Specifications: 2WH03008AIT is an AirTAC 2W series direct-acting, normally closed 2/2-way fluid-control valve. It has NPT1/4 ports, a 2 mm orifice and a 220 V AC coil. The pressure-condition code selects the high-pressure configuration. The I code selects grommet electrical entry with a 0.5 m wire.
Product Catalogs
Download Legacy 2W Catalog (PDF)
Download New 2WA Catalog (PDF)
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Legacy-to-New Model and Ordering Information
Orders placed for legacy 2WH03008AIT will be supplied as 2WAH03008AIT under our store's replacement policy. The technical information below documents the legacy 2WH03008AIT; use the new 2WA catalog for the supplied 2WAH03008AIT.
Compare the correct terminal or grommet drawing before installation. The replacement policy does not establish identical dimensions, mounting geometry or interchangeable coils.
2W vs 2WA: Length, Dimensions and Replacement Guide
Model Code Explained
Code
Meaning for this model
2W
2W series 2/2-way fluid-control valve; normally closed.
H
High-pressure option.
030
030 size series; the pressure-condition code determines its orifice and flow data.
08
1/4 in port size; selected thread: NPT1/4.
A
Coil supply: 220 V AC.
I
Grommet electrical entry with a 0.5 m wire.
T
NPT thread standard.
Technical Specifications - 2W
The following values are from 2W PDF page 1 and describe the listed configuration. Pressure differential is the inlet-to-outlet pressure difference; proof pressure is a separate test value.
Parameter
Details
Valve function
2/2-way: two ports and two operating positions
Actuation
Direct acting
Initial state
Normally closed
Media
Air, water and oil
Body material
Brass
Standard seal material
FPM-F; contact the supplier if another seal material is required
Viscosity limit
Below 20 cSt
Port thread
NPT1/4
Orifice diameter
2 mm
Flow coefficient Cv
0.18
Effective area / section
3 mm²
Pressure differential
2 MPa maximum operating pressure differential
Proof pressure
5.0 MPa
Catalog reference weight
285 g
Water temperature
1 to 80°C
Air temperature
-20 to 90°C; the catalog specifies an air dew point of -20°C or lower
Oil temperature
-10 to 80°C; the catalog footnote states 50 cSt or less at the lower-temperature condition
Ambient temperature
-20 to 70°C
The catalog weight column describes terminal-entry valves. Its explicit grommet-entry footnote reduces that value by 10 g for this size, giving the 285 g reference above. Catalog weights are reference values, not a recorded weighing of this individual item.
The general viscosity limit and the lower-temperature oil footnote are retained as separate catalog statements. Check the actual medium and temperature against both before selection.
Electrical Specifications
Parameter
Details
Coil designation for this entry
CLA116
Rated voltage
220 V AC
Voltage tolerance
±15% for AC
Electrical entry
Grommet; 0.5 m wire
Protection class
IP65
50 Hz power consumption
10 VA
60 Hz power consumption
8 VA
Temperature rise at 50 Hz
35°C
Temperature rise at 60 Hz
30°C
Insulation class
Class B
Coil temperature rise is distinct from the ambient and fluid-temperature limits. The power figures are the values tabulated for the selected AC or DC supply.
Features and Operation
This 2/2-way valve is normally closed when not energized. The 030 and 050 branches use direct-acting construction.
The compact brass body is intended for air, water and oil within the catalog limits. The catalog describes rapid response, easy installation and dismantling.
Terminal and grommet electrical entries are separate order-code choices. The grommet option includes the catalog-specified 0.5 m wire.
The illustrated mounting bracket is optional. It is not included merely because it appears in a dimensional drawing.
External and Mounting Dimensions
These are the grommet-entry drawing values in the 2W PDF, page 2. Each letter below refers to its own dimension line; do not combine unrelated spans into an assumed overall length × width × height.
Drawing letter
Dimension / specification
A
41 mm
AB
40 mm
B
29.5 mm
C
71 mm
D
20 mm
E
49 mm
G
10 mm
K
5.3 mm
KA
40 mm
P
NPT1/4
PA
10 mm
Q
M5
QA
16 mm
The drawing marks two holes as 2-ØK (K = 5.3 mm), two threaded locations as 2-Q (Q = M5), and the bracket as optional. P is the valve port thread. Use the original views to locate QA, KA and the bracket outline; a listed hole diameter alone does not prove interchangeability.
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Flow and Performance Reference
Parameter
Details
Air chart vertical axis
Downstream pressure P2, 0-1.0 MPa; curves identify upstream pressure P1 and sonic / subsonic regions
Air chart flow axis
Orifice Ø2 mm: Q in L/min (ANR); marked values 40-300 (marked 40, 80, 120, 160, 200, 250, 300)
Water chart vertical axis
Flow Q in L/min, logarithmic scale; visible reference labels from 0.1 to 50
Water chart horizontal axis
Pressure differential ΔP = P1 - P2, in MPa; visible labels 0.001-0.6
The original flow charts are on 2W PDF page 2. Chart axes are reading scales, not guaranteed flow ratings. Use the curve for the correct orifice and medium; do not substitute a value estimated from a graph for a tabulated Cv or effective area.
Internal Components - Catalog Reference
The following numbered key is the catalog illustration for 2W030 (terminal), on PDF page 1. It is a drawing reference, not an included-parts quantity list or a list of independent ordering codes. Other size and entry versions must be checked against their own assembly.
Drawing number
Component
1
Body
2
Airtight ring
3
Spring
4
Fixed cap
5
O-ring
6
Fixed plate
7
Movable core
8
Coil assembly
9
E-clip
10
Gasket
11
Connector
12
Washer
13
Screw
14
Filter
Catalog note: the extra-large-flow T type has no filter element. The filter shown in the reference key must not be interpreted as included in a T configuration.
Mounting Accessory Reference
The 2W catalog directs accessory orders to the 2S accessory ordering information (printed page 194). That shared ordering table identifies F-2S030LB for this size.
The bracket is optional. The supplied catalog does not tabulate a separate bracket weight or a package-component count. Select the bracket for the actual valve family and drawing; legacy and new bracket compatibility must not be inferred from a similar listing name.
Series Ordering Options
These are alternative series choices, not additional configurations included with this order. The Model Code Explained table above states the actual selection.
Ordering category
Available catalog options
Size / port combinations
030: 06 (1/8 in) or 08 (1/4 in); 050: 10 (3/8 in) or 15 (1/2 in)
Pressure-condition codes
X = extra high pressure; H = high pressure; blank = standard; L = large flow; T = extra large flow
Voltage codes
A = 220 V AC; B = 24 V DC; C = 110 V AC; E = 24 V AC; F = 12 V DC
Electrical-entry code
Blank = terminal; I = grommet with a 0.5 m wire
Thread suffix
Blank = PT; G = G thread; T = NPT
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