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High Purity Chemical Liquid Valve, Air Operated Threaded Type LVA Series (LVA30-03-B4)
An air operated valve made by SMC.
[Features]
· Guide ring prevents internal leakage
· Diaphragm (PTFE) prevents formation of micro-bubbles
· Prevents residual liquid
· Body with outstanding corrosion resistance (New PFA)
(i)Caution
- Product images may be representative images. Refer to the catalog for details.
Part Number
Configured Part Number is shown.
LVA30-03-B4
High Purity Chemical Liquid Valve, Air Operated Threaded Type LVA Series Specifications
LVA Series: basic type external appearance
LVA Series: LVA-Z (pilot port: 1/8) external appearance
LVA Series: flow rate adjustment equipped external appearance
| Model | LVA10 | LVA20 | LVA30 | LVA40 | LVA50 | LVA60 | |
|---|---|---|---|---|---|---|---|
| Orifice Diameter | ø2 mm | ø4 mm | ø8 mm | ø12 mm | ø20 mm | ø22 mm | |
| Piping Connection Port Diameter | 1/8, 1/4 | 1/8, 1/4 | 1/4, 3/8 | 3/8 / 1/2 | 1/2 / 3/4 | 1 | |
| Flow Rate Characteristics | Kv | 0.06 | 0.3 | 1.4 | 2.8 | 5.1 | 6.8 |
| Cv | 0.07 | 0.35 | 1.7 | 3.3 | 6 | 8 | |
| Withstand Pressure (MPa) | 1 | ||||||
| Operating Pressure (MPa) | A → B | 0 to 0.5 | (-94 kPa)*3 0 to 0.5 | (-94 kPa)*3 0 to 0.4 | |||
| B → A | 0 to 0.05 | (-94kPa)*3 0 to 0.2 | (-94kPa)*3 0 to 0.1 | ||||
| Back Pressure (MPa) | N.C./N.O*2 | 0.15 or less | 0.3 or less | 0.2 or less | |||
| Double Acting | 0.3 or less | 0.4 or less | 0.3 or less | ||||
| Valve Leakage Rate (cm3/min) | 0 (with hydraulic pressure) | ||||||
| Pilot Operation Pressure (MPa) | 0.3 to 0.5 | ||||||
| Pilot Port Diameter | Standard | M5 | M5*4 | Rc 1/8, NPT 1/8, G 1/8 | |||
| -Z Type*5 | - | Rc 1/8, NPT 1/8, G 1/8 | - | ||||
| Fluid Temperature (°C) | 0 to 100*1 | ||||||
| Ambient Temperature (°C) | 0 to 60 | ||||||
| Weight (kg) | SUS | 0.12 | 0.18 | 0.44 | 0.86 | 1.67 | 1.96 |
| PPS | 0.05 | 0.08 | 0.18 | 0.32 | 0.73 | - | |
| PFA | 0.05 | 0.09 | 0.20 | 0.35 | 0.78 | 0.90 | |
*1: 0 to 60°C when diaphragm is NBR/EPDM.
*2: N.O. type not available for LVA10.
*3: If using with a vacuum, select products with a product number ending in -V. Cannot be used for vacuum retention. Moreover, using the B port side as the vacuum source may shorten the product lifespan.
*4: Applicable to LVC21 (N.O.) and LVC22 (double acting) types.
*5: Applicable to LVC20 (N.C.) -Z type.
Product Dimensions
Body material: SUS
LVA20 dimensional drawing
LVA1□/LVA21/LVA22/LVA3□ to 6□ dimensional drawing
(Units: mm)
| Model | A | B | C | E | F | G | H | K | L | N | O | P | Q | R | T |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LVA1□ | 20 | 33 | 49.5 | 10 | M5 × 0.8 × 4 | 27.5 | 11 | - | 13 | 27.5 | - | Rc 1/8, 1/4 NPT 1/8, 1/4 G 1/8, 1/4 * | M5 × 0.8 | ø4.2 mm | - |
| LVA20 | 30 | 33 | 54.2 | 10 | M5× 0.8 × 5 | 31.5 | - | 22 | 22 | 26.5 | 14.8 | Rc 1/8 NPT 1/8 G 1/8 * | ø2.4 mm | 20 | |
| LVA21 LVA22 | 30 | 33 | 57 | 10 | M5× 0.8 × 5 | 31 | 13 | 22 | 22 | 26 | - | M5 × 0.8 | M3 × 0.5 | - | |
| LVA3□ | 36 | 47 | 78.6 | 13 | M6 × 1.0 × 8 | 42.5 | 17.5 | 37 | 26 | 38.5 | - | Rc 1/4, 3/8 NPT 1/4, 3/8 G 1/4, 3/8* | Rc 1/8 NPT 1/8 G 1/8 * | Rc 1/8 NPT 1/8 G 1/8 * | - |
| LVA4□ | 46 | 60 | 95.4 | 16 | M8 × 1.25 × 10 | 54.5 | 18 | 47.5 | 33.5 | 47.5 | - | Rc 3/8, 1/2 NPT 3/8, 1/2 G 3/8, 1/2* | - | ||
| LVA5□ | 58 | 75 | 122.5 | 19 | M8 × 1.25 × 10 | 61.5 | 27.5 | 60 | 43 | 55.5 | - | Rc 1/2, 3/4 NPT 1/2, 3/4 G 1/2, 3/4* | - | ||
| LVA6□ | 58 | 85 | 129.8 | 24 | M8 × 1.25 × 10 | 68.8 | 27.5 | 60 | 43 | 62.8 | - | Rc 1 NPT1 G1 * | - |
*Refer to the SMC catalog regarding G thread / thread depth.
