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
Features & Benefits
- 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
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