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3 Port Air Operated Valve VGA342 Series

3 Port Air Operated Valve VGA342 Series
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  • Product images may be representative images. Refer to the catalog for details.

Product Description

An air operated valve made by SMC.
[Features]
· Easy to switch between N.C. and N.O.

3 Port Air Operated Valve VGA342 Series Specifications

3 Port Air Operated Valve VGA342 Series external appearance

3 Port Air Operated Valve VGA342 Series external appearance

VGA342 Series JIS symbol (N.C.)

VGA342 Series JIS symbol (N.C.)

VGA342 Series JIS symbol (N.O.)

VGA342 Series JIS symbol (N.O.)

Operating MethodAir operated
Switching MethodN.C. or N.O. (changeable)
Return MechanismAir + spring
FluidAir
Operating Pressure Range0.2 to 0.9 MPa
Pilot PressureEqual to operating pressure
Ambient and Working Fluid Temperature-10°C to +50°C (no freezing.)
LubricationNot required (if lubricating, use turbine oil class 1 ISO VG32)
*Impact/Vibration Resistance150/50 m/s2

*Impact resistance: No malfunctions after testing using a drop-type shock tester under the following conditions: in the axial direction and at a right angle to the main valve with both pilot signal ON and OFF, once for each condition state. (Initial value)
Vibration resistance: No malfunctions occurred in a 1-sweep test between 45 and 1,000 Hz. The test was performed with both pilot signal ON and OFF and in the axial direction and at right angles to the main valve. (Initial value)

Flow Rate Characteristics Table

Piping Connection Port DiameterFlow Rate Characteristics
1 → 2 (P → A)2 → 3 (A → R)2 → 1 (A → R)3 → 2 (R → A)
C (dm3/[s·bar])bCvC (dm3/[s·bar])bCvC (dm3/[s·bar])bCvC (dm3/[s·bar])bCv
1/2260.387.0270.377.4270.367.3250.376.8
3/4380.309.8380.329.8400.229.8400.209.6
Piping Connection Port DiameterEffective area (mm2)
1 → 2 (P → A)2 → 3 (A → R)
1210235

Drawing

 

(Units: mm)

 

VGA342 Series dimensional drawing

VGA342 Series dimensional drawing

External Pilot Type Air Operated Valve VGA342R Series Specifications

VGA342R Series JIS symbol

VGA342R Series JIS symbol

Valve TypeExternal pilot type air operated valve
Switching MethodUniversal porting
FluidAir
Operating Pressure RangeMain Pressure-101.2 kPa to 0.9 MPa
Pilot PressureEqual to main pressure (min. 0.2 MPa or more)
External PilotEquivalent to pilot pressure
Ambient and Working Fluid Temperature-10°C to +50°C (no freezing.)
Weight1.2 kg

Drawing

 

(Units: mm)

 

VGA342R Series dimensional drawing

VGA342R Series dimensional drawing

Precautions

Changing Fluid Passage Condition / Piping Method

Illustrations showing changing of the fluid passage condition (left image: N.C. / right image: N.O.)

Illustrations showing changing of the fluid passage condition (left image: N.C. / right image: N.O.)

*Make sure that the pressure inside the valve is exhausted before changing the flow passage state.
Loosen the M4 × 0.7 hex socket head cap screw on the switch board and align the ▲ mark on the adapter plate with the required passage symbol (N.C./N.O.) on the switch plate. However, the X symbol cannot be used.
Moreover, follow the table on the right for piping.
Screw tightening torque M4: 1.4 N·m

Piping Method

PassagePort
PAR
N.C.Primary sideSecondary sideExhaust side
(Plug if using a 2 way valve)
N.O.Exhaust side
(Plug if using a 2 way valve)
Secondary sidePrimary side

*Use adequate caution and check it is safe when changing the fluid passage state or when starting up again afterwards.

Other

*The M5 hole on the left side of the adapter plate is the spool valve ventilation hole. Do not plug or obstruct it.

Part Number
VGA342-04TA
Part NumberPriceMinimum Order Qty.Volume DiscountDays to ShipSố ngày giao hàngSwitching Type Connection Type Plumbing Thread Nominal Valve type

3,483,200 VND

1 Piece(s) 32 Day(s) Normally ClosedNPTF1/2Internal pilot

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Basic InformationThông tin cơ bản

Type Air Operating Type Applicable Fluid Air Operating Environment Standard
Driving Type Pilot Type Pilot number Single Number of ports 3

Please check the type/dimensions/specifications of the part VGA342-04TA in the 3 Port Air Operated Valve VGA342 Series series.Vui lòng kiểm tra kiểu/kích thước/thông số kỹ thuật của phần VGA342-04TA trong chuỗi 3 Port Air Operated Valve VGA342 Series.

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