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Crane Center Line® Series RS Butterfly Valves
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Crane Center Line® Series RS Butterfly Valves


Center Line® RS resilient seated butterfly valves provide repeatable, vacuum-tight shutoff across abrasive, corrosive applications. The replaceable cartridge seat design with solid backup enables reliable service life in demanding processes.

The RS centerline series RS butterfly valve delivers maximum corrosion resistance by having only two wetted components (disc and seal) and no exposed metal-to-metal contact points. Additional corrosion and abrasion resistance come from a self-centering disc with a wear reducing smooth spherical edge.  


  • Bi-directional shutoff.
  • Suitable for use as a quick-closing valve.
  • Concentric, soft seat design.
  • Top flanges standardized/optimized for easy actuator installation.
  • Blowout-proof shaft.
  • Shafts mounted in self-lubricating DU® bearings making them maintenance-free.


  • Power - Flue Gas Desulfurization, water, chemical isolation
  • Sugar applications- juice extraction/cleaning/evaporation, crystallization, auxiliary systems. 
  • Chemical processing water systems.
  • Steel cooling water systems. 
  • Vacuum coating systems.
  • Industrial cleaning and filtration.
  • Industrial heat treatment.


  • Sizes: 1.5” to 56”, (DN 40 to DN 1400). 
  • ASME Class 150, PN10, PN16.
  • Temperatures: -22°F (-30°C) up to 392°F (200°C) based on material.
  • Body configurations: wafer type, wafer type with centering pins, lug, double flanged.
  • Additional trunnion bearing and shaft extensions available.


Center Line® has been a market leader in quarter-turn valves for more than 40 years, and we have earned a reputation as a supplier of superior valves at competitive prices. Our goal is to exceed industry requirements and customer expectations. We are committed to offering products that meet a wide range of applications and requirements. We continually improve our product line by introducing new products and enhancing existing designs, providing our customers with the best products on the market. Our complete line of resilient seated butterfly valves provides you with the reliability you need, backed by the guarantee that comes with using valves designed and produced in company-owned manufacturing facilities.


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At Crane Engineering, your experience as our customer matters.

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