Direct Operated 2 Port Solenoid Valve New RoHS Air Medium Water vacuum Oil Steam ∗ Can be used with heated water. Large flow rate Compact Lightweight Flow rate Height Weight 10 % Smaller∗ 30 % Lighter∗ ∗ 20 % More flow (Size 1) 3IZE !LUMINIUM BODY (Size 1) ∗ Comparison with SMC conventional model Conventional model New VX Body material Air Aluminium, Resin Water/Oil/ Medium vacuum/Steam C37 (Brass), Stainless steel IP65∗ ∗ Electrical entry "Faston" type terminal is IP40.
Direct Operated 2 Port Solenoid Valve Medium Water vacuum Air Oil Steam ∗ Can be used with heated water. Enclosure IP65 Clearance By providing a bumper and clearance, we reduced the collision sound of the core when ON (when the valve is open). Because of the clearance, when using highly viscous fluids such as oil, the armature does not get stuck and the responsiveness when OFF (when the valve is closed) is improved. Flame resistance UL94V-0 conformed Power consumption ∗ DC/Class B, N.C. valve 4.
Model/Valve Specifications, Fluid and Ambient Temperature, Valve Leakage ..... 8 How to Order (Solenoid Valve for Manifold, Manifold Base), Blanking Plate Assembly Part No., How to Order Manifold Assembly (Example) ... 9 For Medium Vacuum Model/Valve Specifications, Fluid and Ambient Temperature, Valve Leakage ... 10 How to Order (Single Unit) .................................................... 11 Model/Valve Specifications, Fluid and Ambient Temperature, Valve Leakage ...
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 For Air, Medium Vacuum, Water, Oil and Steam Single Unit (For Air, Medium Vacuum, Water, Oil and Steam) Valve type Normally Closed (N.C.) Normally Open (N.O.) Solenoid coil type Insulation type: Class B, Class H Rated voltage 100 V/200 V/110 V/230 VAC (220 V/240 V/48 V/24 VAC) 24 V/12 VDC Electrical entry Grommet Conduit DIN terminal Conduit terminal Faston terminal Normally Closed (N.C.
Series VX21/22/23 Specifications Common Specifications Standard Specifications Valve construction Withstand pressure Body material Aluminium, Resin, C37 (Brass), Stainless steel Seal material Note 2) NBR, FKM Environment Location without corrosive or explosive gases AC Rated voltage Coil specifications For Air Dust-tight, Water-jet-proof type (IP65) Note 1) Enclosure 24 VAC, 48 VAC, 100 VAC, 110 VAC, 200 VAC, 220 VAC, 230 VAC, 240 VAC DC 12 VDC, 24 VDC ±10% of rated voltage Allowable voltage
Series VX21/22/23 Selection Steps Selection Steps Step 1 Select the fluid. Item Select the fluid. Selection item Page Symbol Air Page 5, 6 0 Water Page 14 2 Oil Page 16 3 Medium vacuum Steam Page 10 4 Page 18 5 ∗ Can be used with heated water. q VX2 3 0 A A q Step 2 Select “Body material”, “Port size” and “Orifice diameter” from “Flow rate — Pressure” of each fluid. Item Select from “Flow rate — Pressure.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 Specifications For Air Single Unit Model/Valve Specifications pecifications For Air N.C. 1 For Medium Vacuum Passage symbol 2 Refer to “Glossary of Terms” on page 29 for passage symbols. 1 1/8, 1/4 2 1/4, 3/8 Model 2 3 5 4 7 5 8 10 10 1/4, 3/8 3 Flow-rate characteristics Orifice diameter [mmø] 1/2 C [dm3/(s·bar)] 0.63 1.05 2.20 1.90 3.99 1.96 5.67 5.74 8.42 VX210 VX220 VX230 b Cv 0.63 0.68 0.39 0.52 0.44 0.55 0.33 0.64 0.
