Direct Air Operated 2 Port Valve VXA21/22 Series

Caution
- Product images may be representative images. Refer to the catalog for details.
Product Description
An air operated valve made by SMC.
[Features]
· For water, air and oil.
· Manifold type: VVXA21, VVXA22.
Direct Operated 2 Port Air Operated Valve VXA21/VXA22 Series: for Air, Single Unit / Manifold Specifications

VXA21/VXA22 Series: for air, single unit external appearance

VXA21/VXA22 Series: for air, manifold external appearance
Fluid Temperature and Ambient Temperature
Operating Fluid Temperature
- No mark, others: -5* to +60°C
- V, M: -5* to +40°C
*Dew point temperature: -5℃ or less
Ambient Temperature
- -5 to +40°C
Valve Leakage Rate
Internal/External Leakage, Seal Material: NBR, EPDM, FKM
- Air: 1 cm3/min or less
- Non-leak, medium vacuum*: 10-6 Pa·m3/sec or less
*The leakage amount is for options V and M non-leak and a medium vacuum.
Direct Operated 2 Port Air Operated Valve VXA21/VXA22 Series: for Water Specifications

VXA21/VXA22 series: for water, single unit external appearance
Fluid Temperature and Ambient Temperature
- Working fluid temperature (no mark, G, B, J): 1 to 40°C
- Ambient temperature: -5 to +40℃
*No freezing
Valve Leakage Rate
Seal: NBR, EPDM
- Internal/external leakage amount (water): 0.1 cm3/min or less
Direct Operated 2 Port Air Operated Valve VXA21/VXA22 Series: for Oil, Single Unit / Manifold Specifications

VXA21/VXA22 Series: for oil, single unit external appearance

VXA21/VXA22 Series: for oil, manifold external appearance
Fluid Temperature and Ambient Temperature
- Operating fluid temperature (A): -5* to +40°C
- Ambient temperature: -5 to +40℃
*Kinematic viscosity: 500 mm2/s or less.
Valve Leakage Rate
Internal/external leakage / seal material: FKM
- Internal/external leakage amount: 0.1 cm3/min or less
Drawing / Single Unit / Body Material: C37, SUS
(Units: mm)

N.C.: VXA21□0, VXA22□0 / N.O.: VXA21□2, VXA22□2 dimensional drawing
(Units: mm)
| Model | Orifice Diameter | Piping Connection Port Diameter P | A | B | C | D | E | F | G | H | J | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N.C. Type | N.O. Type | |||||||||||
| VXA21□0 | VXA21□2 | ø3 mm (orifice diameter), ø4.5 mm (orifice diameter) | 1/8, 1/4 | 19 | 40 | 9 | 54 | 63 | 27 | M4 | 6 | 12.8 |
| VXA22 (3, 4) 0 | VXA22 (3, 4) 2 | ø4.5 mm (orifice diameter), ø6 (orifice diameter) | 1/4, 3/8 | 22 | 45 | 10.5 | 60 | 69 | 32 | M5 | 8 | 19 |
| VXA22 (5, 6) 0 | VXA22 (5, 6) 2 | ø8 mm (orifice diameter), ø10 (orifice diameter) | 1/4, 3/8, 1/2 | 29 | 50 | 14 | 66 | 76 | 32 | M5 | 8 | 23 |
(Units: mm)

With bracket specification: orifice ø3 mm, ø4.5 mm, ø6 mm dimensional drawing
(Units: mm)

With bracket specification: orifice ø8 mm, ø10 mm dimensional drawing
(Units: mm)
| Model | Orifice Diameter | Piping Connection Port Diameter P | Bracket Mounting Dimensions | ||||
|---|---|---|---|---|---|---|---|
| N.C. Type | N.O. Type | K | M | N | Q | ||
| VXA21□0 | VXA21□2 | ø3 mm (orifice diameter), ø4.5 mm (orifice diameter) | 1/8, 1/4 | 46 | 36 | 11 | 15 |
| VXA22 (3, 4) 0 | VXA22 (3, 4) 2 | ø4.5 mm (orifice diameter), ø6 (orifice diameter) | 1/4, 3/8 | 56 | 46 | 13 | 17.5 |
Dimensions / Manifold / Body Material: Zn

Normally closed (N.C.) / normally open (N.O.): VVXA21, VVXA22 dimensional drawing 1

Normally closed (N.C.) / normally open (N.O.): VVXA21, VVXA22 dimensional drawing 2
(Units: mm)
| Model | Dimensions | Number of Stations | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||
| VVXA21 | L1 | 86 | 122 | 158 | 194 | 230 | 266 | 302 | 338 | 374 |
| L2 | 100 | 136 | 172 | 208 | 244 | 280 | 316 | 352 | 388 | |
| VVXA22 | L1 | 108 | 154 | 200 | 246 | 292 | 338 | 384 | 430 | 476 |
| L2 | 126 | 172 | 218 | 264 | 310 | 356 | 402 | 448 | 494 | |
(Units: mm)
| Model | A | B | (B) Individual pressure | C | D | E | F | H | J | K | M | N | Q |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VVXA21 | 38 | 20.5 | 17.5 | 10.5 | 11 | 25 | 32 | 36 | 12 | 7 | 43 | 52 | 6.5 |
| VVXA22 | 49 | 26.5 | 22.5 | 13 | 13 | 30 | 40 | 46 | 15 | 9 | 48 | 57 | 8.5 |
*See the SMC catalog for product information other than the above.