A variety of circuits in simple construction Intermediate and emergency stops with a large size cylinder

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Ezra York
5 years ago
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Power Valve 3 Position Valve Series VEX3 A variety of circuits in simple construction Intermediate and emergency stops with a large size cylinder System construction with VEX Conventional system

Cylinder Speed This table should be used as a guide only, because the cylinder speed is subject to the equipment in the piping.

1 Power Valve 3 Position Valve Series VEX3 A variety of circuits in simple construction Intermediate and emergency stops with a large size cylinder System construction with VEX Conventional system construction There were not many appropriate large capacity 5 port valves with a closed centre. There were not many appropriate large capacity port valves for stopping operations. Cylinder Speed This table should be used as a guide only, because the cylinder speed is subject to the equipment in the piping. For details,refer to the cylinder working capacity and maximum working speed data on p Body ported Base mounted VEX3-0, 0 VEX33-0,, VEX350 -, 06, 0 VEX370-0, VEX390-4, 0 VEX3-0, 0 VEX34-0,, Effective area mm (Nl/min ) 5(374) 0 ( ) 60(338) () 60(8735) 06 ( 3 4) 300(6685) 0() 590(3389) 4( ) 5(374) 0 ( ) 70(387) ( ) Condition: Pressure 0.5MPa, Load 50%, Piping length 5m Cylinder speed Bore size (mm) (mm/s) ø40 ø50 ø63 ø80 ø00 ø5 ø40 ø60 ø80 ø00 ø50 ø VEX 5.-0

How to Order Body size Body size 3 50 70 90 Port 0 0 0 06 0 0 4 0 P, A port R port 8 3 4 4 Body ported VEX3 0 0 B Base

pilot exhaust (P) port (Only solenoids) Body size Body size 4 Port P, A port R port 0 0 Without subplate 8 Without

2 How to Order Body size Body size Port P, A port R port Body ported VEX3 0 0 B Base mounted VEX3 0 0 B Operation 0 Air operated B F N Option Bracket (Except VEX33 ) Foot (Only VEX3, VEX33 ) Silencer for pilot exhaust (P) port (Only solenoids) Body size Body size 4 Port P, A port R port 0 0 Without subplate 8 Without subplate 0 Thread Rc(PT) T NPTF F G(PF) N NPT Caution Refer to p.0-33 to 0-36 for Safety Instructions and common precautions 5.-

Air operated Symbol Specifications Model Body ported Operation Fluid Proof pressure Set pressure Air operated range Ambient and fluid temperature Response time Max.

3 Air operated Symbol Specifications Model Body ported Operation Fluid Proof pressure Set pressure Air operated range Ambient and fluid temperature Response time Max. operating frequency Mounting Lubrication Port 0 Effective area Base mounted VEX3-0 P A R mm Nl/min VEX3-0 0 VEX ms or less (Pilot pressure 0.5MPa) VEX VEX370-0 VEX VEX34-0 Air operated Air.5MPa Low vacuum to.0mpa External pilot pressure 0. to.0mpa Max. 50 C (Air operated: 60 C) 60ms or less (Pilot pressure 0.5MPa) 3 cycles/s Free Not required (Use turbine oil No., lso VG3, if lubricated) Air operated Option Parts name Bracket (With bolt and washer) Foot (With bolt and washer) Pilot exhaust (P) port silencer B F N Part No. VEX3-0 0 VEX3-0 0 VEX33-0 VEX34-0 VEX VEX VEX VEX-8-A VEX-8-A VEX3-3-A 0-M VEX5-3A VEX7-3A VEX9-3A Weight (kg) Model VEX3-0 0 Air operated 0. VEX VEX VEX VEX VEX VEX VEX 5.-

Cylinder Speed System Flow Characteristics Max. Working speed When air is used, the flow characteristics are subject to P (Mpa), P (Mpa) P (Mpa), and the distinction between sonic and subsonic flow.

