Our industry leading high performance product


  • Robust engineering design
  • Flexible lip seat technology
  • Low emissions stem seal technology
  • Fire-tested & cryogenic designs
  • High cycle options
  • High quality


  • Very long service life
  • Bubble tight shut off
  • Low fugitive emissions
  • Automatable
Size range 2 1/2” – 60”
Maximum temperature 260° C / 500° F
Pressure rating ANSI Class 150, 300 & 600; also 6.9 bar /100 psi process rated model
Materials Carbon steel, Stainless steel, Monel, Hastelloy C, and custom materials
Standards Meets ISO-15848 and other emissions standards

Technical bulletin, W101-6 Download
Technical bulletin, W104-1 Download
Technical bulletin, W130-1 Download
Installation, maintenance and operation manuals Download

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