When it comes to your flow control system, BM Engineering Supplies has you covered. We offer a full range of butterfly valves designed to stop, regulate and start flow. These quarter-turn valves are capable of handling a wide variety of fluids, including highly corrosive and abrasive materials. Among the many types of butterfly valves available, triple eccentric ones offer unparalleled levels of bubble-tight shut-off in extreme applications and come with minimal maintenance requirements. To help you make the best decision for your next project, we compiled this article that answers frequently asked questions about these unique valves.This link:shiphamvalves.com
The Triple Offset
A triple-offset butterfly valve has three separate offsets that work together to cut off media. Two of the offsets apply to the location of the shaft, while the third design feature creates a cone angle between the disc and seat that eliminates any friction throughout the entire operating cycle. This configuration makes the valve suitable for applications that require a tight bubble shut-off, high temperature and hard sealing surfaces.
The angled position of the disc to the seat also minimizes the amount of seat damage caused during opening and closing, which extends the life of the valve and reduces the need for routine maintenance. This is a huge benefit over concentric butterfly valves, which experience a great deal of scraping between their sealing components and are prone to premature wear.
Another key advantage of triple offset butterfly valves is the metal-to-metal seal that they provide. Unlike elastomer or soft-material seals, which can degrade over time, these valves use corrosion-resistant alloys as the seating surface for both the disc and seat to achieve a reliable bubble-tight shutoff in extreme conditions. This type of valve is rated for SIL-3, which means it provides a significant level of safety integrity in critical systems.…