... liquid pressures of 1.5 MPa or less or at gas pressures of 0.99 MPa or less. In the past ... kind of fluid and valve size. SPECIFCATIONSM20 SERIES(GAS)M20 SERIES(LIQUID)M30 SERIESFLUIDAIR , INERT GASWATER , OILGAS , LIQUID , STEAMWORKING PRESSURE0.05 -- 0 ... is equal to seat size. Products certified for high-pressure gas services are also available. Kaneko Valve M20 Series