Airtac 4H series: hand lever directional valve - 4H31008
Photos are for reference only. Not all models have pictures.
Description
Specifications: 4H31008 is a hand lever valve with manual return and 5-port, 2-position operation. 4H selects the return construction, 3 selects the 300 size, 10 selects the position/center function, 08 selects the 1/4-inch inlet and outlet connections, and the omitted thread suffix selects PT thread.
Product Catalog
Download Airtac Product Catalog (PDF)
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Existing Product Statement
Airtac 4H hand lever valves are functional alternatives to the SMC VZM400 series.
Model Code Explained
Code
Meaning for this model
4H
Hand lever valve; manual return
3
300 size
10
5-port, 2-position
08
Supply and outlet connection PT 1/4
Thread suffix omitted
PT thread
Technical Specifications
Parameter
Details
Valve function
5-port, 2-position
Actuation
Direct acting; hand lever
Return construction
Manual return
Supply and outlet connection
PT 1/4
Exhaust connection
PT 1/4
Body material
Aluminum alloy
Mounting
Panel mounting or the body holes shown in the drawing
Working medium
Air, filtered through a 40 µm filter element
Working pressure
0–1.0 MPa
Proof pressure
1.5 MPa
Operating temperature
−20 to 70 °C
Air lubrication
Not required
Reference weight
242 g
Weight basis
2022 comprehensive catalog, printed page 300; reference value, actual product prevails
Features and Operation
The sliding-spool structure provides sealing performance in a compact valve.
The bore is specially processed to reduce friction and wear; installation and removal are straightforward.
Air lubrication is not required. If lubrication is used, continue it consistently with ISO VG32 or equivalent oil.
External and Mounting Dimensions
Drawing label
Value for this model
A
101 mm
AB
87 mm
AC
73 mm
B
40 mm
C
93.5 mm
CA
27 mm
D
18 mm
K
4.3 mm
KA
24 mm
KB
27.5 mm
P
PT 1/4
PA
45 mm
Q
PT 1/4
QA
22 mm
QB
Not specified (dash)
QC
40.5 mm
Theta
±18°
Mounting detail
Value for this model
Panel-mounting thread
M20 × 1.5
Panel opening diameter
Ø20 mm
Maximum panel thickness
6 mm
Body mounting holes
3 × Ø4.3 mm
D and K are diameter references. P marks the exhaust connections and Q the supply/work connections. Retain or remove the mounting gasket according to the panel thickness and the catalog installation detail. A dash in the QB table cell means that no value is specified; it is not a zero dimension.
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Flow and Performance Reference
Parameter
Details
Printed technical-table reference
4H31010
Reference effective area
28 mm²
Reference Cv
1.65
Plotted curve model
4H31010
Chart vertical axis
Operating pressure, MPa; labeled range 0–0.7 MPa
Chart horizontal axis
Air flow, L/min; labeled range 0–3200
Curve conditions
Curves plotted across the shown operating-pressure range; individual curves have no separate printed labels
These numerical flow references apply to the explicitly printed models. The catalog does not separately rate every return, center or port variant. The plotted two-position curve is not a separate performance guarantee for a three-position configuration. AirTAC laboratory flow measurements are used to calculate the effective area and Cv; chart limits are not rated flow values.
Internal Components
The numbered items below reproduce the catalog internal-structure reference. Item numbers identify parts in the illustration; they are not quantities, replacement-kit order codes or a list of separately supplied accessories. The source uses 4H210 and 4HA230C reference sections; return and positioning components depend on the selected construction.
Catalog item number
Component name
1
Round-head screw
2
Bottom cover
3
Body
4
O-ring
5
Spool
6
Top cover
7
Round-head screw
8
Shaft
9
Socket set screw
10
Spring
11
Steel-ball sleeve
12
Steel ball
13
E-clip
14
Side cover
15
Spring
16
Return holder
Series Ordering Options
4H denotes manual return and 4HA denotes spring return. Size 200 offers 1/8 and 1/4 supply/work ports; size 300 offers 1/4 and 3/8. Function 10 is 5/2; 30C is 5/3 closed center; 30E is 5/3 exhaust center. PT is the default thread; G and NPT are alternatives. The return construction and center function in the current SKU are the ordered configuration. The page does not publish a separate accessory-kit order code or kit quantity.
Product form
Specifications: 4H31008 is a hand lever valve with manual return and 5-port, 2-position operation. 4H selects the return construction, 3...
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Download: 3D model selection. ↗ Shipping & delivery times In-stock items: processed and shipped within 1–3 business days. Custom-made items: G/NPT threads and non-standard specifications require 7–15 business days of factory production before shipping.