Series VX21/22/23 For Air Single Unit Model/Valve Specifications N.O. Passage symbol 1 2 Refer to “Glossary of Terms” on page 29 for passage symbols. AIuminium Body Type Size Port size 1 1/8, 1/4 2 1/4, 3/8 3 1/4, 3/8 Flow-rate characteristics Orifice diameter [mmø] Model 2 3 5 4 7 5 8 C [dm3/(s·bar)] 0.63 1.05 2.20 1.90 3.99 1.96 5.67 VX240 VX250 VX260 b Cv 0.63 0.68 0.39 0.52 0.44 0.55 0.33 0.23 0.41 0.62 0.62 1.08 0.75 1.58 Maximum operating pressure differential [MPa] 0.9 0.45 0.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 For Air Single Unit 4 N.O. Size 1 2 N.C. 5 N.O. Size 2 3 N.C. Size 3 6 N.O. A B C D E F H J K L M N A B D E H J L M A B C D E F G H J K L M N Orifice diameter 2 3 1/8 5 Aluminium 2 1/4 3 5 2 ø6 3 5 Resin∗ 2 3 ø8 1/4 Symbol 4 A B C D E F G H J K L M N P Q R S T U V W Y Z1A Z1B Z1C Z1U Z1D 7 Aluminium 4 3/8 7 4 ø8 7 Resin∗ 4 ø10 7 5 1/4 8 10 (N.C. only) Aluminium 5 3/8 8 10 (N.C. only) 1/2 10 (N.C.
Series VX21/22/23 For Air Manifold ∗ For the fluid other than air and medium vacuum, please contact SMC. Model/Valve Specifications N.C. Passage symbol 2 (OUT) 2 (OUT) 1 (IN) Common SUP type N.O. Passage symbol 2 (OUT) 2 (OUT) 1 (IN) Common SUP type Refer to “Glossary of Terms” on page 29 for passage symbols. Normally Closed (N.C.) Size Orifice diameter [mmø] Model 2 3 Maximum operating pressure differential [MPa] 1.0 b Cv 0.63 0.63 0.23 1.05 0.68 0.41 0.6 5 2.20 0.39 0.62 0.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 For Air Manifold RoHS Specifications How to Order (Solenoid Valve for Manifold) VX2 A 0 A A A Other option Fluid N.C. A B C N.O. NBR ∗1 For low concetration ozone resistant, select seal material FKM. 2 Resin For Air Size 1 A D Orifice diameter 3 5 Voltage/Electrical entry (coil insulation type: Class B) Size 2 B E Size 3 C F A B N.C. N.O. Resin A B N.C. N.O.
Series VX21/22/23 For Medium Vacuum Single Unit Model/Valve Specifications Passage symbol (Application example) Passage symbol (Application example) N.C. N.O. q Used with vacuum 1 w Used with pressure 2 1 q Used with vacuum 2 1 Refer to “Glossary of Terms” on page 29 for passage symbols. w Used with pressure 2 1 2 Refer to “Glossary of Terms” on page 29 for passage symbols. Normally Closed (N.C.) Size Port size 1 1/8, 1/4 Orifice diameter [mmø] Cv 0.63 0.63 0.23 0 to 1.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 For Medium Vacuum Single Unit Common Specifications VX2 1 4 A A A Seal material FKM Oil-free Non-leak Fluid 4 Medium vacuum 4 2 N.O. N.C. Size 2 5 3 N.O. N.C. Size 3 6 N.O. A B D E H J L M A B C D E F G H J K L M N P (Brass) Other option 3 Symbol Port thread — Standard (Rc) A G B NPT 5 C37 2 1/4 3 5 2 1/8 Stainless steel 2 1/4 3 5 1/4 C37 (Brass) Stainless steel 3/8 1/4 3/8 4 7 4 7 4 7 4 7 5 1/4 8 10 (N.C.
Series VX21/22/23 For Medium Vacuum Manifold ∗ For the fluid other than air and medium vacuum, please contact SMC. Model/Valve Specifications N.C. Passage symbol 1 (IN) 1 (IN) 2 (OUT) Individual SUP type N.O. Passage symbol 1 (IN) 1 (IN) 2 (OUT) Individual SUP type Refer to “Glossary of Terms” on page 29 for passage symbols. Normally Closed (N.C.) Size Orifice diameter [mmø] Model Flow-rate characteristics b Cv 0.63 0.63 0.23 1.05 0.68 0.41 0.6 5 2.20 0.39 0.62 0.2 4 1.90 0.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 For Medium Vacuum Manifold VX2 A 4 A A Common Specifications Seal material Fluid 4 Medium vacuum A B C Resin A B Resin A B Resin B E N.O. Size 3 C F N.O. N.C. N.C.
