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A silver industrial butterfly valve with a large blue handwheel is shown against a white background. The valve features a circular disc and flanged connections.

Velflex cryogenic high performance flanged butterfly valves

Product Line
  • Cryogenic high performance butterfly valves
Product Type
  • Butterfly

Features & Benefits

  • Stem seal: Viton O-rings; Expanded graphite ring for fire safe
  • No cavity: There is no cavity to allow build-upof solids
  • Double offset: Ensures a progressive smooth and low friction seat-disc closing. Hardened sealing surface to provide high level of tightness and long lifetime
  • Fire safe design: All metal construction providing inherent fire safe
  • Unique sealing system: Combined with the eccentric disc rotation, the patented flexible metallic seat provides an exceptional tight shutoff even with high temperature fluctuations
  • Actuators: Pneumatic, hydraulic, electric or manual gear; fast acting actuators for Emergency Shut Down (ESD) function
  • Extended Bonnet: With a sufficient gas column to keep the stem packing away from the cold fluid
  • High quality castings: With X-ray and PT examinations from approved foundries
  • Stainless steel shaft bearings: Coated with nickel-reinforced PTFE for high cycle and smooth operation
  • Reliability: Reliability of valve operation affects service life and ease of inspection and maintenance. In order to predict reliability, a sound valve design must be backed up by a stress analysis and functional qualification testing under critical operating conditions.

Product Details

Spec Detail
Size Range NPS 6 - 48
(DN 150 - 1200)
Pressure Class ASME Classes
150 - 300
Standard Connections Flanged

Quality That Lasts

Precision Engineered

Our products, crafted with cutting-edge precision, set the industry standard for quality, reliability, and versatility across an expansive range of applications.

Long-Lasting & Durable

Velan leverages advanced engineering capabilities and innovation to create durable valves that meet critical industrial needs in the areas of nuclear power, mining, oil and gas, and more.

Certified & Tested

Innovation is our DNA. From our first steam trap to advanced cutting-edge valve designs, we are committed to providing solutions that define the highest standards of quality and performance.

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Need support or have a question? The Velan team is here to help.

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