Cartridge needle valve is 15/16 in. installed and offers precise flow adjustment with 56 threads/in. It incorporates into manifolds for smaller envelope, reduced assembly time, and fewer parts. Maximum inlet pressure is 300 psig. It controls flows 1 scfm at 50 psig. Metal-to metal seal provides positive shut-off down to vacuum of 25 in. Hg. Inlet/installation 10-32 external thread has O-ring face seal for leak-tight connections.

Beswick Engineering Co. Inc., (603) 433-1188,