Amazing Technology
The Shutter Valve™ derives its design from aerospace industry techniques for fluid control, sealing and mechanical systems. Clarke valves have countless millions of hours in service, starting with several years of testing in various real-world environments and conditions, resulting in a perfect valve for customers that demand precise flow processing and a low total cost of ownership. Engineered to be bubble tight, compact, precise, low-torque, inexpensive and ultra-high quality for easy maintenance and greater uptime. Proudly made in the U.S.A.
Universal Mating
With identical End-to-End Dimensions of ASME B16.10 Globe and Ball Valves, no modifications are required for installation. Works with either manual or automatic ISO 5211 actuators.
Inherent Geometric Benefits
Continuous center operation provides virtually no noise or cavitation levels. Curved petals allow smooth, predictable pressure drops, while center notches protect the seals and provide a tight shut off.
Yes, Even Class VI
Optional Class VI “bubble tight” shut off up to ASME Pressure Class 1500 means zero leakage at your operating pressure, with precise throttling capability that's easily programmed into your PLC.
Designed For Safety
ASME B16.34 tested & inspected at 1.5 X specified operating pressure before leaving our facility.
Precision Rangeability
Our aperture creates a centralized flow stream anywhere between a fine mist to a wide-open port, resulting in certified 500:1 Rangeability, 10X better than Globe Valves.
Incredibly Compact Design
On a Cv equivalent basis, we're 20% the size of other valves, with 20% of the weight, while maintaining the ideal equal percentage valve characteristic. Made possible by our unique geometric mechanical design.
Energy Efficient
Our petals open and close perpendicular to the flow, thus reducing the required torque of our valve. That means you can go electric where you couldn’t before, and valve automation costs are significantly reduced.
Versatile
Available in Bronze, Carbon Steel, Stainless Steel, and other custom materials, to suit your individual needs.
Let Our Experts Help YouDesign Your Shutter Valve™
We can customize the perfect Shutter Valve™
solution for your company's control valve needs.
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