TYA-LPG YAMATO INDUSTRIAL LP GAS REGULATOR. Description YA-LPG : Low Pressure Meter (kg/cm2) : 1.9 Primary-side (kg/cm2) : ~15.6 Secomdary-side Range (kg/cm2) : 0.1~1.3 Flow (P kg/cm2) : 13NM3/H P1 : 15 P2 : 1.0