PBM Animation pin hastelloy, movable sampling valve. Available in hastelloy and other materials. Manual operation and automation of the air option. (http://lh3.ggpht.com/_veNt4wCNwxE/SwzTYN0mxGI/AAAAAAAAIPk/Q2JozyI-A7k/s72/PBM_movable_valve_Animation_Study%2C_hastelloy.jpg)