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Coolant Valve, Air Operated / External Pilot Solenoid VNC Series

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.

PDF

External Pilot Type Solenoid Valve, Air Operated Type, Coolant Valve VNC Series Specifications

VNC Series external appearance 1

VNC Series external appearance 1

VNC Series external appearance 2

VNC Series external appearance 2

Fluid (Main Piping)Coolant *2
Fluid TemperatureVNC□□□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 Pressure1.5 MPa
Operating Pressure RangeVNC□□1□0 to 0.5 MPa
VNC□□2□
VNC□□4□
0 to 1 MPa
External
Pilot
Air
PressureVNC□□1□
VNC□□4□
0.25 to 0.7 MPa
VNC□□2□0.1 + 0.25 × (operating pressure) to 0.7 MPa
*See table 1
LubricationNot 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)

Table 1: VNC□□2□ pilot pressure (N.O. type)

Model

ModelPiping Connection Port DiameterOrifice Diameter ø[mm]Flow Rate CharacteristicsWeight (kg)
ThreadFlange*KvConversion CvAir Operated TypeExternal Pilot Solenoid Type
VNC1□□□-6A1/8-71.11.20.20.3
VNC1□□□-8A1/4-1.11.3
VNC1□□□-10A3/8-1.31.5
VNC2□4□-10A113.43.90.50.7
VNC2□□□-10A154.35.0
VNC2□4□-15A1/2-113.94.5
VNC2□□□-15A155.05.8
VNC3□4□-20A3/4-146.17.00.81.0
VNC3□□□-20A209.311
VNC4□4□-25A1-167.99.11.21.4
VNC4□□□-25A2513.215
VNC5□4□-32A1 1/4-2214.3172.22.4
VNC5□□□-32A3220.023
VNC5□4□-32F-322214.3175.05.2
VNC5□□□-32F3220.023
VNC6□4□-40A1 1/2-2822.5263.63.8
VNC6□□□-40A4029.334
VNC6□4□-40F-402825.7306.87.0
VNC6□□□-40F4034.340
VNC7□4□-50A2-3335.4415.55.7
VNC7□□□-50A5053.662
VNC7□4□-50F-503335.74110.210.4
VNC7□□□-50F5057.166
VNC814□-65F-654542.449-15.7
VNC811□-65F6560.670
VNC914□-80F-805663.173-21.2
VNC911□-80F8086.5100

Product Dimensions

Thread

 

(Units: mm)

 

Piping connection: 6A, 8A, 10A dimensional drawing

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

Piping connection: 10A, 15A, 20A, 25A dimensional drawing

 

(Units: mm)

 

ModelMain Port 1, 2ABCDEFHJ*KLMNPQRS
VNC2□□□-10A3/863422914.572.580.595.3162.5 (164.5)52264.524.32.3253455
VNC2□□□-15A1/263422914.572.580.595.3162.5 (164.5)52264.524.32.3253455
VNC3□□□-20A3/480503517.58492100.3174 (176)62315.528.32.3304360.5
VNC4□□□-25A190604020100108101.3190 (192)72366.533.32.3354973

*The dimensions in ( ) are for CE compliant products (-Q).

Product Diagram

N.C. (spring return normally closed type) 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

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.

