Specifications. Model Flow type Pressure type. Air Maximum operating pressure. 1.0 MPa Ambient and fluid temperature. 3% F.S.

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1 Electro-pneumatic proportional valve: Flow type (VEF) Controls the flow rate steplessly according to current. (It is a / port valve that has an electrical throttle valve function.) A model that is suitable for operating conditions, such as the number of ports or maximum effective area, can be selected. Electro-pneumatic proportional valve: ressure type (VE) Controls the pressure steplessly according to current. Also, because the effective fully opened area of the exhaust side is identical due to its construction, this valve provides a large exhaust capacity and can be used as a relief valve. (It is a port valve that has an electrical pressure reducing valve function.) Electro-neumatic roportional Valve Series VEF/VE Specifications Model Flow type ressure type VEF VEF VEF Item VEF VEF VE VE size Rc,,,,,,,, Fluid Air Maximum operating pressure.0 Ma Ambient and fluid temperature 0 to 50 C (With no condensation) Response time 0. s or less 0.05 s or less 0. s or less 0.05 s or less Hysteresis % F.S. Repeatability % F.S. Sensitivity 0.5% F.S. Linearity % F.S. or less Lubrication Not required (Use turbine oil Class, ISO VG, if lubricated.) Weight (kg) Note) The non-lubricated specification is not applicable to these models. VEF (Flow type) VEF (Flow type) VE (ressure type) VE (ressure type) VEF (Flow type) roportional Solenoid Specifications roportional solenoid recognition symbol (Applicable power : VEA5 ) Applicable power VEA5 Max. current A Coil resistance Ω (Ambient temperature 0 C) Rated power consumption W (Ambient temperature 0 C, with maximum current) Coil insulation type Class H or equivalent (0 C) Max. temperature 0 C (Ambient temperature 50 C, with maximum current) Electrical entry DIN terminal <Flow type> VEF 6 Applicable power Body size Body size Thread type F N T Rc G NT NTF How to Order Standard characteristics size Standard characteristics size Max. effective area (mm ) Without sub-plate / / / / / / / / Without sub-plate / / / / / <ressure type> VE Applicable power Flow type (VEF) () Standard Body size characteristics size Body size Standard characteristics size Set pressure range (Ma) 0.05 to 0.65Ma Without sub-plate 0 / 0. to 0.9Ma / / to 0.5Ma 0 / 06 / Flow type (VEF) (A) () (R) Note) Does not conform to ISO79-. Thread type F N T Rc G Note) NT NTF ressure() type (VE) (A) (R) (A)

2 Electro-neumatic roportional Valve Series VEF/VE Application Example Controlling pressure for die press cushion Electro-pneumatic proportional valve (ressure control vlave) Controlling welding pressure of welding machine electrode ower Electro-pneumatic proportional valve (ressure control valve) Regulator valve (VEX) ressurizing cylinder Electrode Low pressure die-casting Check valve Controlling pressure of low pressure die-casting ower with feedback circuit ressure sensor Cooler ower Regulator valve (VEX) Die cushion (Imagine air type shock absorber) Release valve Control circuit Control circuit Control circuit Regulator valve VEX Electro-pneumatic proportional valve VEX Controlling rotation of air motor Number of rotations Feedback Air motor Tachometer ower (Feedback circuit built-in type) Control circuit Electro-pneumatic proportional valve (Flow type, port) recautions How to Use DIN Terminal Caution Wiring procedure. Loosen the retaining screw and pull the connector from the pin plug.. Make sure to remove the retaining screw, insert the tip of a flat head screwdriver into the groove below the terminal block and pry it up to separate the terminal cover from the terminal block.. Securely connect the wires to the specified terminals in accordance with the wiring procedure. Wiring Terminal block Connection is not used for terminal and. Note) Coil has no polarity. in plug shape Applicable cable (Heavy-duty cable) 0.75 mm,.5 mm / core, core (O.D. ø6. to ø.5) based on JIS C and C Outlet changing procedure To change the wire outlet, first separate the terminal cover from the terminal block. Then, reinstall the terminal cover in the desired direction (in 90 increments). Be sure to read before handling. Refer to front matter for Safety Instructions and pages 65 to 69 for recautions on every series. Caution. Air supply oor quality air could increase the spool s sliding resistance, while preventing it from attaining its specified characteristics. Use compressor oil with a minimal generation of oxidants and install a mist separator (SMC s AM series). Refer to pages and. Avoid using ultra-dry air since it may reduce the amount of lubricant and shorten the service life.. Mounting Vibrations are transmitted to the valve by the proportional solenoid s dither. If it is necessary to prevent the transmission of vibrations, insert vibration isolating rubber material. Thoroughly flush the pipe to completely eliminate any dust or scales from the pipe inside. Controlling multispeed of cylinder Surge absorber ower Electro-pneumatic proportional valve Flow type ( port) Control circuit Install a silencer (AN series) on the exhaust port. Be careful with the molded coil because it generates heat while current is applied to it.. Lubrication This product can be used without lubrication. But if lubricated, use turbin oil Class, ISO VG (with no additive). It is impossible to use spindle oil, machine oil, or grease.. Manual operation To check the operation of the valve without applying a current, remove the lock nut and use a screwdriver or the like to press the tip of the core. After checking the operation, reinstall the rubber cap in its original position. revious Type VE F 0, VEA Caution VE F 0 must be used in conjunction with the power VEA. The previous VE F 0 cannot be used in combination with the current VEA5, and the current VE F cannot be used in combination with the previous VEA. 7 ARJ AR5 to 95 ARX AMR ARM AR IR IRV VEX SRH SR SRF VCHR ITV IC ITVX VQ VEF VE VER VEA VY VBA VBAT A00

