Manual Butterfly Valves: Low-Tech but Still Relevant
Amidst all the high-technology automation and remote operation of valves that are so prevalent nowadays, there's still a lot to be said in favor of the reliability and simplicity of a manual butterfly valve. It has no whistles and bells of the electric or air-actuated variety, but for most situations, that's the idea—it simply works. If you're dealing with fluid flow through a pipeline, process plant, or even a water supply network, there's a fair chance you've used butterfly valves along the way. Their disk design is perfect for tight spaces, quick shut-off, and safe closure, and the manual version provides full control without reliance on an external power source. Why Manual Still Makes Sense Not every valve needs to be installed in a smart system in the first place. In most plants and applications of utilities, manual butterfly valves are applied only because they are convenient to operate, don't need any complicated wiring, and can be fixed or replaced with...