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Flow-rate Characteristics Normally Closed (N.C.) N.C. Fluid and Ambient Temperature Valve Leakage Rate Internal Leakage For Water NBR (FKM) Note 2) Seal material Leakage rate (Water) Note 1) 0.1 cm3/min or less NBR (FKM) Note 2) Seal material Leakage rate (Water) Note 1) 0.1 cm3/min or less Note) With no freezing External Leakage Ambient temperature (°C) .20 to 60 Fluid temperature (°C) 1 to 60 Symbol Port size (Nominal diameter) Orifice diameter (mmo) Min. operating pressure differential Note 1) (MPa) Max. operating pressure differential (MPa) AC DC 0 1.0 1.5 Model Max. system pressure (MPa) 10 15 20 25 0.7 1.0 1/4 (8A) 3/8 (10A) 1/2 (15A) 3/4 (20A) 1 (25A) Av x 10.6 m2 Cv 1.9 2.4 5.3 9.2 10.2 600 720 1100 1300 46 58 130 220 245 Flow-rate characteristics VXZ232 VXZ242 VXZ252 VXZ262 Weight Note 2) (g) Body material C37, Stainless steel 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. . Can be used with air (Up to 133 Pa.abs for vacuum). Note that the maximum operating pressure differential and flow-rate characteristics should be within the specifications for air. 2 1 Note 1) Leakage is the value at ambient temperature 20°C. Note 2) For seal material/FKM, refer to “Other options” on page 20 for the selection. 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. Zero Differential Pressure Type Pilot Operated 2 Port Solenoid Valve 7 Series VXZ Dimensions Construction Options For High For Heated Water For Oil For Water For Air Specifications Temperature Oil