73 73 +θ VEX3 VEX33 VEX350 VEX370 VEX390.

4 Cylinder Speed System Flow Characteristics Max. Working speed When air is used, the flow characteristics are subject to P (Mpa), P (Mpa) P (Mpa), and the distinction between sonic and subsonic flow. qequation in the domain of subsonic flow. Calculation by effective area P(P+0.) 73 Q=6S.... G 73+θ l/min(r) wequation in the domain of sonic flow. Q=3S(P+0.) G External Pilot Piping θ VEX3 VEX33 VEX350 VEX370 VEX l/min(r) Q: Flow rate (l/min) P: Pressure differential (P P) P: Upstream pressure (MPa) P: Downstream pressure (MPa) G: Specific gravity (Air = ) θ: Temperature ( C) S: Effective area (mm ) System Solenoid Speed Fitting (One side) Silencer valve controller 4 pcs A T075 (ø0) DL0-0 VEX3 AS B T09 (ø) DL-0 C 3 AS T09 (ø) DL- VEX3 D 4 AS SGP B 90 elbow E AS SGP B 90 elbow F VEX350 AS SGP 3 4 B 90 elbow G AS SGPB 90 elbow H AS SGPB 90 elbow VEX370 I AS SGP B 90 elbow J AS SGP B 90 elbow VEX390 K AS SGPB 90 elbow Nylon tube No. Caution The cushion incorporated in the cylinder has a limit to the relationship between maximum working speed and load. Please check it with the cylinder catalog. When the load factor is 0% (no load), the maximum working speed will be. times, and when the load factor is 75%, it will be 0.7 times. VEX3 Port P P VEX3 0 External pilot External pilot VEX34 Solenoid for subplate VEX34 Air operated for subplate Caution When the VEX340 air operated power valve is delivered from our factory, the M5 threaded pilot ports P and P in the cover are open and the Rc/8 pilot port in the subplate is plugged. Before connecting pipes to P and P ports in the subplate, remove the /8 plug from the subplate and put M5 plugs into P and P ports in the cover. M5 plug - M-5P 5.-3

Construction/Operation Principles [](A) 3(R) [] Closed centre [3](P) (A) This is a 3 port switch valve in which the shaft - extending from the driving piston opens/closes a pair of poppet valves.

When neither the pilot solenoid valve a nor b are energized (or when air is exhausted both from the P and P ports of the air-operated style), no force will act on the working piston, and the spring

([]) When the pilot solenoid valve a is energised (or when pressurised air enters through the P port of the air operated style), pilot air that enters the space above the working piston pushes down

When the pilot solenoid valve b is energised (or when pressurised air enters through the P port of the air-operated style), the pilot air that enters the space under the working piston pushes the

5 Construction/Operation Principles [](A) 3(R) [] Closed centre [3](P) (A) This is a 3 port switch valve in which the shaft - extending from the driving piston opens/closes a pair of poppet valves. The poppet valve has a pressure balancing mechanism in which A port pressure is constantly applied from the back and the centre spring is acting as a backup. When neither the pilot solenoid valve a nor b are energized (or when air is exhausted both from the P and P ports of the air-operated style), no force will act on the working piston, and the spring closes the poppet valve, thus the valve assuming the closed centre position.([]) When the pilot solenoid valve a is energised (or when pressurised air enters through the P port of the air operated style), pilot air that enters the space above the working piston pushes down the piston and opens the lower poppet valve, thus connecting the P port and A port.([3]) The upper poppet valve continues to close the R port by means of pressure balance and the spring. When the pilot solenoid valve b is energised (or when pressurised air enters through the P port of the air-operated style), the pilot air that enters the space under the working piston pushes the piston upward and opens the upper poppet valve, thus connecting the A port and R port. ([]) The lower poppet valve continues to close the P port by means of pressure balance and the spring. VEX30(Air operated) VEX30(Air operated) VEX Construction (Component Parts) VEX330 (Air operated) VEX340 (Air operated) Component Parts No. q w e r t y u i o Description Body Cover Working piston Center spring Valve guide Poppet valve Shaft Manual override Sub-plate Material Aluminium alloy Aluminium alloy Aluminium alloy Stainless steel Aluminium alloy Aluminium alloy, NBR Stainless steel P.O.M Aluminium alloy 5.-4

