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An air operated valve made by SMC.
[Features]
· Internal pilot specification manifolds that are the same as for VP300/500/700 series are available.
· Easy to switch between N.C. and N.O.
Part Number
Configured Part Number is shown.

VPA300 Series external appearance

VPA500 Series external appearance

VPA700 Series external appearance
| Fluid | Air | |
|---|---|---|
| Switching Method | N.C. or N.O. (changeable) | |
| Operating Pressure Range (MPa) | Standard | 0.2 to 1.0 |
| For vacuums | -100 kPa to 0.2 | |
| Pilot Pressure (MPa) | 0.2 to 1.0 (equal to or exceeding the operating pressure) | |
| Ambient and Working Fluid Temperature °C | -10 to +50 (no freezing.) | |
| Lubrication | Not required | |
| Mounting Orientation | Free | |
| Impact/Vibration Resistance (m/s2*) | 300/50 | |
*Impact resistance: No malfunctions after testing 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 2,000 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)
| Model | Piping Connection Port Diameter | 1 ←→ 2 (P ←→ A) | 2 ←→ 3 (A ←→ R) | Weight (g)* | ||||
|---|---|---|---|---|---|---|---|---|
| C [dm3/(s·bar)] | b | Cv | C [dm3/(s·bar)] | b | Cv | |||
| VPA344 | 1/8 | 3.6 | 0.22 | 0.8 | 3.5 | 0.24 | 0.8 | 185 (118) |
| 1/4 | 3.9 | 0.22 | 0.9 | 3.8 | 0.14 | 0.9 | 180 (118) | |
| VPA544 | 1/4 | 7.5 | 0.16 | 1.7 | 7.3 | 0.20 | 1.7 | 358 (233) |
| 3/8 | 8.8 | 0.07 | 2.0 | 8.8 | 0.13 | 2.0 | 350 (233) | |
| VPA744 | 3/8 | 12.9 | 0.10 | 2.9 | 13.3 | 0.24 | 3.1 | 693 (476) |
| 1/2 | 14.7 | 0.05 | 3.3 | 15.0 | 0.17 | 3.4 | 675 (476) | |
*Values in ( ) are for without sub-plate.

Standard type diagram

For vacuums - diagram
Component Parts
| Number | Part Name | Material | Notes |
|---|---|---|---|
| 1 | Body | Diecast aluminum | Urban white |
| 2 | Adapter Plate | Diecast aluminum | Urban gray |
| 3 | End Plate | Resin | Urban white |
| 4 | Piston | Resin | - |
| 5 | Poppet Valve | Aluminum, HNBR | - |
| 6 | Retainer | Resin | - |
| 7 | Spring | SUS | - |
Replacement Parts
| Number | Part Name | Part number | Notes | ||
|---|---|---|---|---|---|
| VP344 | VP544 | VP744 | |||
| 8 | Gasket | VP300-217-1 | VP500-217-1 | VP700-217-1 | HNBR |
| 9 | Sub-Plate | VP300-202-□ | VP500-202-□ | VP700-202-□ | Diecast aluminum |
| - | Hexagon socket head cap screw (1 pc.) | VP300-224-1 (M3 × 36) | VP500-224-1 (M4 × 46) | VP700-224-1 (M5 × 66) | For valve mounting |
*Mounting screw tightening torque: M3 (0.8 N·m) / M4 (1.4 N·m) / M5 (2.9 N·m)
(Units: mm)

Standard type: VPA344-1-01/02□A/B dimensional drawing
(Units: mm)

For vacuums: VPA344V-1-01/02□A/B dimensional drawing
(Units: mm)

Standard type: VPA544-1-02/03□A/B dimensional drawing
(Units: mm)

For vacuums: VPA544V-1-02/03□A/B dimensional drawing
(Units: mm)

