The Keystone K-LOK Figure 360/362 and 370/372 High Performance Butterfly Valve is engineered for optimal durability and precision in demanding industrial applications. One of the standout features of this valve is the integrally cast mounting pad, which allows for the direct attachment of many different actuators, simplifying installation. Additionally, the rocker-shaped gland bridge is specifically designed to compensate for any uneven adjustments of the gland nuts, ensuring a more reliable seal. The valve’s extended neck accommodates two inches of pipeline insulation, offering increased flexibility in installations.

The design incorporates flattened body bores at the shaft journal ports, positioning the shaft bearings near the disc. This configuration provides maximum support to the shaft, improving overall performance and longevity. A key innovation in the valve’s design is the tangential positioning of disc taper pins, with half of each pin embedded in the disc and the other half in the shaft. This places the pins in compression rather than shear, significantly reducing the potential for failure. To further enhance the valve’s performance, an integrally cast disc position stop ensures the disc is perfectly located within the seat, maximizing both seat and seal life. The valve seats come in various materials, allowing for extended service life across a range of applications.