04/27/2026
Three common connection styles—each built for a different job:
Conical joints (ground glass) are the classic lab standard. They use a tapered glass-on-glass fit (usually a 1:10 taper) to form a seal—sometimes with a bit of vacuum grease. They’re simple, reusable, and chemically resistant, which makes them perfect for distillation and analytical setups. The tradeoff? They’re fragile and not built for high pressure.
Tri-clamp fittings (Tri-Clover) are the go-to in food, beverage, and pharma. Two ferrules + a gasket + a clamp = a clean, secure, and sanitary seal. They’re incredibly easy to assemble, durable (usually stainless steel), and designed for hygienic flow—but they’re bulkier and not meant for high vacuum environments.
ISO-KF vacuum flanges (quick flanges) are built for vacuum systems. They use a clamp and an O-ring (often Viton) to create a tight, reliable seal—good down to high vacuum levels. They’re modular, fast to connect, and widely standardized (KF-16, KF-25, KF-40), though not suitable for ultra-high vacuum or extreme temperatures.
Different tools, same goal: making tight, dependable connections where it matters.
