Flow-rate Characteristics Fluid and Ambient Temperature Valve Leakage Rate Internal Leakage External Leakage FKM Seal material Leakage rate (Oil) Note) 0.1 cm3/min or less FKM Seal material Leakage rate (Oil) Note) 0.1 cm3/min or less Note) Leakage is the value at ambient temperature 20°C. Note) Kinematic viscosity: 50 mm2/s or less Ambient temperature (°C) .20 to 60 Fluid temperature (°C) .5 Note) to 60 Note 1) The operation of the valve may be unstable due to the capacity of the pressure supply source such as pumps and compressors or the pressure loss by the orifice of piping. Please contact SMC to check if the required valve size can be used in the application. Please contact SMC for the compatibility of the circuit flow and valve size. (Refer to page 23.) Note 2) Weight of grommet type. Add 10 g for conduit, 30 g for DIN terminal, and 60 g for conduit terminal type respectively. !Refer to “Glossary of Terms” on page 30 for details on the max. operating pressure differential. Normally Closed (N.C.) N.C. For Oil The kinematic viscosity must not exceed 50 mm2/s. The special construction of the armature adopted in the built-in full-wave rectifier type gives an improvement in OFF response by providing clearance on the absorbed surface when it is switched ON. Symbol 2 1 . Can be used with air and water. Note that the maximum operating pressure differential and flow-rate characteristics should be within the specifications of the fluid used. 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. Min. operating pressure differential Note 1) (MPa) Max. system pressure (MPa) Weight Note 2) (g) 1.9 2.4 5.3 9.2 10.2 46 58 130 220 245 Port size (Nominal diameter) Orifice diameter (mmo) Max. operating pressure differential (MPa) AC DC 0 0.7 1.5 Model 10 15 20 25 1/4 (8A) 3/8 (10A) 1/2 (15A) 3/4 (20A) 1 (25A) Av x 10.6 m2 Cv 600 720 1100 1300 Flow-rate characteristics VXZ233 VXZ243 VXZ253 VXZ263 Body material C37, Stainless steel When the fluid is oil. 10 Series VXZ