Series VX21/22/23 For Water Single Unit Model/Valve Specifications Passage symbol Passage symbol N.C. 1 N.O. 2 1 2EFER TO h'LOSSARY OF 4ERMSv ON PAGE FOR PASSAGE SYMBOLS 2 2EFER TO h'LOSSARY OF 4ERMSv ON PAGE FOR PASSAGE SYMBOLS Normally Closed (N.C.) Size Port size 1 1/8, 1/4 Orifice diameter [mmø] Model Flow-rate characteristics AV (x 10−6 m2) Conversion Cv 5.5 0.23 1 300 0.42 0.6 300 5 15.0 0.63 0.2 300 4 15.0 0.63 1 460 26.0 1.08 0.15 460 5 18.0 0.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 For Water Single Unit RoHS VX2 1 2 A A A Interchangeable with existing bracket 4 N.O. Size 1 2 N.C. Size 2 5 3 N.O. N.C. Size 3 6 N.O. A B C D E F H J K L M N A B D E H J L M A B C D E F G H J K L M N P Orifice diameter Other option Symbol Seal material ∗1 Oil-free 2 1/8 2 1/4 3 5 2 1/8 3 5 Stainless steel 2 1/4 3 5 1/4 C37 (Brass) 3/8 1/4 Stainless steel 3/8 4 7 4 7 4 4 7 8 10 (N.C. only) C37 (Brass) 5 3/8 8 10 (N.C.
Series VX21/22/23 For Oil Single Unit When the fluid is 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. Model/Valve Specifications Passage symbol Passage symbol N.C. 1 N.O.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 For Oil Single Unit VX2 1 3 A A A Common Specifications Seal material FKM Fluid N.O. 2 N.C. 5 N.O. Size 2 3 N.C. Size 3 6 N.O. A B D E H J L M A B C D E F G H J K L M N P 2 1/8 Other option 5 C37 (Brass) 3 Symbol Oil-free 2 1/4 — A B D E Z 3 5 2 1/8 3 5 Stainless steel 2 1/4 C37 (Brass) 3/8 1/4 Stainless steel 3/8 4 7 4 7 4 7 4 7 5 1/4 8 10 (N.C. only) C37 (Brass) 5 3/8 8 10 (N.C. only) 1/2 10 (N.C.
Series VX21/22/23 For Steam Single Unit ∗ Can be used with heated water. Model/Valve Specifications Passage symbol Passage symbol N.C. 1 N.O. 2 1 2 Refer to “Glossary of Terms” on page 29 for passage symbols. Normally Closed (N.C.) Size Port size Orifice diameter [mmø] Model 2 1 2 3 1/4, 3/8 AV (x 10 m ) Conversion Cv Maximum operating pressure differential [MPa] 1 Note) Weight [g] 300 0.23 0.42 0.6 300 5 15.0 0.63 0.2 300 4 15.0 0.63 1 460 26.0 1.08 0.15 460 5 18.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 For Steam Single Unit ∗ Can be used with heated water. VX2 1 5 A B A Common Specifications Seal material FKM for high temperature Fluid Interchangeable with existing bracket Steam ∗ Can be used with heated water. 4 2 N.O. N.C. Size 2 5 3 N.O. N.C. Size 3 6 N.O.
Series VX21/22/23 Construction/Single Unit Normally Closed (N.C.) Body material: AIuminium, C37(Brass), Stainless steel Body material: Resin q q w w e e r r t t y u Component Parts No. Description y OUT IN OUT IN u Component Parts Material No.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 Normally Closed (N.C.
Series VX21/22/23 For Air Dimensions/Body Material: Aluminium Grommet (with surge voltage suppressor) Grommet (DC) ≈ 300 D ≈ 300 F Q F D E E R C R C Q 2xP Port size B1 B A 2xP Port size B1 B DIN terminal A Conduit terminal Cable ø6 to ø12 Q S G1/2 F D D F 34 T C R R C 25 32 (44) 31.
Series VX21/22/23 Direct Operated 2 Port Solenoid Valve Air Specifications Dimensions/Body Material: Resin Grommet (with surge voltage suppressor) ≈ 300 D Q D F R C For Water X U For Oil X1 X1 U1 X U U1 2xP Port size B Y W 2 x ø3.4 Mounting hole Conduit terminal Q S For Steam DIN terminal Cable ø6 to ø12 F D D G1/2 F Q±2 34 T C R R C 25 32 31.5 (44) E 1.2 B1 2xP Port size B Y W 2 x ø3.4 Mounting hole E 1.2 B1 For Air F R C Q B E 1.
