80 & 81 Series Resilient Seated Butterfly Valve

API Standard 622

Soft seated cartridge seat type butterfly valve

One piece body construction, direct mount

ISO 5211 mounting pad

NSF61 certified

TAA compliant

Manufactured by foxboro

 

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Description

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  • One piece body construction of ductile iron, cast iron or Stainless Steel and complies with API 609, MSS SP 67, and ISO 5752
  • ISO 5211 mounting pad with square or key type stem shaft permits direct mount actuation for both manual (lever and gear), pneumatic and electric operations
  • Teflon stem bushing to assure long life even during extended period of activity. Lower operator torque for easy manual operation and maximum shaft support
  • High strength two-piece stem eliminates taper pins or disc screws, which often fail prematurely through abrasion, corrosion or fatigue
  • All disc castings are spherically machined and polished for extended seat life and bubble tight shut off
  • Seat type available in both encapsulated phenolic or aluminum-backed cartridge seat. Cartridge design seat permits easy change without special tools
  • Reduced disc option for lower pressure applications, requiring lower torque and smaller actuators
  • Conforms to API 598 and MSS SP 61. Shell tested to 150% and seat tested to 110% of maximum working pressure
  • Full rated disc, lug body valves are rated for 150 psi in dead end service
  • Live loaded packing

Documentation

  • Datasheet 80-81-Series-BFV-Catalog
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