6 Body Ported/VEX3 Air operated: VEX30 A perspective drawing Base mounted/vex3 Air operated: VEX

7 Body ported: VEX33 Air operated: VEX330 A perspective drawing Base mounted: VEX34 Air operated: VEX340 VEX 5.-6

8 Body ported/vex350 /370 Air operated: VEX3/3700 Dimensions VEX350 Dimensions Model A P, A port R port VEX350 Rc(PT), 3 4, 07 VEX370 Rc(PT), Rc(PT) 3 Body ported/vex390 B 96 C 6 30 D E F 5 30 G 0 5 Model VEX350 VEX370 H 5 5 a 0 0 J b K Bracket øc d L 45 5 M 60 8 e 5 N 7 95 f O.3.3 Air operated: VEX

Series VEX3 Manifold Manifold: Series VVEX Specifications Model VVEX VVEX4 Applicable valve VEX30, VEX3 VEX340, VEX34 Valve stations () to 8 to 6 Port specifications Common SUP, EXH Pilot Internal

8 Length of thread 5 P R A Blank plate VEX-7 VEX4-5 (With gasket, mounting bolt) (With gasket, mounting blot) Note ) When series VVEX is used with more than 5 stations, Series VVEX4 is used with more

9 Series VEX3 Manifold Manifold: Series VVEX Specifications Model VVEX VVEX4 Applicable valve VEX30, VEX3 VEX340, VEX34 Valve stations () to 8 to 6 Port specifications Common SUP, EXH Pilot Internal pilot, Common external pilot Common external pilot port size M5 X 0.8 Length of thread 5 P R A Blank plate VEX-7 VEX4-5 (With gasket, mounting bolt) (With gasket, mounting blot) Note ) When series VVEX is used with more than 5 stations, Series VVEX4 is used with more than 4 stations, apply pressure to the P port on both sides and exhaust from the R port on both sides. External Pilot Piping VVEX- VVEX4- VEX How to Order Manifold Base VVEX 6 0 Body size Pilot style Stations Valve Body size Pilot style Applicable Valve stations Port P R A stations Internal pilot Air operated: VEX30 () 6 6 stations 0 Common external pilot 8 8 stations Internal pilot stations A Air operataed: 4 4 VEX340 () B Common external pilot 6 6 stations C Thread Rc(PT) T NPTF F G(PF) N NPT Note) Air operated VEX 30 and VEX340 (air operated) are used. Distinction between the pilots (internal or external pilot) of the manifold base does not matter. Either may be used. Example of ordering a manifold base: The valve and blank plate for manifold arrangement should be specified in order from the left side of the manifold base (With the A port on your side). (Example) VVEX4--6-A VEX340 5 pcs. Air operated VEX4-5 pc. 5.-8

10 Manifold/VVEX VVEX- Applicable valve: VEX30 Valve mounting side Internal pilot Common external pilot L: Dimensions L L L n Equation L=3n+9, L+3n+4 n: Station

11 Manifold/VVEX4- VVEX4- Applicable valve: VEX340 VVEX4- Applicable valve: VEX340 VEX Valve mounting side Internal pilot Common external pilot n L L: Dimensions L L L=46n+3, L+46n+5 n: Station

Process Valve/Series VN The cylinder operation by external pilot air Can be operated with pressure differential zero.

For General Purpose /3 Port Valve Process Valve/Series VN The cylinder operation by external pilot air Can be operated with pressure differential zero. Wide variations Series For controlling pneumatic