Soft Start-up Valve Series AV2000/3000/4000/5000

Transcription

1 Soft Start-up Valve Series AV//4/ AV Start-up valve for low speed air supply to gradually raise initial pressure in an air system and for quick exhaust by cutting off air supply. Large effective area (mm ) AV/ (ody size: /4) AV/ 7 (ody size: /8) AV4/ (ody size: /) AV/ (ody size: /4) AV/ (ody size: ) Combination with F.R.L. unit F.R.L. combination Soft start-up valve AV AV AV4 (Except 4-) AV 4 With supply/exhaust function by manual operation Low power consumption Connectable with modular type F.R.L. combination unit F.R.L. combination Soft start-up valve AF AR AL AW A G AV AF8 AF9 4

2 Soft Start-up Valve AV//4/ How to Order Soft start-up valve AV G Flow direction Nil Left to right R Right to left CE compliance Nil Q Compliant Note ) Note ) G, grommet is not available. ody size 4 /4 /8 / /4, Manual override Nil: Non-locking push type (Flush) : Locking type (Tool required) C: Locking type (Lever) Thread type Nil F N 4 Rc G NPT Port size /4 (AV only) /8 (AV only) / (AV4 only) /4 (AV only) (AV only) Nil G Option None With pressure gauge How to Order Pilot Valve Assembly SF4 G 8 Coil rated voltage Light/Surge voltage suppressor Nil S Z V (/ Hz) V (/ Hz) to V (/ Hz) V (/ Hz) 4 VDC VDC 4V (/ Hz) Other None With surge voltage suppressor (Grommet type only) With light/surge voltage suppressor (Not possible with grommet type) Electrical entry G: Grommet Note ) D: Type D DIN terminal (With connector) DO: Type D DIN terminal (Without connector) Y: Type Y DIN terminal (With connector) G D Y DO YO Rated coil voltage V (/ Hz) V (/ Hz) to V (/ Hz) V (/ Hz) 4 VDC VDC 4 V (/ Hz) Other Electrical entry Grommet Note ) Type D DIN terminal (With connector) Type Y DIN terminal (With connector) Type D DIN terminal (Without connector) Type Y DIN terminal (Without connector) Note ) The grommet type can have a surge voltage suppressor (direct coupling type lead wire), but without indicator light. 4 Flow direction Nil Left to right R Right to left Manual override Nil C CE compliance Nil Q Compliant Note ) Note ) G, grommet is not available. Soft start-up valve Non-locking push type (Flush type) Locking type (Tool required) Locking type (Lever type) Light/Surge voltage suppressor Nil None S With surge voltage suppressor (Grommet type only) Z With light/surge voltage suppressor(not possible with grommet type) YO: Type Y DIN terminal (Without connector) Note ) The grommet type can have a surge voltage suppressor (direct coupling type lead wire), but without indicator light.

3 Soft Start-up Valve Series AV//4/ Specifications Type D DIN terminal Model Port size Proof pressure Operating pressure range Pressure gauge port size Ambient and fluid temperature Effective area (P) (A) (mm ) (A) (R) Mass (kg) Rated coil voltage Allowable voltage fluctuation Coil insulation type Apparent power Inrush (Current consumption) Energized Current consumption DC Electrical entry Option specifications Electrical specifications Pilot valve manual override AV /4 4.7 Piston Switching Pressure (Close AV / AV4 /. MPa. to MPa /8 to C () 7.74 AV /4. 4.4,, to, V (/ Hz), 4 V (/ Hz), 4 VDC to +% of rated voltage Equivalent to type ( C). VA ( Hz),. VA ( Hz).4 VA (. W)/ Hz,. VA (. W)/ Hz.8 W Grommet, Type D DIN terminal, Type Y DIN terminal Indicator light/surge voltage suppressor () Non-locking push type (Flush), Locking type (Tool required), Locking type (Lever) Note ) Use dry air when operating at a low temperature. Note ) The grommet type is equipped with a surge voltage suppressor (direct coupling type lead wire), but not an indicator light. Open). Type Y DIN terminal Outlet pressure (MPa) Inlet pressure (MPa) JIS Symbol (P) Accessory/Pressure Gauge Description Part no. Pressure range (R) (A) Pressure gauge G-- MPa Needle Valve Flow Characteristics Air flow rate (l/min (ANR)) Inlet pressure. MPa AV AV4 AV AV 4 Needle rotations 47 AF AR AL AW A G AV AF8 AF9

