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Coolant Valve, Air Operated / External Pilot Solenoid VNC Series
A coolant valve made by SMC.
[Features]
· Cylinder actuation by pilot air
· Wide selection of port sizes and variations
· Low water hammer
· Large valve capacity
(i)Caution
- Product images may be representative images. Refer to the catalog for details.
Part Number
Configured Part Number is shown.
External Pilot Type Solenoid Valve, Air Operated Type, Coolant Valve VNC Series Specifications
VNC Series external appearance 1
VNC Series external appearance 2
| Fluid (Main Piping) | Coolant *2 | ||
|---|---|---|---|
| Fluid Temperature | VNC□□□A VNC□1□B | *1: -5 to +60°C | |
| VNC□0□B | *1: -5 to +99℃ | ||
| Ambient Temperature | *1: -5 to +50°C (60°C for air-operated type) | ||
| Proof Pressure | 1.5 MPa | ||
| Operating Pressure Range | VNC□□1□ | 0 to 0.5 MPa | |
| VNC□□2□ VNC□□4□ | 0 to 1 MPa | ||
| External Pilot Air | Pressure | VNC□□1□ VNC□□4□ | 0.25 to 0.7 MPa |
| VNC□□2□ | 0.1 + 0.25 × (operating pressure) to 0.7 MPa *See table 1 | ||
| Lubrication | Not required (if lubricating, use turbine oil class 1 ISO VG32) | ||
| Temperature | *1: -5 to +50°C (60°C for air-operated type) | ||
| Mounting Orientation | *3: Unrestricted | ||
*1 No freezing.
*2: This product cannot be used for water.
*3: However, if the external pilot is a solenoid type, SMC recommends mounting the pilot solenoid valve in an upward facing vertical or horizontal orientation.
Table 1: VNC□□2□ pilot pressure (N.O. type)
Model
| Model | Piping Connection Port Diameter | Orifice Diameter ø[mm] | Flow Rate Characteristics | Weight (kg) | |||
|---|---|---|---|---|---|---|---|
| Thread | Flange* | Kv | Conversion Cv | Air Operated Type | External Pilot Solenoid Type | ||
| VNC1□□□-6A | 1/8 | - | 7 | 1.1 | 1.2 | 0.2 | 0.3 |
| VNC1□□□-8A | 1/4 | - | 1.1 | 1.3 | |||
| VNC1□□□-10A | 3/8 | - | 1.3 | 1.5 | |||
| VNC2□4□-10A | 11 | 3.4 | 3.9 | 0.5 | 0.7 | ||
| VNC2□□□-10A | 15 | 4.3 | 5.0 | ||||
| VNC2□4□-15A | 1/2 | - | 11 | 3.9 | 4.5 | ||
| VNC2□□□-15A | 15 | 5.0 | 5.8 | ||||
| VNC3□4□-20A | 3/4 | - | 14 | 6.1 | 7.0 | 0.8 | 1.0 |
| VNC3□□□-20A | 20 | 9.3 | 11 | ||||
| VNC4□4□-25A | 1 | - | 16 | 7.9 | 9.1 | 1.2 | 1.4 |
| VNC4□□□-25A | 25 | 13.2 | 15 | ||||
| VNC5□4□-32A | 1 1/4 | - | 22 | 14.3 | 17 | 2.2 | 2.4 |
| VNC5□□□-32A | 32 | 20.0 | 23 | ||||
| VNC5□4□-32F | - | 32 | 22 | 14.3 | 17 | 5.0 | 5.2 |
| VNC5□□□-32F | 32 | 20.0 | 23 | ||||
| VNC6□4□-40A | 1 1/2 | - | 28 | 22.5 | 26 | 3.6 | 3.8 |
| VNC6□□□-40A | 40 | 29.3 | 34 | ||||
| VNC6□4□-40F | - | 40 | 28 | 25.7 | 30 | 6.8 | 7.0 |
| VNC6□□□-40F | 40 | 34.3 | 40 | ||||
| VNC7□4□-50A | 2 | - | 33 | 35.4 | 41 | 5.5 | 5.7 |
| VNC7□□□-50A | 50 | 53.6 | 62 | ||||
| VNC7□4□-50F | - | 50 | 33 | 35.7 | 41 | 10.2 | 10.4 |
| VNC7□□□-50F | 50 | 57.1 | 66 | ||||
| VNC814□-65F | - | 65 | 45 | 42.4 | 49 | - | 15.7 |
| VNC811□-65F | 65 | 60.6 | 70 | ||||
| VNC914□-80F | - | 80 | 56 | 63.1 | 73 | - | 21.2 |
| VNC911□-80F | 80 | 86.5 | 100 | ||||
Product Dimensions
Thread
(Units: mm)
Piping connection: 6A, 8A, 10A dimensional drawing
*9 mm longer for EZ, TZ and DZ.
