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EMERSON
Final Control

Keystone

Proven butterfly valves with robust construction, for higher cycle life and lower total cost of ownership.

Long Lasting Butterfly Valves with a Sturdy Reputation

Emerson’s Keystone Butterfly Valves solve a complete range of applications from general purpose through to challenging media that require heavy duty and high performance models. With a tradition spanning more than 75 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 comparable butterfly valves.

Keystone Products

Applications for Keystone Products

Keystone products are trusted in demanding applications, backed by decades of experience and a commitment to innovation. The success of Keystone products stems from close collaboration with customers to deliver reliable solutions tailored to their complex process challenges.

Safe Isolation of Chemical Industry Processes
CHEMICAL
Safe Isolation of Chemical Industry Processes

High performance butterfly valves help chemical producers achieve their productivity, safety and sustainability goals.

Reliable Isolation of Leaching Operations
MINING
Reliable Isolation of Leaching Operations

Maximize uptime in your leaching operations with enduring isolation valve technology designed to excel in corrosive media.

Heavy Duty Control of Slurry Underflow
MINING
Heavy Duty Control of Slurry Underflow

Maximize hydrocyclone throughput with butterfly valve designs that provide control for longer in abrasive slurry conditions.

Low Fugitive Emission Valves
ALL INDUSTRIES
Low Fugitive Emission Valves

Valves are likely the leading source of fugitive emissions in your plant. The right valve technology can help.

Videos for Keystone Products

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Keystone™ Series GR Butterfly Valve
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Keystone™ Series GR Butterfly Valve
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Keystone™ CompoSeal Composite Butterfly Valve
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Keystone Series 38 High Performance Butterfly Valve Product Feature Video

Resources for Keystone Products

Services for Keystone Products

Valve Maintenance Services
Valve Maintenance Services

Minimize downtime and keep your daily operations compliant, running safe, consistent, and economical.

Valve Reliability Services
Valve Reliability Services

Maintain, preserve, and optimize your assets using predictive, data-driven services and programs.

Valve Performance Services
Valve Performance Services

Increase plant level optimization, training, and planning aligned to your business goals.

Valve Educational Services
Valve Educational Services

Train new hires, improve current workforce skills, and learn about new technology and products.