Flow Control & Instrumentation

Clarke has developed the patented Shutter Valve to meet the ASME B16.34, ASME B16.10 and ASME B16.5 international valve standards, as well as ISO 5211 standards for valve automation. Shutter Valves are available in sizes 1/4″ – 12″, ANSI pressure classes 150 – 1500, in ISA or ANSI Globe Valve face-to-face dimensions, an equal percentage flow characteristic, and very low torque requirements, all in a package that weighs and costs much less than equivalent Globe Valves. As a result, industrial valve customers all over the world now have a costs effective alternative to Globe Valves, while keeping all of the performance attributes their processes require.

Due to its best-in-class sealing system, the Shutter Valve is also the first control valve to achieve both API 641 and ISO 15848-1:2015 certifications, making it the world’s most compact, efficient, and environmentally friendly control valve.

Flow-Tek’s technologically advanced ball valve design is the product of a highly evolved research and development program. Each valve incorporates premium components from certified vendors. The components that go into Flow-Tek valve must pass rigorous incoming quality inspection procedures.  Each casting has a foundry heat number for traceability.

Computer aided design technology increase the accuracy and decreases product cost. All parts are precision machined on modern numerical control machinery-all manufactured in strict adherence to internationally recognized standards and specifications, including: ASME, API, NACE, and ISO. Each valve is assembled and tested by dedicated craft person.