Series VX21/22/23 For Air Dimensions/Body Material: Resin Conduit ≈ 280 Faston terminal F D G1/2 Q 11 D F 2xP Port size B1 B 2xP Port size B1 B Y W E 1.2 E 1.2 R C R C 23 Q Y W Terminal part X U 1 2 3 One-touch fitting P B ø6, ø8 ø8, ø10 ø10, ø12 53.5 66 68 B1 29 36 37 C 65.5 (71.5) 76.5 (84.5) 84 (92) ( ): Denotes the Normally Open (N.O.) dimensions. 24 6.5 2 x ø3.4 Mounting hole D 30 35 40 E 13.5 15 16.5 20 22 24.
Series VX21/22/23 Direct Operated 2 Port Solenoid Valve Medium Water vacuum Oil Grommet Grommet (with surge voltage suppressor) 2 x ø5.3 Mounting hole X Q F D R A B1 A B 2xP Port size 2xP Port size X 2 x ø5.3 Mounting hole D F Cable ø6 to ø12 D G1/2 F 34 A S±2 A B1 2xP Port size E Y 1.5 E Y B1 B Dimensions C T 25 R 1.5 R C 32 31.5 Q±2 Construction Q S For Steam M W U X 2 x ø5.3 Mounting hole For Oil Conduit terminal M W U DIN terminal For Water 1.
Series VX21/22/23 For Medium Vacuum, Water, Oil Dimensions/Body Material: C37(Brass), Stainless Steel X F D G1/2 Q 11 F D A B B1 A B 2xP Port size 15 6.5 2xP Port size [mm] Size Port size 1 2 1/8, 1/4 1/4, 3/8 1/4, 3/8 1/2 3 Size 1 2 3 P A B B1 C D E F 19 22 22 29.5 43 45 45 50 21 22.5 22.5 25 61 (67) 74.5 (82.5) 79 (88) 85.5 30 35 40 40 9.5 10.5 10.5 14 20 22 24.5 24.
Direct Operated 2 Port Solenoid Valve Series VX21/22/23 Steam ∗ Can be used with heated water. Grommet Specifications Dimensions/Body Material: C37(Brass), Stainless Steel X 2 x ø5.3 Mounting hole For Air M W U M W U Conduit terminal X 2 x ø5.3 Mounting hole D (42) ≈ 40 F Q±2 34 F D For Medium Vacuum Q T A B1 2xP Port size X 2 x ø5.
Series VX21/22/23 For Medium Vacuum, Air Dimensions/Manifold/Base Material: Aluminium Stations D side 1 2 3 4 6 5 U side 7 Cable ø6 to ø12 G1/2 D E R4 R3 R2 R5 R , R6 T (44) G1/2 F F n x 1/8,1/4 OUT port (For common SUP type) IN port (For individual SUP type) 2 x 3/8 IN port (For common SUP type) OUT port (For individual SUP type) Plug∗ L2 K L1 K P F H 32 J ≈ 300 11 G1/2 ≈ 300 ≈ 280 Q4 S2 S1 Q3 Q5 Q2 Q1 Q6 A C D B N 2 x øM Mounting h
Series VX21/22/23 Glossary of Terms Pressure Terminology Others 1. Maximum operating pressure differential 1. Material The maximum pressure differential (the difference between the inlet and outlet pressure) which is allowed for operation. When the outlet pressure is 0 MPa, this becomes the maximum operating pressure. NBR: Nitrile rubber FKM: Fluoro rubber – Trade names: Viton®, Dai-el®, etc. 2. Oil-free treatment The degreasing and washing of wetted parts 2.
Series VX21/22/23 Solenoid Valve Flow-rate Characteristics 1 (How to indicate flow-rate characteristics) 1. Indication of flow-rate characteristics The flow-rate characteristics in equipment such as a solenoid valve, etc. are indicated in their specifications as shown in Table (1).
Solenoid Valve Flow-rate Characteristics Series VX21/22/23 C : Sonic conductance [dm3/(s·bar)] b : Critical pressure ratio [—] P1 : Upstream pressure [MPa] P2 : Downstream pressure [MPa] t : Temperature [°C] Note) Formula of subsonic flow is the elliptic analogous curve. Flow-rate characteristics are shown in Graph (1) For details, please make use of SMC’s “Energy Saving Program”. Example) Obtain the air flow rate for P1 = 0.4 [MPa], P2 = 0.
