Bellows Seal Valve

Conval’s Clampseal® Bellows Seal valves provide a zero-emission solution, perfect for situations where traditional packed valves might struggle to contain light gases or hazardous fluids due to potential leakage in the stem/packing seal or stuffing box wall/packing seal zones. The valves can be installed in the pressure boundary zone of nuclear plants to ensure reliable and tight shutoff, emitting zero emissions.

These valves not only ensure environmental compliance but also adhere to all specifications outlined in MSS SP-117. Conval Bellows Seal valves are also designed with a pressure seal bonnet that provides easy access for servicing with no welds to cut or seal rings or gaskets to replace.

Technical Summary

  • 1/2” through 4” (4” Reduced Port)
  • Through ASME Class 2500
  • Available in Angle, Y, or T pattern
  • Pressure-assisted seal bonnet
  • In-line repairable
  • Zero Fugitive Emissions
  • Cobalt free seat and disc options available
  • Options: electric, pneumatic, and hydraulic actuators
  • N Stamp Approved
  • F91 Type 1 and Type 2

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Marc Soucy, P.Eng

National Sales Manager

I am a mechanical engineer with 35+ years of experience in plant operations, maintenance, and technical sales. As National Sales Manager I bring deep expertise in the power industry and specialty valve market. Having worked on both sides of the desk, I understand the challenges plant teams face. You can trust that I won’t recommend a product unless I know that it will do the job for you.

Marc Soucy, P.Eng

Directeur National des Ventes

Je suis ingénieur en mécanique et possède plus de 35 ans d'expérience en exploitation, maintenance et ventes techniques industrielles. En tant que directeur national des ventes, j'apporte une expertise approfondie du secteur de l'énergie et du marché des vannes spécialisées. Ayant travaillé sur ces deux fronts, je comprends les défis auxquels sont confrontées les équipes d'usine. Soyez assuré que je ne recommanderai aucun produit sans être certain qu'il répondra à vos besoins.