- VNC1□□□-6A: Main port 1, 2 / 1/8
- VNC1□□□-8A: Main port 1, 2 / 1/4
- VNC1□□□-10A: Main port 1, 2 / 3/8
(Units: mm)
Piping connection: 10A, 15A, 20A, 25A dimensional drawing
(Units: mm)
| Model | Main Port 1, 2 | A | B | C | D | E | F | H | J* | K | L | M | N | P | Q | R | S |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VNC2□□□-10A | 3/8 | 63 | 42 | 29 | 14.5 | 72.5 | 80.5 | 95.3 | 162.5 (164.5) | 52 | 26 | 4.5 | 24.3 | 2.3 | 25 | 34 | 55 |
| VNC2□□□-15A | 1/2 | 63 | 42 | 29 | 14.5 | 72.5 | 80.5 | 95.3 | 162.5 (164.5) | 52 | 26 | 4.5 | 24.3 | 2.3 | 25 | 34 | 55 |
| VNC3□□□-20A | 3/4 | 80 | 50 | 35 | 17.5 | 84 | 92 | 100.3 | 174 (176) | 62 | 31 | 5.5 | 28.3 | 2.3 | 30 | 43 | 60.5 |
| VNC4□□□-25A | 1 | 90 | 60 | 40 | 20 | 100 | 108 | 101.3 | 190 (192) | 72 | 36 | 6.5 | 33.3 | 2.3 | 35 | 49 | 73 |
*The dimensions in ( ) are for CE compliant products (-Q).
Product Diagram
N.C. (spring return normally closed type) diagram
When pilot solenoid valve 8 is not energized (or when air is exhausted from 12 (P1) port of the air operated type), valve 4 linked to piston 6 is closed via the action of the return spring 7.
For Opening the Valve
When the pilot solenoid valve is energized (or when pressurized air enters through port 12 (P1) of the air operated type), the pilot air that has entered under the piston moves upward, opening the valve.
For Closing the Valve
When the power to the pilot solenoid valve is cut (or when fluid is exhausted from port 12 (P1) of the air operated type), the pilot air under the piston is exhausted and the valve closed via the action of the return spring.
N.O. (spring return normally open type) diagram
In contrast for the N.C. type, when the power to the pilot solenoid valve is shut off (or when air is exhausted from port 10 (P2) of the air operated type), unenergized, the valve is held open via the return spring.
When the pilot solenoid valve is energized (or when pressurized air enters through port 10 (P2) of the air operated type), the valve closes.
| Number | Part Name | Material | Notes |
|---|---|---|---|
| 1 | Body Assembly | Cast iron | Plated |
| 2 | Cover Assembly | Aluminum alloy | Platinum silver coated |
| 3 | Plate Assembly | Iron | Seal material (NBR, FKM) |
| 4 | Valve Element | Stainless steel | - |
| 5 | Valve Cover | NBR, FKM | 32A to 50A use an O-ring |
| 6 | Piston Assembly | Aluminum alloy | - |
| 7 | Return Spring | Piano wire | - |
| 8 | Spiral Pin | Stainless steel | - |
| 9 | Pilot Solenoid Valve | - | - |
*Parts 3 and 5 are for selection of valve composition.
Precautions
- *Use heat resistant parts for fittings and tubing when using high temperature fluids. (Compression fittings, fluorine resin tubes, copper piping, etc.)
- *Be sure to read the individual product precautions before use.
- *See the SMC catalog for product information other than the above.
