3 Port Air Operated Valve VPA3145/3165/3185 Series
Caution
- Product images may be representative images. Refer to the catalog for details.
Product Description
Air operated valve with large valve capacity and small exhaust resistance.
3 Port Air Operated Valve VPA3145/3165/3185 Series Specifications
VPA3165-06 external appearance
VPA3145-03 external appearance
JIS symbol (pressurized)
JIS symbol (vacuum)
Pilot Pressure Range
| Fluid | Air | |
|---|---|---|
| Switching Method | N.C. only (for vacuums: N.O. only) | |
| Operating Pressure Range | For vacuums and low pressures | General use |
| -101.2 kPa to 0.2 MPa | 0.2 to 0.8 MPa | |
| Pilot Pressure Range | See pilot pressure graph. | |
| Ambient and Working Fluid Temperature °C | 0 (no freezing) to 60 | |
| Lubrication | Required (turbine oil class 1 ISO VG32 equivalent) | |
| Mounting Orientation | Free | |
| *Impact/Vibration Resistance (m/s2) | 150/50 | |
*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 / Weight List
| Valve Model | Piping Connection Port Diameter | Flow Rate Characteristics | Weight (kg) | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 → 2 (IN → OUT) | 2 → 3 (OUT → EXH) | ||||||||
| 1 (IN), 2 (OUT) | 3 (EXH) | C (dm3/[s·bar]) | b | Cv | C (dm3/[s·bar]) | b | Cv | ||
| VPA3145 | 3/8 | 3/4 | 19 | 0.43 | 5.5 | 18 | 0.47 | 5.4 | 1.0 |
| 1/2 | 23 | 0.32 | 6.2 | 42 | 0.39 | 5.8 | |||
| 3/4 | 28 | 0.36 | 7.6 | 26 | 0.35 | 7.0 | |||
| Valve Model | Piping Connection Port Diameter | Effective area (mm2) | Weight (kg) | ||
|---|---|---|---|---|---|
| 1 (IN), 2 (OUT) | 3 (EXH) | 1 → 2 (IN → OUT) | 2 → 3 (OUT → EXH) | ||
| VPA3165 | 3/4 | 1 1/4 | 230 | 280 | 1.5 |
| 1 | 280 | 310 | |||
| 1 1/4 | 310 | 330 | |||
| VPA3185 | 1 1/4 | 2 | 570 | 650 | 2.3 |
| 1 1/2 | 650 | 670 | |||
| 2 | 650 | 670 | |||
Drawing
(Units: mm)
3 Port Air Operated Valve dimensional drawing
(Units: mm)
| Model | Piping Connection Port Diameter Rc | A | B | C | D | E | F | G | H | J | K | L | Mounting Hole | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| IN, OUT | EXH | |||||||||||||
| VPA3145 | 3/8 | 3/4 | 71 | 85 | 14 | 52 | 55 | 93 | 32 | 87.4 | 36 | 71 | 80 | øø8.5 mm |
| 1/2 | ||||||||||||||
| 3/4 | ||||||||||||||
| VPA3165 | 3/4 | 1 1/4 | 82.6 | 110 | 17 | 68 | 75 | 118 | 45 | 113 | 36 | 71 | 95 | øø8.5 mm |
| 1 | ||||||||||||||
| 1 1/4 | ||||||||||||||
| VPA3185 | 1 1/4 | 2 | 118 | 132 | 14 | 80 | 95 | 140 | 52 | 140 | 41 | 81 | 105 | øø13 mm |
| 1 1/2 | ||||||||||||||
| 2 | ||||||||||||||
Precautions
- *Be sure to read the safety precautions and common precautions sections in the SMC catalog before use.
- *Regarding lubrication: This valve is a lubricated type. Use turbine oil class 1 (ISO VG32).
- *See the SMC catalog for information on piping, relationships of pressure applied to each port, air quality, piping when using a vacuum, etc.