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Today we take a look at the Vacuum 90-Degree Elbow (SUS304), widely used in industrial settings. When configuring a vacuum piping system, it is often necessary to change the direction of piping. The go-to component for this purpose is the 90-degree elbow (Elbow). In fields such as semiconductors, chemicals, bio, and research equipment, vacuum-grade stainless steel fittings must be used rather than standard piping components - which is why SUS304 vacuum elbows are widely used.
A vacuum 90-degree elbow is a connector used to change the direction of piping by 90 degrees in a vacuum line. Since straight piping alone has limitations in equipment layout, elbow fittings are used to match space efficiency and equipment structure. Unlike standard piping products, vacuum elbows are machined with highly precise internal surfaces and manufactured to minimize leakage.
In a vacuum system, the piping layout between chambers, pumps, and exhaust manifolds is critically important. Direction-change fittings are essential because piping direction often needs to change within a constrained space. The smooth internal surface structure reduces gas flow resistance and minimizes the potential for particle accumulation. Precision welding and connection finishing provide leak-prevention performance and stable vacuum maintenance.
SUS304 is one of the most commonly used stainless steel materials. It contains chromium (Cr) and nickel (Ni), giving it excellent corrosion resistance with low susceptibility to rust. It is also relatively stable in high-temperature environments and with chemical substances, making it well-suited to vacuum piping systems.
Vacuum piping is not merely a connection - it is a critical factor that determines process stability and vacuum maintenance performance. If you need to change the direction of piping, we recommend the SUS304 Vacuum 90-Degree Elbow, which offers both stability and durability.
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