Hey brewery and food processing folks! These DERNORD tri-clamp butterfly valves are seriously professional-grade equipment. You get two valves in this pack, both made from durable stainless steel 304 that can handle the tough demands of commercial use. The 1.5 inch tube OD with 50.5mm ferrule size fits standard 1.5 inch tri-clamp connections perfectly. What makes these valves stand out is that cool four-position pull handle - you can set it in full open, half open, or closed positions just by pulling and turning, and it mechanically locks in place so you know it's secure. The design prevents material buildup since the disk rotates parallel to the flow, giving you high water flow with minimal resistance. The nylon sleeve reduces friction, making operation smooth and easy even after repeated use. These valves are demountable too, meaning you can take them apart for thorough cleaning - super important for sanitary applications. They're rated for temperatures from 15°F to 200°F and can handle max pressure up to 1.6MPA. DERNORD tests every valve with 100% pressure hydraulic testing, so you know they're reliable. Whether you're setting up a new brewery system, maintaining winery equipment, or working in food processing, these valves deliver professional performance without the crazy price tag. Solid construction, smart design - what's not to love?