Series VX21/22/23 Solenoid Valve Flow-rate Characteristics 2 (How to indicate flow-rate characteristics) 2.
Solenoid Valve Flow-rate Characteristics Series VX21/22/23 2.3 Flow coefficient Cv factor The United States Standard ANSI/(NFPA)T3.21.3: 1990: Pneumatic fluid power—Flow rating test procedure and reporting method-For fixed orifice components Defines the flow coefficient, Cv factor by the following formula which is based on the test conducted by the test circuit analogous to ISO 6358. Cv = 114.
Series VX21/22/23 Solenoid Valve Flow-rate Characteristics 3 (How to indicate flow-rate characteristics) Conversion of flow coefficient: Av = 28 x 10−6 Kv = 24 x 10−6 Cv ……………………………………………(11) Here, Kv factor 3 3 2 Upstream pressure 2 P1 = 1 MPa P1 = 0.8 MPa 1 0.9 0.8 Example 2 P1 = 0.6 MPa 0.7 0.6 P1 = 0.5 MPa 0.5 0.4 1 0.9 0.8 0.7 0.6 0.5 P1 = 0.4MPa P1 = 0.3 MPa 0.4 Example 1 0.3 0.3 P1 = 0.2 MPa 0.2 0.2 P1 = 0.1 MPa 0.1 0.001 0.1 0.01 0.002 0.003 0.004 0.02 0.03 0.
Series VX21/22/23 Flow-rate Characteristics 1 Note) Use this graph as a guide. In the case of obtaining an accurate flow rate, refer to pages 30 through to 33. Downstream pressure of valve (P2) [MPa] For Air Upst 1.0 ream pres sure 0.8 of va lve P 1 ≈ 1.0 MPa Subsonic 0.9 0.6 cal Critissure e pr Sonic 0.8 0.7 0.4 0.6 0.5 0.4 0.2 0.3 0.2 0.
VX21/22/23 Series Flow-rate Characteristics 2 Note) Use this graph as a guide. In the case of obtaining an accurate flow rate, refer to pages 32 through to 35. Downstream pressure of valve (P2) [MPa] For Saturated Steam 1.0 (664) (183) Upst ream (663) (179) 0.8 pres sure (662) (174) of va lve P 1 ≈ 1.0 (661) (170) 0.6 Subsonic 0.9 (660) (164) 0.8 (658) (158) 0.4 MPa 0.7 (656) (151) cal Criti sure s e r p Sonic 0.6 0.5 (654) (143) 0.4 0.2 (650) (133) 0.3 0.
VX21/22/23 Specific Product Precautions 1 Series Be sure to read before handling. Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products” (M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control Precautions. Please download it via our website, http://www.smcworld.com Design Design Selection Warning 1. Cannot be used as an emergency shutoff valve, etc.
VX21/22/23 Specific Product Precautions 2 Series Be sure to read before handling. Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products” (M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control Precautions. Please download it via our website, http://www.smcworld.
VX21/22/23 Specific Product Precautions 3 Series Be sure to read before handling. Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products” (M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control Precautions. Please download it via our website, http://www.smcworld.com Recommended Piping Conditions Mounting Warning 5. Secure with brackets, except in the case of steel piping and copper fittings. 6.
VX21/22/23 Specific Product Precautions 4 Series Be sure to read before handling. Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products” (M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control Precautions. Please download it via our website, http://www.smcworld.com Operating Environment Warning Electrical Connections Caution Grommet Class B coil: AWG20 Outside insulator diameter of 2.5 mm Class H coil: AWG18 Outside insulator diameter of 2.
VX21/22/23 Specific Product Precautions 5 Series Be sure to read before handling. Refer to back cover for Safety Instructions, “Handling Precautions for SMC Products” (M-E03-3) and the Operation Manual for 2 Port Solenoid Valves for Fluid Control Precautions. Please download it via our website, http://www.smcworld.com Electrical Connections Electrical Circuits Caution Caution [DC circuit] Conduit terminal In the case of the conduit terminal, make connections according to the marks shown below.
Safety Instructions Caution: These safety instructions are intended to prevent hazardous situations and/or equipment damage. These instructions indicate the level of potential hazard with the labels of “Caution,” “Warning” or “Danger.” They are all important notes for safety and must be followed in addition to International Standards (ISO/IEC)∗1), and other safety regulations. Caution indicates a hazard with a low level of risk which, if not avoided, could result in minor or moderate injury.
