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Long Lasting Butterfly Valves with a Sturdy Reputation Long Lasting Butterfly Valves with a Sturdy Reputation

Butterfly Valves with a reliable, robust construction, and higher cycle life with lower total cost of ownership

Keystone offers a complete range of butterfly valves from general purpose through to heavy duty and high performance models. With a tradition of more than 70 years, Keystone built its reputation on providing industrial process butterfly valves known for their reliability, long service life, and reduced operating costs. Independent, third-party life-cycle testing has shown that Keystone resilient-seated butterfly valves last 2.5 times longer than competitors' butterfly valves.


Repair Services

All makes and models of valves and actuators can be serviced by our experienced technicians. We can perform inspection and repair services both in our shop and at your facility.
  • Isolation, gate, globe and check valves
  • Ball, butterfly and plug style valves
  • Electric, pneumatic and hydraulic actuators
  • Pressure relief valves including tank relief assets
  • Integral Shop and Field Welding capability

Field & Depot Services

Our repair technicians are available 24/7 to meet your services requirements. Shop repair as well as full field service is only a phone call away. Our 53’ Mobile Machine shop and various tooling trailers are ready to mobilize at a moment’s notice.