The SMC XLH-16-X670 is a manual, aluminum high-vacuum angle valve featuring a clean, particulate-free bellows seal. Designed with a  KF flange, its pressure-balanced structure enables an unrestricted exhaust direction with low outgassing and an ultra-low manual actuation torque. This high-conductance, compact valve minimizes heavy metal contamination, making it ideal for semiconductor processing, vacuum chambers, and cleanroom applications.