NumberPart NameMaterialNotes
1Body AssemblyCast ironPlated
2Cover AssemblyAluminum alloyPlatinum silver coated
3Plate AssemblyIronSeal material (NBR, FKM)
4Valve ElementStainless steel-
5Valve CoverNBR, FKM32A to 50A use an O-ring
6Piston AssemblyAluminum alloy-
7Return SpringPiano wire-
8Spiral PinStainless steel-
9Pilot 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
VNC102B-6A
VNC104A-6A
VNC104A-8A
VNC104A-10A
VNC104B-6A
VNC104B-8A
VNC112A-8A-5D
VNC114A-6A-5G
VNC114A-8A-3G
VNC114A-8A-5DZ-B
VNC114A-8A-5T
VNC114A-10A-4TZ
VNC114A-10A-5DZ
VNC114A-10A-5DZ-B
VNC114A-10A-5DZ-B-Q
VNC114A-10A-5T
VNC114B-8A-4T-B
VNC201A-10A
VNC201A-10A-B
VNC201A-15A
VNC201B-10A
VNC201B-15A
VNC201B-15A-B
VNC202A-10A-B
VNC202B-15A
VNC204A-10A
VNC204A-10A-B
VNC204A-15A
VNC204A-15A-B
VNC204B-15A
VNC211A-10A-1DZ
VNC211A-10A-1DZ-B
VNC211A-10A-3DZ
VNC211A-10A-5DZ
VNC211A-10A-5DZ-B
VNC211A-10A-5DZ-Q
VNC211A-15A-1D
VNC211A-15A-1DZ
VNC211A-15A-1DZ-B
VNC211A-15A-2D
VNC211A-15A-2DZ
VNC211A-15A-3DZ
VNC211A-15A-4DZ
VNC211A-15A-5D
VNC211A-15A-5DZ
VNC211A-15A-5DZ-B
VNC211A-15A-5DZ-Q
VNC211B-10A-1DZ
VNC211B-10A-5DZ
VNC211B-15A-1D
VNC211B-15A-1DZ
VNC211B-15A-2DZ
VNC211B-15A-3DZ
VNC211B-15A-5DZ
VNC212A-15A-5DZ
VNC212A-15A-5DZ-Q
VNC214A-15A-1DZ
VNC214A-15A-1DZ-B
VNC214A-15A-5DZ
VNC214A-15A-5DZ-B-Q
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipType 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 192.73

1 Piece(s) 46 Day(s) Air Operating TypeNormally Open[Rc (R)] Rc1/8Pilot Type-7-5~60Single Solenoid-FKMNoneNone-None-NoneNon-locking, push type

SGD 181.53

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/8Pilot Type-7-5~60Single Solenoid-NBRNoneNone-None-NoneNon-locking, push type

SGD 181.53

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/4Pilot Type-7-5~60Single Solenoid-NBRNoneNone-None-NoneNon-locking, push type

SGD 181.53

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-7-5~60Single Solenoid-NBRNoneNone-None-NoneNon-locking, push type

SGD 192.73

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/8Pilot Type-7-5~60Single Solenoid-FKMNoneNone-None-NoneNon-locking, push type

SGD 192.73

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/4Pilot Type-7-5~60Single Solenoid-FKMNoneNone-None-NoneNon-locking, push type

SGD 251.42

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Open[Rc (R)] Rc1/4Pilot Type-7-5~50Single Solenoid24 V DCNBRNoneNone-None-DIN terminalNon-locking, push type

SGD 237.42

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/8Pilot Type-7-5~50Single Solenoid24 V DCNBRNoneNone300None-GrommetNon-locking, push type

SGD 237.42

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/4Pilot Type-7-5~50Single Solenoid110 V ACNBRNoneNone300None-GrommetNon-locking, push type

SGD 265.42

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/4Pilot Type-7-5~50Single Solenoid24 V DCNBRWith lightIncluded-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 248.62

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/4Pilot Type-7-5~50Single Solenoid24 V DCNBRNoneNone-None-Conduit terminalNon-locking, push type

SGD 257.02

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-7-5~50Single Solenoid220 V ACNBRWith lightNone-None-Conduit terminal with light and surge voltage suppressorNon-locking, push type

SGD 259.82

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-7-5~50Single Solenoid24 V DCNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 265.42

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-7-5~50Single Solenoid24 V DCNBRWith lightIncluded-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 271.02

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-7-5~50Single Solenoid24 V DCNBRWith lightIncluded-CE compliant product-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 248.62

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-7-5~50Single Solenoid24 V DCNBRNoneNone-None-Conduit terminalNon-locking, push type

SGD 265.42

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/4Pilot Type-7-5~50Single Solenoid220 V ACFKMNoneIncluded-None-Conduit terminalNon-locking, push type

