(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.

Direct Operated 3 Port Solenoid Valve VX31/32/33 Series (Part Numbers)

Direct Operated 3 Port Solenoid Valve VX31/32/33 Series
  • Volume Discount

SMC Solenoid Valve.
[Features]
· Solenoid valves that can be used with various fluids in a wide variety of applications
· Improved corrosion resistance
· Enclosure: Equivalent to IP65
· Low noise construction
· Reduced power consumption
· UL94V-0 conforming flame resistance
· Improved maintenance performance

(i)Caution

  • Refer to the manufacturer's catalog for specification and material details.
  • CAD data is not available for some model numbers.
  • Product images may be representative. Please refer to the manufacturer's catalog for shape details.

PDF

Part Number

Configured Part Number is shown.

Part Number
VX3110-01-5DZ1
VX3110-01-5DZ1-B
VX3110-01-6D1
VX3110-01N-3CR1
VX3110-01N-3DR1
VX3110-01N-5G1
VX3110-01T-5DZ1-B
VX3110-01T-5G1
VX3110-02-5TZ1-B
VX3110-02N-3CR1
VX3110-02N-3DR1
VX3110-02N-5D1
VX3110G-02N-3DR1
VX3111-00-4DR1
VX3113-00-5DL1
VX3114-01-3DR1
VX3114-01-3DR1-B
VX3114-01-5D1
VX3114-01-5DZ1
VX3114-01-5DZ1-B
VX3114-01-6G1
VX3114-01F-JDOR1
VX3114-01F-JDOR1-B
VX3114-01N-5DZ1
VX3114-01N-6D1-B
VX3114-01T-3DR1-B
VX3114-02-3DR1
VX3114-02-5DZ1
VX3114-02-5DZ1-B
VX3114-02N-3CR1-B
VX3114G-01-5DZ1
VX3114G-01-5G1
VX3120-01N-5DO1
VX3120-02-3DR1
VX3120-02-5DZ1-B
VX3120-02N-5DZ1
VX3120-02N-5DZ1-B
VX3120G-02N-5DZ1
VX3121-00-1DLR1
VX3121-00-3DLR1
VX3121-00-5DL1
VX3122-02-3DR1
VX3122-02N-3DR1
VX3123-00-5DZ1
VX3124-01N-6G1
VX3124-01T-5DS1-B
VX3124-02-3DR1
VX3124-02-3GR1
VX3124-02-5DZ1-B
VX3124-02-5G1
VX3130-01-5D1-B
VX3130-01-6GS1-B
VX3130-01N-5DZ1
VX3130-02-3GR1-B
VX3130-02-5DZ1
VX3130-02-5DZ1-B
VX3130-02N-3CR1
VX3130-02N-3DR1
VX3130-02N-3GR1
VX3130-02N-5DZ1-B
VX3130G-01N-6G1
VX3134-01-5DZ1-B
VX3134-01F-5DZ1
VX3134-02-1DLR1
VX3134-02-3DLR1
VX3134-02-3DR1
VX3134-02-5D1
VX3134-02-5G1
VX3134-02N-5DZ1
VX3134-02N-5G1
VX3134-02N-6G1
VX3220-02-5D1-B
VX3220-03-5DZ1-B
VX3222-02T-5DZ1-B
VX3224-02-3DR1
VX3224-02-5DZ1
VX3224-02-5TZ1-B
VX3224-02N-3CR1-B
VX3224-02N-5C1-B
VX3224-02N-5G1
VX3224-02T-5DZ1-B
VX3224G-02N-3CR1-B
VX3224G-02N-5C1-B
VX3230-02N-3DR1
VX3230-03-5G1-B
VX3230G-03N-3DR1
VX3232G-02N-3CR1-B
VX3234-02-5DZ1
VX3234-02N-5DZ1
VX3234-03-5G1-B
Part NumberMinimum order quantityVolume DiscountDays to Ship Applicable Fluid Switching Type Application Connection Type Plumbing Thread Nominal Operating Temperature Range
(℃)
Range of Operating Pressure Difference
(MPa)
Orifice Dia.
(Ø)
Insulation Class Acquired Standards Voltage Sealing materials Body material Bracket Detailed type Power consumption
(W)
Functions Lead wire electrical entry Apparent power
(VA)
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/8-20~40null~11.5BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/8-20~40null~1-BCE24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/8-20~40null~1-B-12 V DCNBRC37NoneNone4.5NoneDIN terminal-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/8-null~1-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeConduit7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/8-null~1-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/8-20~40null~1-B-24 V DCNBRC37NoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPTF1/8-20~40null~1-B-24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPTF1/8-20~40null~1-B-24 V DCNBRC37NoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/4-20~40null~1-BCE24 V DCNBRC37IncludedNone4.5NoneConduit terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-null~1-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeConduit7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-null~1-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-20~40null~1-B-24 V DCNBRC37NoneNone4.5NoneDIN terminal-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-null~1-B-110 V AC 50/60 HzNBRSUSNoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

AirNormally ClosedMulti-Port---null~1-BCE220 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