With flow rate adjustment: LVA20 dimensional drawing
- LVA2□: S / 14.5 mm
- LVA3□: S / 24.4 mm
- LVA4□: S / 29 mm
- LVA5□: S / 34.5 mm
- LVA6□: S / 36 mm
With indicator: LVA20 dimensional drawing
- LVA20: W / 63.7 mm
- LVA30: W / 89.1 mm
- LVA40: W / 109.9 mm
- LVA50: W / 140.5 mm
- LVA60: W / 147.8 mm
Product Diagram
Standard type: N.C. type diagram
With flow rate adjustment type diagram
With indicator type diagram
| Number | Part Name | Material | Option |
|---|---|---|---|
| 1 | Actuator Section | PPS | PVDF |
| 2 | Body | SUS | - |
| PPS | |||
| PFA | |||
| 3 | Diaphragm | PTFE | - |
| NBR | |||
| EPR | |||
| 4 | End Plate (PFA Body only) | PPS | PVDF |
| 5 | Flow Rate Adjuster | PPS | - |
| 6 | Indicator | PP | - |
Precautions
- *Do not use metal fittings with a resin body (taper threads). This will cause damage to the valve body.
- *Do not use if air leakage increases or the equipment does not operate correctly. After mounting, perform suitable function and leak tests to confirm that the mounting is correct.
- *Mount and use the product only after reading and understanding the contents of the instruction manual. Be sure to keep the manual somewhere handy so that it can be referred to whenever needed.
- *Be sure to read the individual product precautions before use.
- *See the SMC catalog for product information other than the above.
| Part Number |
|---|
| LVA30-03-B4 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Applicable Fluid | Operating Environment | Switching Type | Connection Type | Plumbing Thread Nominal | Driving Type | Orifice Dia. (Ø) | Option | Body material | Detailed type | Functions | Pilot port thread type | Diaphragm | Specifications | End plate material |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 240.57 | 1 Piece(s) | Quote | Chemical | Standard | Normally Closed | [Rc (R)] Rc | 3/8 | Pilot Type | 8 | With indicator | PPS | None | - | Rc 1/8 | PTFE | - | - |
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Basic Information
| Type | Air Operating Type | Operating Temperature Range(°C) | 0::60 | Number of Solenoids | Single Solenoid |
|---|---|---|---|---|---|
| Operating Pressure Differential Range(MPa) | 0.3::0.5 | Application | Single Item |
Specification/Dimensions
-
Functions
-
Specifications
- None
- Vacuum specification
-
End plate material
- None
- PPS
- PVDF
-
type
- LVA
- LVA1□
- LVA2□
- LVA3□
- LVA4□
- LVA5□
- LVA6□
-
Applicable Fluid
- Vacuum
- Chemical
-
Operating Environment
- Standard
- High Corrosion Resistance
-
Switching Type
- Normally Closed
- Normally Open
- Others
-
Connection Type
- Rc (R)
- G
- NPT
- Rc (R)
-
Plumbing Thread Nominal
-
Driving Type
- Pilot Type
-
Orifice Dia.(Ø)
-
Option
- None
- With bypass
- With flow rate adjustment
- With flow rate adjustment and bypass
- With indicator
-
Body material
- PFA
- PPS
- SUS
-
Detailed type
- None
- Vacuum specification
-
Pilot port thread type
- G 1/8
- NPT 1/8
- Rc 1/8
- M5
-
Diaphragm
- EPDM
- NBR
- PTFE
-
CAD
- 2D
- 3D
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
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