Flow-rate Characteristics Symbol N.O. 2 1 Normally Open (N.O.) Fluid and Ambient Temperature Valve Leakage Rate Note) Dew point temperature: .10°C or less Ambient temperature (°C) .20 to 60 Fluid temperature (°C) .10 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. Port size (Nominal diameter) Body material Orifice diameter (mmo) Min. operating pressure differential Note 1) (MPa) Max. operating pressure differential (MPa) AC DC Model Max. system pressure C (MPa) [dm3/(s・bar)] b Cv Flow-rate characteristics Weight Effective area (g) (mm2) 0 0.7 0.6 10 15 20 25 Aluminum Resin C37, Stainless steel 1.7 1.2 2.0 2.4 2.6 6.0 9.4 0.38 0.44 0.43 0.34 0.26 6.2 5.3 8.0 8.5 9.3 23.0 36.0 VXZ2A0 VXZ2B0 VXZ2C0 VXZ2D0 o10 o3/8" o12 1/4 (8A) 3/8 (10A) 1/2 (15A) 3/4 (20A) 1 (25A) 1.5 430 630 750 1150 1350 . . 185 Internal Leakage 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. NBR (FKM) Note 2) Seal material Leakage rate (Air) Note 1) 15 cm3/min or less (Aluminum body type) 15 cm3/min or less (Resin body type) 1 cm3/min or less (Metal body type) NBR (FKM) Note 2) Seal material Leakage rate (Air) Note 1) 15 cm3/min or less (Aluminum body type) 15 cm3/min or less (Resin body type) 1 cm3/min or less (Metal body type) External Leakage For Air 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 Note 2) 5 Series VXZ Dimensions Construction Options For High For Heated Water For Oil For Water For Air Specifications Temperature Oil