Navco resilient seated butterfly valves

Robust valves that provide a long operating life and reliable bubble-tight sealing

Rendering of a 3-in, lug-style Navco resilient seated butterfly valve with handwheel-operated gearbox.
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Navco™ resilient seated butterfly valves provide reliable isolation with zero leakage. The top flange complies with ISO 5211, facilitating integration across a wide range of applications. An epoxy-coated body and stainless steel fasteners deliver resistance to corrosion and weather conditions, while self-lubricating bushings and a robust seat design further contribute to extending service life.

These valves control fluid flow by rotating a disc within the valve body. The valve is open when the disc is parallel to the flow and closed when it is perpendicular. The reliable quarter-turn mechanism enables precise flow regulation and isolation. Self-lubricating bushings and self-adjusting stem seals ensure a maintenance-free, extended operating life.

Image of 2 Navco resilient seated butterfly valves in lug style, with handwheel-operated gearboxes.
3-in (left) and 24-in (right) Navco resilient seated butterfly valves in lug style, with handwheel-operated gearboxes.
  • Data center cooling circuits
  • HVAC chilled water and condenser water systems
  • Process cooling in industrial facilities
  • Water treatment and distribution
  • Chemical and industrial fluid handling
  • Bidirectional valves with zero leakage at full shutoff pressure
  • Lug design rated for end-of-line service
  • Self-lubricating bushings
  • Self-adjusting stem seal
  • Wide sealing surface for improved sealing reliability, adaptability, and installation tolerance
  • Reduced torque requirement because of low-friction design
  • Available with lever or gearbox (handwheel- or chainwheel-operated)