves-5

Alternative materials for body, disc and other parts are available upon request to meet specific requirements 5 >

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Cryogenic Torqseal triple-offset butterfly valves-8

Main Applications : LNG Liquefaction Plants LNG Receiving Terminals Air Separation Processes Petro-Chemical Processes Gas To Liquid (GTL) Aero-Space Storage Facilities Main Fluids : > Fluid Boiling Point (C) Boiling Point (аF) Propylene -47.60 -53.68 CO2 -78.50 -109.30 Ethylene-103.70 -154.66 LNG -161.60 -258.88 Oxygen -182.96 -297.33 Nitrogen -195.80 -320.44Hydrogen-252.87 -423.17 VELFLEXADAREGCONTROLVALVES VEL - CRYO 90 rue Challemel Lacour - F69637 LYON Cedex 7 - FrancePhone: +33 (0)4 78 61 67 00 - Fax: +33 (0)4 78 72 12 18 - Email: [email protected] other VELAN valve lines on our web...

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Cryogenic Torqseal triple-offset butterfly valves

Cryogenic Torqseal triple-offset butterfly valves

Catalog excerpts

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