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Shipping charges and tax details
Model selection & custom orders Please check the full model number, dimensions, thread type, stroke and voltage where applicable before ordering. If you are unsure, email airtacs@airtacs.com with the model number and required specifications.
Custom-made products, including G/NPT thread specifications and custom-built parts, are non-returnable and non-refundable under our refund policy.
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Delivery issue policy
Returns & product issues Eligible returns are accepted within 7 days of delivery . Items must be unused, uninstalled and in their original factory packaging. Contact airtacs@airtacs.com for a Return Authorization (RA) number before returning anything.
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Description
Specifications: 4H31008 is a hand lever valve with manual return and 5-port, 2-position operation. 4H selects the return construction, 3 selects the 300 size, 10 selects the position/center function, 08 selects the 1/4-inch inlet and outlet connections, and the omitted thread suffix selects PT thread.
Product Catalog
Download Airtac Product Catalog (PDF)
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Existing Product Statement
Airtac 4H hand lever valves are functional alternatives to the SMC VZM400 series.
Model Code Explained
Code
Meaning for this model
4H
Hand lever valve; manual return
3
300 size
10
5-port, 2-position
08
Supply and outlet connection PT 1/4
Thread suffix omitted
PT thread
Technical Specifications
Parameter
Details
Valve function
5-port, 2-position
Actuation
Direct acting; hand lever
Return construction
Manual return
Supply and outlet connection
PT 1/4
Exhaust connection
PT 1/4
Body material
Aluminum alloy
Mounting
Panel mounting or the body holes shown in the drawing
Working medium
Air, filtered through a 40 µm filter element
Working pressure
0–1.0 MPa
Proof pressure
1.5 MPa
Operating temperature
−20 to 70 °C
Air lubrication
Not required
Reference weight
242 g
Weight basis
2022 comprehensive catalog, printed page 300; reference value, actual product prevails
Features and Operation
The sliding-spool structure provides sealing performance in a compact valve.
The bore is specially processed to reduce friction and wear; installation and removal are straightforward.
Air lubrication is not required. If lubrication is used, continue it consistently with ISO VG32 or equivalent oil.
External and Mounting Dimensions
Drawing label
Value for this model
A
101 mm
AB
87 mm
AC
73 mm
B
40 mm
C
93.5 mm
CA
27 mm
D
18 mm
K
4.3 mm
KA
24 mm
KB
27.5 mm
P
PT 1/4
PA
45 mm
Q
PT 1/4
QA
22 mm
QB
Not specified (dash)
QC
40.5 mm
Theta
±18°
Mounting detail
Value for this model
Panel-mounting thread
M20 × 1.5
Panel opening diameter
Ø20 mm
Maximum panel thickness
6 mm
Body mounting holes
3 × Ø4.3 mm
D and K are diameter references. P marks the exhaust connections and Q the supply/work connections. Retain or remove the mounting gasket according to the panel thickness and the catalog installation detail. A dash in the QB table cell means that no value is specified; it is not a zero dimension.
For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.
Flow and Performance Reference
Parameter
Details
Printed technical-table reference
4H31010
Reference effective area
28 mm²
Reference Cv
1.65
Plotted curve model
4H31010
Chart vertical axis
Operating pressure, MPa; labeled range 0–0.7 MPa
Chart horizontal axis
Air flow, L/min; labeled range 0–3200
Curve conditions
Curves plotted across the shown operating-pressure range; individual curves have no separate printed labels
These numerical flow references apply to the explicitly printed models. The catalog does not separately rate every return, center or port variant. The plotted two-position curve is not a separate performance guarantee for a three-position configuration. AirTAC laboratory flow measurements are used to calculate the effective area and Cv; chart limits are not rated flow values.
Internal Components
The numbered items below reproduce the catalog internal-structure reference. Item numbers identify parts in the illustration; they are not quantities, replacement-kit order codes or a list of separately supplied accessories. The source uses 4H210 and 4HA230C reference sections; return and positioning components depend on the selected construction.
Catalog item number
Component name
1
Round-head screw
2
Bottom cover
3
Body
4
O-ring
5
Spool
6
Top cover
7
Round-head screw
8
Shaft
9
Socket set screw
10
Spring
11
Steel-ball sleeve
12
Steel ball
13
E-clip
14
Side cover
15
Spring
16
Return holder
Series Ordering Options
4H denotes manual return and 4HA denotes spring return. Size 200 offers 1/8 and 1/4 supply/work ports; size 300 offers 1/4 and 3/8. Function 10 is 5/2; 30C is 5/3 closed center; 30E is 5/3 exhaust center. PT is the default thread; G and NPT are alternatives. The return construction and center function in the current SKU are the ordered configuration. The page does not publish a separate accessory-kit order code or kit quantity.