4 Series AV//4/ Working Principle 4 ON OFF - (P) (A) 7 (R) Working condition Pilot valve Pressure conditions Working description Pressure time chart (Meter-out control) example Cylinder drive circuit (Meter-out control) example Low speed supply High speed supply ON / PP > PA / PP PA When pilot valve is turned ON by energization or manual override, the pilot air pushes piston A and main valve downward and opens main valve while R port closes simultaneously. The air from P port moves to needle valve 7, where its flow is adjusted, and flows to A port. The meter-in control of needle valve 7 slowly moves the cylinder from A to. When / PP PA after the cylinder reaches, piston fully opens and PA increases rapidly as shown from C to D and becomes the same pressure as PP. Initial Operation Return Stroke Pressure stroke A PP PA Cylinder movement with fixed orifice PR (Atmospheric pressure) Time C D PP (P) PP (P) (R) PA (A) PA (A) Normal operation / PP PA Since piston holds the fully open condition, during normal operation the cylinder s speed will be controlled by the usual meter-out control. (R) Quick exhaust OFF When pilot valve is turned OFF, spring 4 pushes piston A and main valve upward and opens R port while shutting off the air supply from P port. The pressure difference generated at this time lets the check valve open and the residual pressure on the A port side is quickly exhausted from R port. (P) PP PA (A) (R) 48

5 Soft Start-up Valve Series AV//4/ Construction ON OFF 9 - (P) (A) (R) Component Parts No. Description ody Cap Cover Material Aluminum die-casted Aluminum die-casted Aluminum die-casted Replacement Parts No Description Pilot valve assembly Piston A assembly Piston assembly Main valve assembly Check valve Piston guide assembly Needle assembly Valve spring Piston spring Check spring Needle spring Type C retaining ring for shaft Type C retaining ring for hole Seal Seal O-ring Material POM, NR rass, NR (HNR) rass, NR (HNR) rass, NR (HNR) POM, NR rass, NR Steel wire Stainless steel Stainless steel Steel wire Tool steel Tool steel NR NR NR For How to Order pilot valve assembly, refer to page 4. AV P444A P44A P44A P447 P448A P449A P44 P44 P44 P444 G- -9 P44 P448 x 8 x Part no. AV AV4 SF4- -8 P444A P4444A P44A P444A P44A P444A P447 P4447 P448A P4448A P449A P4449A P44 P444 P44 P444 P44 P444 P444 P4444 STW- STW-8 - RTW- P44 P444 P44 P444 x 9 x. x 9. x. AV P444A P44A P44A P447 P448A P449A P44 P44 P44 STW- RTW- P44 P444. x. x AF AR AL AW A G AV AF8 AF9 49

6 Series AV//4/ Dimensions Grommet: AV - - G, GS DIN terminal: AV - - D, DZ DIN terminal for European use: AV - - Y, YZ I G A mm (Lead wire length) Manual override (Locking lever type) G L K A M Applicable cab tire cord O.D.: ø, ø8 Manual override (Locking lever type) With light/surge voltage suppressor Pressure gauge mounting bore /8 Port size ON OFF ON OFF Indicator light P Q N ø7 C A H P A Q H C ø7 R P 4 x R.8 E Pressure gauge mounting bore /8 R P 4 x R.8 E D D - + SMC MADE IN JAPAN - + SMC MADE IN JAPAN Model Port size A C D E G H I K L M N P Q R AV- - G AV- - GS AV- - D AV- - DZ AV- - Y AV- - YZ AV- - G AV- - GS AV- - D AV- - DZ AV- - Y AV- - YZ AV4-4- G AV4-4- GS AV4-4- D AV4-4- DZ AV4-4- Y AV4-4- YZ AV- - G AV- - GS AV- - D AV- - DZ AV- - Y AV- - YZ /4 /4 /4 /8 /8 /8 / / / /4, /4, /4, M4 x.7 Depth 4. M4 x.7 Depth 4. M4 x.7 Depth 4. M x.8 Depth M x.8 Depth M x.8 Depth M x Depth M x Depth M x Depth M x Depth 7. M x Depth 7. M x Depth 7. 44

7 Soft Start-up Valve Series AV//4/ Connecting Spacer for Modular Style F.R.L. Unit Select one of the spacers below when connecting to an F.R.L. combination unit ( to ). (Spacers must be ordered separately.) Spacer Spacer with bracket Y Y4 YT Y4T Model Y Y Y4 Y Applicable model AV AV AV4 AV Model YT YT Y4T YT Applicable model AV AV AV4 AV AF AR AL AW A G AV AF8 AF9 44

