Automatic Sampler for liquids and slurries from pressurized conveying lines. The QCEC Model LL-3 Liquid Flow Automatic Sampler uses a 440 C stainless steel reciprocating probe with 15 cc sample capacity to receive a sample. Each sample cycle begins with the control actuating a 4 way solenoid valve. The solenoid valve activates twin air cylinders extending the probe into the process line. The probe is retracted and the sample is discharged into the composite container.