SGD 231.82

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~60Single Solenoid-NBRNoneNone-None-NoneNon-locking, push type

SGD 248.62

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~60Single Solenoid-NBRNoneIncluded-None-NoneNon-locking, push type

SGD 231.82

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~60Single Solenoid-NBRNoneNone-None-NoneNon-locking, push type

SGD 252.82

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~60Single Solenoid-FKMNoneNone-None-NoneNon-locking, push type

SGD 252.82

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~60Single Solenoid-FKMNoneNone-None-NoneNon-locking, push type

SGD 269.62

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~60Single Solenoid-FKMNoneIncluded-None-NoneNon-locking, push type

SGD 248.62

1 Piece(s) 46 Day(s) Air Operating TypeNormally Open[Rc (R)] Rc3/8Pilot Type-15-5~60Single Solenoid-NBRNoneIncluded-None-NoneNon-locking, push type

SGD 252.82

1 Piece(s) 46 Day(s) Air Operating TypeNormally Open[Rc (R)] Rc1/2Pilot Type-15-5~60Single Solenoid-FKMNoneNone-None-NoneNon-locking, push type

SGD 278.02

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-11-5~60Single Solenoid-NBRNoneNone-None-NoneNon-locking, push type

SGD 294.70

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-11-5~60Single Solenoid-NBRNoneIncluded-None-NoneNon-locking, push type

SGD 278.02

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-11-5~60Single Solenoid-NBRNoneNone-None-NoneNon-locking, push type

SGD 294.70

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-11-5~60Single Solenoid-NBRNoneIncluded-None-NoneNon-locking, push type

SGD 298.90

1 Piece(s) 46 Day(s) Air Operating TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-11-5~60Single Solenoid-FKMNoneNone-None-NoneNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~50Single Solenoid100 V ACNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 388.27

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~50Single Solenoid100 V ACNBRWith lightIncluded-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~50Single Solenoid110 V ACNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~50Single Solenoid24 V DCNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 388.27

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~50Single Solenoid24 V DCNBRWith lightIncluded-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 377.18

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~50Single Solenoid24 V DCNBRWith lightNone-CE compliant product-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 363.18

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid100 V ACNBRNoneNone-None-DIN terminalNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid100 V ACNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 388.27

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid100 V ACNBRWith lightIncluded-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 363.18

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid200 V ACNBRNoneNone-None-DIN terminalNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid200 V ACNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid110 V ACNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid220 V ACNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 363.18

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid24 V DCNBRNoneNone-None-DIN terminalNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid24 V DCNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 388.27

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid24 V DCNBRWith lightIncluded-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 377.18

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid24 V DCNBRWith lightNone-CE compliant product-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 392.47

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~50Single Solenoid100 V ACFKMWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 392.47

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc3/8Pilot Type-15-5~50Single Solenoid24 V DCFKMWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 384.07

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid100 V ACFKMNoneNone-None-DIN terminalNon-locking, push type

SGD 392.47

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid100 V ACFKMWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 370.53

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid200 V ACFKMWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 392.47

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid110 V ACFKMWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 392.47

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid24 V DCFKMWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 371.58

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Open[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid24 V DCNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 377.18

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Open[Rc (R)] Rc1/2Pilot Type-15-5~50Single Solenoid24 V DCNBRWith lightNone-CE compliant product-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 417.67

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-11-5~50Single Solenoid100 V ACNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 434.35

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-11-5~50Single Solenoid100 V ACNBRWith lightIncluded-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 417.67

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-11-5~50Single Solenoid24 V DCNBRWith lightNone-None-DIN terminal with light and surge voltage suppressorNon-locking, push type

SGD 439.95

1 Piece(s) 46 Day(s) Electromagnetic TypeNormally Closed[Rc (R)] Rc1/2Pilot Type-11-5~50Single Solenoid24 V DCNBRWith lightIncluded-CE compliant product-DIN terminal with light and surge voltage suppressorNon-locking, push type

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Basic Information

Applicable Fluid Coolant Operating Environment Standard Application Single Item
Body material Cast iron

Tech Support