8 Series AV//4/ Specific Product Precautions e sure to read before handling. Refer to front matters 4 and 4 for Safety Instructions and pages 87 to 9 for F.R.L. Precautions. on Design. Actuator drive When using solenoid valve or actuator in the outlet side of this product, implement appropriate measures to prevent potential danger caused by actuator operation.. Holding pressure Since the valve might have slight interal leakage, it is not suitable for holding pressure in a tank or another vessel for a long period of time.. Maintenance space Allow the sufficient space for maintenance and inspection. Selection. Confirm the specifications. The products presented in this catalog are designed only for use in compressed air systems. Do not operate at pressures or temperatures, etc., beyond the range of specifications, as this can cause damage or malfunction. (Refer to specifications.) Please contact SMC if using for other fluids than compressed air.. Extended periods of continuous energization Please contact SMC if valves will be continuously energized for extended periods of time.. Operation of closed center solenoid valves Even if this product is used for closed center solenoid valves or actuator with a load factor of more then %, jumping (stick-slip phenomenon) cannot be prevented. 4. Using a regulator in the outlet side When mounting a regulator in the outlet side (A port side), use a residual pressure relief regulator (ARK to 4K) or a check type regulator. With a standard regulator (AR to ), the outlet side pressure may not be released when this valve is exhausted.. Operation of solenoid valves in the outlet side To operate solenoid valves mounted on this product s outlet side (A port side), first confirm that the outlet side s pressure (PA) has increased to become equal to the inlet side s pressure (PP).. Operation The residual pressure release function of this product is for emergency use only; therefore, avoid the operation in the same manner as ordinary port valves. 7. Using a lubricator If mounting a lubricator, mount it on the inlet side (P port side), of this product. If mounted on the outlet side (A port side), back flow of oil will occur and may spurt out of the valve s R port. 8. Operation for air blowing This product cannot be operated for air blowing due to the mechanism that switches the main valve to be fully open after the outlet side s pressure increases to approximately / of the inlet side. Selection. Voltage leakage Particularly when using a C-R element (surge voltage suppressor) for protection of the switching element, use cation that leakage voltage will increase due to leakage current flowing through the C-R element, etc. Power supply Switching element OFF Resistor Leakage current coil is % or less of rated voltage. DC coil is % or less of rated voltage.. Low temperature operation Although the valve can be operated at temperature as low as C, measures should be taken to avoid solidifying or freezing drainage and moisture, etc. Leakage voltage Mounting. If air leakage increases or equipment does not operate properly, stop operation. After mounting or maintenance, etc., connect the compressed air and power supplies, and perform appropriate function and leakage tests to confirm that the unit is mounted properly.. Instruction manual Mount and operate the product after reading the manual carefully and understanding its contents. Also keep the manual in a place where it can be referred to as necessary.. Painting and coating s or specifications printed or labeled on a product should not be erased, removed or covered up. Furthermore, please contact SMC before painting the resin parts, as this may cause adverse effects depending on the solvent. Adjustment. To perform the initial speed adjustment of a outlet side actuator, supply air from this valve s inlet side and turn ON the pilot valve. Then, rotate the needle counterclockwise from the fully closed position. Valve 44

