AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI)
The AirTAC AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI) is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with 230C08EI ports and an effective area of 13.6 mm² (Cv 0.8). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
- Valve type5/3-way
- Function5/3 double solenoid — Closed center
- Port size230C08EI
- Effective area13.6 mm²
- Flow (Cv)0.8
- Series4V200
About the AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI)
The 4V230C-08EI is a 5/3-way double-solenoid valve that directs compressed air to double-acting cylinders with a closed-center function—when both solenoids are de-energised, all ports are blocked, locking the cylinder in place to hold a mid-stroke position. This model is pre-wired with a 0.5 m flying lead via a DIN-style grommet entry and operates on a 24 V AC coil (5.0 VA), making it simple to integrate into machinery where a terminal box is impractical.
Built on the 4V200 body, it delivers an effective area of 13.6 mm² (Cv 0.8) and suits ~Ø32–50 mm cylinders. The spool responds in 0.05 s or less, and the IP65-rated enclosure ensures reliable service in washdown or dusty environments. The closed center is ideal for clamping or vertical-load applications where drift must be minimised during a power interruption.
AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI) Technical Specifications
| Model | AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI) |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | 230C08EI |
| Exhaust port | 230C08EI |
| Effective area (Cv) | 13.6 mm² (Cv 0.8) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Pilot type | Internal / external pilot |
| Operating pressure | 0.15 – 0.8 MPa |
| Proof pressure | 1.2 MPa |
| Max frequency | 3 cycle/sec |
| Response time | ≤ 0.05 s (activating) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Weight | 360 g |
Specifications follow the official AirTAC 4V series datasheet. Lubrication not required. Confirm coil voltage and thread (PT / NPT / G) against the product label before wiring.
Flow & Coil Options
| Effective area | 13.6 mm² |
|---|---|
| Flow coefficient | Cv 0.8 |
| Response time | ≤ 0.05 s |
| Coil power | AC 4.5 VA · DC24V 3.0 W · DC12V 2.5 W |
| Protection / insulation | IP65 (DIN40050), B-class |
| Voltage options | DC24V, DC12V, AC110V, AC220V |
| Manual override | Yes (locking / non-locking) |
Size the valve so effective area / Cv is not the bottleneck for your cylinder bore and speed. Undersized valves slow the actuator. Note 5/3 (center) versions have a smaller effective area than the 5/2 of the same body size.
Model Code: AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI)
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| 2 | Body size (4V200) — sets port & flow. |
| 3 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -230C08EI | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4V210 (single), 4V220 (double), 4V230C/E/P (5/3 center). Add the voltage suffix when ordering.
Where the AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI) Is Used
Mid-Stroke Clamping
Holds a pneumatic clamp at a precise intermediate position during a two-step assembly process. The closed center prevents drift while the operator positions the next component.
Vertical Lift Positioning
Stops a lightly loaded vertical lift at a mid-level station. The blocked ports resist gravity-induced creep, though a mechanical brake is advised for heavy suspended loads.
Material Handling Gates
Controls a diverter gate that must pause halfway to accumulate product. The AC24V grommet wiring simplifies connection to a remote I/O block on the conveyor frame.
Is the AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI) the Right Valve?
Choose the 4V230C-08EI when your application needs a cylinder to stop and hold firmly at any point in its stroke, not just at the ends. The closed-center spool blocks inlet and exhaust, providing a passive hold that resists movement better than an exhaust-center valve. For smaller Ø20–25 mm cylinders, step down to the 4V100 series (Cv 0.6) to avoid oversizing; for faster cycling on larger bores, the 4V300 (Cv 1.65) is a better match.
When replacing an existing valve, match all five points: 4V200 body size, 5/3 closed-center function, 1/4-inch PT port, AC24V coil voltage, and the grommet-style electrical entry. The 4V200 series also supports manifold mounting—order a base to gang multiple valves and simplify plumbing. A dedicated pilot-operated check valve at the cylinder ports is recommended if the load must be held indefinitely or for personnel safety.
Quick checklist
- ✓ Required flow (Cv) for cylinder & speed
- ✓ Function: single / double / 5-3 center
- ✓ Coil voltage (DC24 / AC220 …)
- ✓ Port thread (M5 / 1/8 / 1/4 / 3/8 / 1/2)
- ✓ Single valve or manifold base?
Installation & Wiring Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.8 MPa operating pressure.
- check Match coil voltage to your controller output.
- check Use the manual override to test before powering.
- check Fit silencers or fittings to the exhaust ports.
- check Wiring by qualified personnel per AirTAC docs.
AirTAC 4V230C-08EI Solenoid Valve, 5/3-way, closed center, PT1/4, AC24V, grommet entry (4V230C08EI) FAQ
With a Cv of 0.8 and 13.6 mm² effective area, it is sized for double-acting cylinders roughly Ø32–50 mm. It will cycle a Ø50 mm bore at moderate speed; for a Ø63 mm cylinder at high speed, consider the larger 4V300 series (Cv 1.65).
If both solenoids lose power, the spool springs to the center position where inlet, outlet, and exhaust ports are all blocked. This traps air in the cylinder, holding the piston near its last position. It is not a safety-rated lock—add a mechanical brake for fall-protection duties.
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Related AirTAC 4V Valves
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