3 Series VEF/VE Flow type: VEF Diagram of Working rinciple The spool controls the sleeve s opening through the balance between the proportional solenoid s pulling force (F) and the spring s reaction force (F). The spool moves in accordance with the amperage that is applied to the proportional solenoid, thus controlling the flow rate. Flow Characteristics: Fully open Flow rate Closed Fully open port (A) (R) control () (A) control () (A) control Note) port Current Note) The areas between port () and (A) and between port (A) and (R) will not equal the effective area of 0 mm (valve closed) at the same time. (Refer to the flow characteristics.) Effective area (mm ) Effective area (mm ) () (A) (R) Choked flow Q = 0 x S ( + 0.) t Q: Air flow rate [L/mi (ANR)] : Valve-inlet pressure [Ma] S : Effective area [mm ] t : Temperature [ C] F solenoid F spring Flow Characteristics: Controlled opening () (A) (R) Spool () (A) Sleeve (R) Effective area (mm ) Effective area (mm ) Choked flow Q = 0 x S ( + 0.) t Q: Air flow rate [L/mi (ANR)] : Valve-inlet pressure [Ma] S : Effective area [mm ] t : Temperature [ C]

4 Electro-neumatic roportional Valve Series VEF/VE ressure Type: VE Diagram of Working rinciple The control opening becomes closed when the solenoid's pulling force (F) balances with the force (F), which is created by the outlet pressure that passes through the feedback passage and acts on the spool surface. As a result, the outlet pressure is established. () F solenoid Sleeve Spool (A) (R) Current-ressure Characteristics The horizontal axis of the characteristics represents the output amperage of the power VEA555. (If NULL and GAIN are in the shipping condition, 0 to A can be viewed by substituting them with command signals 0 to 5 V.) Flow Characteristics Inlet pressure:.0 Ma ARJ AR5 to 95 ARX AMR ARM AR IR () (A) (R) Feedback passage (R) (A) Flow rate (L/min (ANR)) () (A) Inlet pressure:.0 Ma IRV VEX SRH ressure Characteristics JIS B 7 (In accordance with air regulator) SR () (A) (R) (Inlet pressure) (Outlet pressure) Set point SRF VCHR ITV IC ITVX Inlet pressure (Ma) VQ Inlet pressure (Ma) Set point (R) (A) Flow rate (L/min (ANR)) () (A) Inlet pressure: 0. Ma VEF VE VER VEA VY VBA VBAT A00 Set point (R) (A) Flow rate (L/min (ANR)) () (A) Inlet pressure (Ma) 9

5 Series VEF/VE Construction Flow type: VEF ( ) VEF ( ) ressure type: VE ( ) () (R) Flow type: VEF ( ) Flow type: VEF ( ) VEF ( ) ressure type: VE ( ) () (A) () (A) Component arts No. Description Material Note Body Sub-plate Spool Sleeve Mold coil Solenoid cap assembly Movable core assembly End cover Bush Set bushing Gasket Spring Spring seat O-ring O-ring O-ring Hex. socket head cap screw Hex. socket head cap screw Hex. socket head cap screw Lock nut Special stainless steel Special stainless steel Resin Brass Stainless steel/iano wire Brass Chromium-molybdenum Chromium-molybdenum Chromium-molybdenum Metallic painted Metallic painted Metallic painted Note) Does not conform to ISO79-. (R) F Sub-plate and Gasket for VE art No. wsub-plate!gasket size DXT7-7 size / /!7Hex. socket head cap screw (With SW) XT0-5D- (M x ) Thread type Thread type Rc F G Note) N NT T NTF

6 Electro-neumatic roportional Valve Series VEF/VE Dimensions Flow type: VEF, VEF ressure type: VE Flow type: VEF (A) 5 A () G/ x /, /, / 0 (A) () A G/ R (R) x ø5.5 Mounting hole 56 6 port: (R) plug Applicable cable O.D. ø6 to ø 5 50 x /, / 5 6 Applicable cable O.D. ø6 to ø lug 9 (A) 5.5 () (R) Flow type: VEF, VEF ressure type: VE port: (R) plug 5.5 x /, /, / R Applicable cable O.D. ø6 to ø G/ 6 5 ARJ AR5 to 95 ARX AMR ARM AR IR IRV VEX SRH SR SRF VCHR ITV IC ITVX VQ VEF VE VER x ø9 Mounting hole VEA VY VBA VBAT A00 x ø7 Mounting hole 5 9 A