9 Series AV//4/ Specific Product Precautions e sure to read before handling. Refer to front matters 4 and 4 for Safety Instructions and pages 87 to 9 for F.R.L. Precautions. Piping. Preparation before piping efore piping is connected, it should be thoroughly blown out by air (flushed) or washed to eliminate cutting chips, cutting oil, and other debris from the pipe inside.. How to wrap a pipe tape When connecting pipes and fittings, etc., ensure that cutting chips and sealing materials from the pipe threads should not get inside the valve. When a pipe tape is used, leave. to thread ridges exposed at the end of the pipe. Winding direction Pipe tape Light/Surge Voltage Suppressor Tightening Torque when Piping Connection threads Rc /4 Rc /8 Rc / Rc /4 Rc Expose approx. threads Voltage and VDC 4 VDC or less Electrical circuit Terminal no. (+) ZNR With indicator light Terminal no. ( ) Terminal no. + ( ) +( ) -(+) Electrical Connection ZNR With indicator light Terminal no. (+) Note) There is no polarity (+ or ) The internal connection of the DIN terminal is as shown below, connect to the power supply side as shown.. Tighten threads with the proper tightening torque. When screwing fittings into valves, tighten with the torques given below. Proper tightening torque (N m) to 4 to 4 8 to 8 to to 8 Terminal DIN terminal DIN terminal + 4. Piping to products When piping to products, avoid making an error of supply port, etc., by referring to the instruction manuals.. F.R.L. module combination When connecting to a modular F.R.L. combinations ( to ), select one of the spacers, which are included. (Refer to page 44 for details.) However, modular combinations with 4- are not possible. Furthermore, connect soft start-up valves to the outlet side of the F.R.L. combination.. Inlet side piping conditions The nominal size of the piping material s or equipment s bore should be equal to or larger than the soft start-up valve s port size. The composite effective area of the inlet side s (P port side s) piping or equipment should be equal to or larger than the values below. Model AV AV AV4 AV Composite effective area (mm ) When the piping is restricted or the supply pressure is insufficient, the main valve will not switch and air leakage may occur from the R port. Lubrication. The valve has been lubricated for life at the factory, and does not require any further lubrication.. Use turbine oil Class, ISO VG (with no additives), if lubricated. esides, if the lubrication is suspended halfway, the original lubricant will be lost and may result in a malfunction. e sure to keep lubricating continuously. Refer to the brand name table given below for lubricants by each company, comforming to turbine oil Class (with no additives), ISO VG. Turbine Oil Class (With no additives), ISO VG Viscosity classification cst (4 C) ISO viscosity grade Idemitsu Kosan Co.,Ltd. Turbine oil P- Turbine oil, Nippon Mitsubishi Oil Corp. Mitsubishi Turbine Cosmo Oil Co.,Ltd. Cosmo turbine Japan Energy Corp. Kyodo turbine Viscosity classification cst (4 C) ISO viscosity grade Kygnus Oil Co. Turbine oil Kyushu Oil Co. Stork turbine Showa Shell Sekiyu K.K. Turbine Tonengeneral Sekiyu K.K. General R turbine Fuji Kosan Co.,Ltd. Fucoal turbine Please contact SMC regarding turbine oil Class (with additives), ISO VG. AF AR AL AW A G AV AF8 AF9 44

10 Series AV//4/ Specific Product Precautions e sure to read before handling. Refer to front matters 4 and 4 for Safety Instructions and pages 87 to 9 for F.R.L. Precautions. Air Supply. Use clean air. Do not use compressed air which contains chemicals, synthetic oils containing organic solvents, salts or corrosive gases, etc., as this can cause damage or malfunction.. Install air filters. Install air filters close to valves at their upstream side. A filtration degree of μm or less should be selected.. Implement countermeasures by installing aftercooler or air dryer, or water separator, etc. The air including excess drain may result in a malfunction of valves and other pneumatic equipment. Implement countermeasures by installing after-cooler or air dryer, or water separator, etc. Operating Environment. Do not use valves in such environments where corrosive gases, chemicals, or brine or water or steam is airborne, or where valves can be directly exposed to any of those.. Do not use in an explosive environment.. Do not use in locations influenced by vibrations or impacts. 4. A protective cover, etc., should be used to shield valves from direct sunlight.. Shield valves from radiated heat generated by nearby heat sources.. Take suitable protective measures in locations where there are contacts with water droplets, oil, or welding spatter, etc. 7. In a dusty environment or when valve switching noise is intrusive, install a silencer in the R port to prevent dust from entering, and to reduce noise. Maintenance. Perform maintenance and inspection as shown in the instruction manual. If handled improperly, damage may occur in machine or equipment or an operational error may result in.. Equipment removal and supply/exhaust of compressed air When equipment is removed, first confirm that measures are implemented to prevent dropping of workpiece and runaway of equipment, etc. Then cut the supply pressure and power, and exhaust all compressed air from the system using its residual pressure release function.. Low frequency operation Valves should be switched at least once every days to prevent malfunction. (Use caution regarding the air supply.) 4. Manual override operation When the manual override is operated, connected equipment will be actuated. Confirm the safety before operating.. Drain removal Remove drain from air filters periodically. How to Find the Flow Rate Choke flow: (P +.)/(P +.). Q = x S x (P +.) x t Subsonic flow: when (P +.)/(P +.) >. Q = 4 x S x (P P)(P +.) x Q: Air flow rate [l/min (ANR)] S: Effective area (mm ) P: Inlet pressure [MPa] P: Outlet pressure [MPa] t: Air temperature [ C] (At air temperature of C) t Note ) Formulas above are applied to pneumatics only. 444