Standard type: VPA744-1-03/04□A/B dimensional drawing
*See the SMC catalog for information other than that detailed above.
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Applicable Fluid | Plumbing Thread Nominal | Switching Type | Driving Type | Connection Type | Detailed type | Valve type |
|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 360.23 | 1 Piece(s) | 5 Day(s) or more | Air | 1/8 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
MYR 482.50 | 1 Piece(s) | 21 Day(s) | Air | 1/8 | Normally Open | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/8 | Normally Closed | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/8 | Normally Open | Pilot Type | G | - | Base mounted | ||
MYR 482.50 | 1 Piece(s) | 21 Day(s) | Air | 1/8 | Normally Closed | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/8 | Normally Open | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/8 | Normally Closed | Pilot Type | NPTF | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/8 | Normally Open | Pilot Type | NPTF | - | Base mounted | ||
MYR 388.97 | 1 Piece(s) | 3 Day(s) | Air | 1/4 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
MYR 392.98 | 1 Piece(s) | 10 Day(s) or more | Air | 1/4 | Normally Open | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Closed | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Open | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Closed | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Closed | Pilot Type | NPTF | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Open | Pilot Type | NPTF | - | Base mounted | ||
MYR 346.62 | 1 Piece(s) | 43 Day(s) | Air | - | Normally Closed | Pilot Type | - | - | Base mounted type / without sub-plate | ||
MYR 429.97 | 1 Piece(s) | 21 Day(s) | Air | - | Normally Open | Pilot Type | - | - | Base mounted type / without sub-plate | ||
MYR 535.02 | 1 Piece(s) | 21 Day(s) | Vacuum | 1/8 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/8 | Normally Open | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
MYR 535.02 | 1 Piece(s) | 21 Day(s) | Vacuum | 1/8 | Normally Closed | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/8 | Normally Closed | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/8 | Normally Closed | Pilot Type | NPTF | - | Base mounted | ||
MYR 422.88 | 1 Piece(s) | 23 Day(s) or more | Vacuum | 1/4 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/4 | Normally Open | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/4 | Normally Closed | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/4 | Normally Closed | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/4 | Normally Open | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/4 | Normally Closed | Pilot Type | NPTF | - | Base mounted | ||
MYR 388.97 | 1 Piece(s) | 43 Day(s) | Vacuum | - | Normally Closed | Pilot Type | - | - | Base mounted type / without sub-plate | ||
MYR 482.50 | 1 Piece(s) | 21 Day(s) | Vacuum | - | Normally Open | Pilot Type | - | - | Base mounted type / without sub-plate | ||
MYR 454.39 | 1 Piece(s) | 10 Day(s) or more | Air | 1/4 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
MYR 588.87 | 1 Piece(s) | 21 Day(s) | Air | 1/4 | Normally Open | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Closed | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Open | Pilot Type | G | - | Base mounted | ||
MYR 588.87 | 1 Piece(s) | 21 Day(s) | Air | 1/4 | Normally Closed | Pilot Type | NPT | - | Base mounted | ||
MYR 588.87 | 1 Piece(s) | 21 Day(s) | Air | 1/4 | Normally Open | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Closed | Pilot Type | NPTF | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 1/4 | Normally Open | Pilot Type | NPTF | - | Base mounted | ||
MYR 433.18 | 1 Piece(s) | 5 Day(s) or more | Air | 3/8 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
MYR 588.87 | 1 Piece(s) | 21 Day(s) | Air | 3/8 | Normally Open | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
MYR 454.09 | 1 Piece(s) | 10 Day(s) or more | Air | 3/8 | Normally Closed | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 3/8 | Normally Open | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 3/8 | Normally Closed | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 3/8 | Normally Open | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Air | 3/8 | Normally Closed | Pilot Type | NPTF | - | Base mounted | ||
MYR 396.77 | 1 Piece(s) | 23 Day(s) or more | Air | - | Normally Closed | Pilot Type | - | - | Base mounted type / without sub-plate | ||
MYR 515.17 | 1 Piece(s) | 21 Day(s) | Air | - | Normally Open | Pilot Type | - | - | Base mounted type / without sub-plate | ||
MYR 641.40 | 1 Piece(s) | 21 Day(s) | Vacuum | 1/4 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
MYR 641.40 | 1 Piece(s) | 21 Day(s) | Vacuum | 1/4 | Normally Open | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/4 | Normally Closed | - | G | VPA500 | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 1/4 | Normally Open | Pilot Type | G | - | Base mounted | ||
MYR 491.35 | 1 Piece(s) | 10 Day(s) or more | Vacuum | 3/8 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
MYR 641.40 | 1 Piece(s) | 21 Day(s) | Vacuum | 3/8 | Normally Open | Pilot Type | [Rc (R)] Rc | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 3/8 | Normally Closed | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 3/8 | Normally Open | Pilot Type | G | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 3/8 | Normally Closed | Pilot Type | NPT | - | Base mounted | ||
- | 1 Piece(s) | Quote | Vacuum | 3/8 | Normally Closed | Pilot Type | NPTF | - | Base mounted | ||
MYR 567.70 | 1 Piece(s) | 21 Day(s) | Vacuum | - | Normally Closed | Pilot Type | - | - | Base mounted type / without sub-plate | ||
- | 1 Piece(s) | Quote | Vacuum | - | Normally Open | Pilot Type | - | - | Base mounted type / without sub-plate | ||
MYR 638.19 | 1 Piece(s) | 5 Day(s) or more | Air | 3/8 | Normally Closed | Pilot Type | [Rc (R)] Rc | - | Base mounted |
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| Type | Air Operating Type | Operating Environment | Standard / No oil | Pilot number | Single |
|---|---|---|---|---|---|
| Number of ports | 3 |
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