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Type | Switching Type | Connection Type | Plumbing Thread Nominal | Driving Type | Tube Flange Nominal | Orifice Dia. (Ø) | Operating Temperature Range (°C) | Number of Solenoids | Voltage | Sealing materials | Option | Bracket | Lead wire length (mm) | Functions | CE compliant | Lead wire electrical entry | Manual operation type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 810.13 | 1 Piece(s) | 32 Day(s) | Air Operating Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～60 | Single Solenoid | - | NBR | None | None | - | None | - | None | Non-locking, push type | ||
SGD 810.13 | 1 Piece(s) | 32 Day(s) | Air Operating Type | Normally Open | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～60 | Single Solenoid | - | NBR | None | None | - | None | - | None | Non-locking, push type | ||
SGD 930.30 | 1 Piece(s) | 32 Day(s) | Air Operating Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 28 | -5～60 | Single Solenoid | - | NBR | None | None | - | None | - | None | Non-locking, push type | ||
SGD 949.78 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～50 | Single Solenoid | 100 V AC | NBR | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
- | 1 Piece(s) | Quote | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～50 | Single Solenoid | 200 V AC | NBR | None | None | - | - | Not compatible | DIN terminal | Non-locking, push type | ||
SGD 949.78 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～50 | Single Solenoid | 24 V DC | NBR | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
SGD 955.38 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～50 | Single Solenoid | 24 V DC | NBR | With light | None | - | CE compliant product | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
SGD 988.98 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～50 | Single Solenoid | 220 V AC | FKM | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
SGD 988.98 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～50 | Single Solenoid | 24 V DC | FKM | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
SGD 949.78 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Open | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～50 | Single Solenoid | 100 V AC | NBR | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
SGD 949.78 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Open | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 40 | -5～50 | Single Solenoid | 24 V DC | NBR | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
SGD 1,069.95 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 28 | -5～50 | Single Solenoid | 100 V AC | NBR | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
- | 1 Piece(s) | Quote | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | - | -5～50 | Single Solenoid | 200 V AC | NBR | None | None | - | - | Not compatible | DIN terminal | Non-locking, push type | ||
SGD 1,069.95 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 28 | -5～50 | Single Solenoid | 220 V AC | NBR | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
SGD 1,069.95 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 28 | -5～50 | Single Solenoid | 24 V DC | NBR | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
- | 1 Piece(s) | Quote | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | - | -5～50 | Single Solenoid | 200 V AC | FKM | With light | None | - | - | Not compatible | DIN terminal with light and surge voltage suppressor | Non-locking, push type | ||
SGD 1,109.03 | 1 Piece(s) | 32 Day(s) | Electromagnetic Type | Normally Closed | [Rc (R)] Rc | 1 1/2 | Pilot Type | - | 28 | -5～50 | Single Solenoid | 24 V DC | FKM | With light | None | - | None | - | DIN terminal with light and surge voltage suppressor | Non-locking, push type |
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Basic Information
| Applicable Fluid | Coolant | Operating Environment | Standard | Application | Single Item |
|---|---|---|---|---|---|
| Body material | Cast iron |
Specification/Dimensions
-
Type
- Electromagnetic Type
- Air Operating Type
-
Switching Type
- Normally Closed
- Normally Open
-
Connection Type
- Rc (R)
- G
- NPT
- Tube Flange
- Rc (R)
-
Driving Type
- Pilot Type
-
Tube Flange Nominal
-
Orifice Dia.(Ø)
-
Voltage
- 12 V DC
- 24 V DC
- 100 V AC
- 110 V AC
- 200 V AC
- 220 V AC
-
Sealing materials
- FKM
- NBR
-
Option
- None
- With light
-
Bracket
- Included
- None
-
Lead wire length(mm)
- 200
- 300
-
Functions
-
CE compliant
- CE-compliant product
- Not compatible
-
Lead wire electrical entry
- Conduit terminal
- Conduit terminal with light and surge voltage suppressor
- DIN terminal
- DIN terminal with light and surge voltage suppressor
- Grommet
- None
-
Manual operation type
- Locking type B (Tool required)
- Non-locking, push type
- Non-locking, push type A (projecting)
-
type
- VNC
- VNC□0□□
- VNC□1□□
-
Plumbing Thread Nominal
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 32 Day(s) or Less
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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