The GPC1 is an alternative for setting and precisely adjusting high gas pressures in calibration and test systems. It combines the simplicity of manually operated systems with the convenience of automated features. Pressure adjustments are achievable using a piston based variable volume. Mpg2mpg2GPC1-16000 pressure to 16,000 psi (110 MPa), GPC1-10000 pressure to 10,000 psi (70MPa).