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Normally Open (N.O.) Size Port size Orifice diameter (mmo) Model Maximum operating pressure differential (MPa) 0.9 0.45 0.2 0.8 0.15 0.8 0.3 320 320 320 490 490 620 620 2 3 5 4 7 5 8 1/8, 1/4 1/4, 3/8 1/4, 3/8 1 2 3 AV (x 10.6 m2) 0.23 0.42 0.63 0.63 1.08 0.75 1.58 5.5 10.0 15.0 15.0 26.0 18.0 38.0 Conversion Cv Flow-rate characteristics VX245 VX255 VX265 Note) Weight of grommet type. Add 10 g for conduit type, 60 g for conduit terminal type respectively. Size Port size Orifice diameter (mmo) Model Maximum operating pressure differential (MPa) 1 0.6 0.2 1 0.15 1 0.3 0.1 0.1 2 3 5 4 7 5 8 10 10 1/8, 1/4 1/4, 3/8 1/4, 3/8 1/2 1 2 3 AV (x 10.6 m2) 0.23 0.42 0.63 0.63 1.08 0.75 1.58 2.21 2.21 Conversion Cv Flow-rate characteristics VX215 VX225 VX235 5.5 10.0 15.0 15.0 26.0 18.0 38.0 53.0 53.0 300 300 300 460 460 580 580 580 630 1 2 1 2 1.0 Max. system pressure (MPa) 1.0 Max. system pressure (MPa) . This valve can also be used with air, water, oil or heated water. (Refer to the valve specifications for air, water or oil.) For Steam Single Unit Series VX21/22/23 Model/Valve Specifications N.C. Symbol N.O. Symbol When the valve is closed, flow is blocked from port 1 to port 2. However, if the pressure in port 2 is higher than port 1, the valve will not be able to block the fluid and it will flow from port 2 to port 1. Weight (g) Weight (g) Note) Note) Fluid and Ambient Temperature Valve Leakage Rate FKM for high temperature Fluid Seal material Leakage rate 1.0 cm3/min or less 0.1 cm3/min or less FKM for high temperature Steam Heated water Steam Heated water Fluid Seal material Leakage rate 1.0 cm3/min or less 0.1 cm3/min or less Ambient temperature (°C) .20 to 60 Fluid temperature (°C) Steam: 183 or less Heated water: 99 or less Internal Leakage External Leakage Normally Closed (N.C.) 18 |