AirNormally OpenMulti-Port---20~40null~1-B-24 V DCNBRC37NoneNone4.5NoneDIN terminal / With light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-null~0.7-BCE110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-null~0.7-BCE110 V AC 50/60 HzNBRC37IncludedNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-20~40null~0.7-BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-20~40null~0.7-BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-20~40null~0.7-BCE24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-20~40null~0.7-BCE12 V DCNBRC37NoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemG1/8-null~0.7-B-230 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeFor DIN terminal (without connector, gasket included)7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemG1/8-null~0.7-B-230 V AC 50/60 HzNBRC37IncludedNone-Built-in full wave rectifier typeFor DIN terminal (without connector, gasket included)7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/8-20~40null~0.7-B-24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/8-20~40null~0.7-B-12 V DCNBRC37IncludedNone4.5NoneDIN terminal-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPTF1/8-null~0.7-B-110 V AC 50/60 HzNBRC37IncludedNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-null~0.7-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.7-BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.7-BCE24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-null~0.7-B-110 V AC 50/60 HzNBRC37IncludedNone-Built-in full wave rectifier typeConduit7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-20~40null~0.7-BCE24 V DCNBRSUSNoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-20~40null~0.7-B-24 V DCNBRSUSNoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/8-20~40null~0.72.2B-24 V DCNBRC37NoneNone4.5NoneFor DIN terminal (without connector, gasket included)-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/4-null~0.72.2B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/4-20~40null~0.72.2BCE24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-20~40null~0.72.2BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-20~40null~0.72.2B-24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-20~40null~0.72.2B-24 V DCNBRSUSNoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

AirNormally ClosedMulti-Port---null~0.72.2BCE100 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal / With light7
1 Piece(s)Available

Quote

AirNormally ClosedMulti-Port---20~60null~0.72.2B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal / With light7
1 Piece(s)Available

Quote

AirNormally ClosedMulti-Port---20~40null~0.72.2BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal / With light-
1 Piece(s)Available

Quote

Air / WaterNormally OpenIndividual Item[Rc (R)] Rc1/4-null~0.52.2B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / WaterNormally OpenIndividual ItemNPT1/4-null~0.52.2B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

AirNormally OpenMulti-Port---20~40null~0.52.2B-24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/8-20~40null~0.42.2B-12 V DCNBRC37NoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPTF1/8-20~40null~0.42.2B-24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-null~0.42.2B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-null~0.42.2B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeGrommet7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.42.2BCE24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.42.2BCE24 V DCNBRC37NoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/8-20~40null~0.3-BCE24 V DCNBRC37IncludedNone4.5NoneDIN terminal-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/8-20~40null~0.3-B-12 V DCNBRC37IncludedNone4.5NoneGrommet with surge voltage suppressor-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/8-20~40null~0.3-B-24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/4-20~60null~0.33BCE110 V AC 50/60 HzNBRC37IncludedNone-Built-in full wave rectifier typeGrommet7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/4-20~40null~0.3-BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/4-20~40null~0.3-BCE24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-null~0.3-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeConduit7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-null~0.3-BCE110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-null~0.3-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeGrommet7
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-20~40null~0.3-B-24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/8-20~40null~0.3-B-12 V DCNBRSUSNoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/8-20~40null~0.2-BCE24 V DCNBRC37IncludedNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemG1/8-20~40null~0.2-B-24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-null~0.2-BCE100 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal / With light7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-null~0.2-BCE110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal / With light7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-null~0.2-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal7
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.23BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.2-BCE24 V DCNBRC37NoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-20~40null~0.2-BCE24 V DCNBRC37NoneNone4.5NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-20~40null~0.2-B-24 V DCNBRC37NoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-20~40null~0.2-B-12 V DCNBRC37NoneNone4.5NoneGrommet-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc1/4-20~40null~1.22.2BCE24 V DCNBRC37IncludedNone7NoneDIN terminal-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc3/8-20~40null~1.22.2BCE24 V DCNBRC37IncludedNone7NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / WaterNormally OpenIndividual ItemNPTF1/4-20~40null~12.2B-24 V DCNBRC37IncludedNone7NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-null~0.72.2BCE110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal9.5
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.72.2BCE24 V DCNBRC37NoneNone7NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.72.2BCE24 V DCNBRC37IncludedNone7NoneConduit terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-null~0.72.2B-110 V AC 50/60 HzNBRC37IncludedNone-Built-in full wave rectifier typeConduit9.5
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-20~40null~0.72.2B-24 V DCNBRC37IncludedNone7NoneConduit-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-20~40null~0.72.2B-24 V DCNBRC37NoneNone7NoneGrommet-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPTF1/4-20~40null~0.72.2B-24 V DCNBRC37IncludedNone7NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-null~0.72.2B-110 V AC 50/60 HzNBRSUSIncludedNone-Built-in full wave rectifier typeConduit9.5
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-20~40null~0.72.2BCE24 V DCNBRSUSIncludedNone7NoneConduit-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT1/4-null~0.6-B-110 V AC 50/60 HzNBRC37NoneNone-Built-in full wave rectifier typeDIN terminal9.5
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual Item[Rc (R)] Rc3/8-20~40null~0.6-BCE24 V DCNBRC37IncludedNone7NoneGrommet-
1 Piece(s)Available

Quote

Air / WaterNormally ClosedIndividual ItemNPT3/8-null~0.6-BCE110 V AC 50/60 HzNBRSUSNoneNone-Built-in full wave rectifier typeDIN terminal9.5
1 Piece(s)Available

Quote

Air / WaterNormally OpenIndividual ItemNPT1/4-null~0.5-B-110 V AC 50/60 HzNBRSUSIncludedNone-Built-in full wave rectifier typeConduit9.5
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc1/4-20~40null~0.3-BCE24 V DCNBRC37NoneNone7NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual ItemNPT1/4-20~40null~0.33B-24 V DCNBRC37NoneNone7NoneDIN terminal with surge voltage suppressor and light-
1 Piece(s)Available

Quote

Air / Water3-Port UniversalIndividual Item[Rc (R)] Rc3/8-20~40null~0.3-BCE24 V DCNBRC37IncludedNone7NoneGrommet-

Loading...

Basic Information

Operating Environment Dust Resistant Type Electromagnetic Type Driving Type Linear Motion Type
IP IP65 Option None

Additional Products in this Category

Tech Support