The AirTAC Airtac 4V Solenoid Valves 4V230P08C-W is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with W 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.
The 4V230P-08C-W is the external-pilot (-W) version of AirTAC's 5/3 pressure-center valve in the 4V200 mid-body class. Fitted with an AC110V coil rated at 4.5 VA in a terminal-box entry, it switches compressed air to a double-acting cylinder or actuator through PT 1/4" ports. In the center position both cylinder ports A and B are pressurised, so the actuator is held against drift from either direction while exhaust stays blocked.
Because this SKU uses an external pilot supply, the spool is shifted by pilot air fed to a separate pilot port rather than tapped from the main line. That keeps switching dependable where main-line pressure dips, sags under load, or runs in low-pressure and vacuum circuits. The pressure-center spool gives an effective area of 13.6 mm2 (Cv 0.8) with a 3 cycle/sec maximum frequency, and the whole 360 g valve responds in 0.05 s or less. Like all 4V200 bodies it is IP65 (DIN40050), carries a locking or non-locking manual override, and mounts on a base for an integrated manifold group. It suits roughly O32-50 mm double-acting cylinders.
| Model | Airtac 4V Solenoid Valves 4V230P08C-W |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | W |
| Exhaust port | W |
| 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.
| 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.
| 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. |
| -W | 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.
The external pilot port lets the 5/3 spool change over even when the main line runs at reduced pressure or under vacuum, where an internally piloted valve would fail to shift.
Pressure-center hold on both cylinder ports keeps a pusher, lift, or nesting fixture pressurised from both sides during a stopped mid-cycle state, while the AC110V terminal box ties straight into standard control panels.
With Cv 0.8 flow and a 0.05 s response, this valve cycles O32-50 mm double-acting clamp and eject cylinders up to 3 times per second on packaging and handling equipment.
Match five points when replacing: 4V200 body, 5/3 pressure-center double-solenoid function, 1/4" PT port, AC110V coil, and terminal-box entry - plus the -W external-pilot option, which matters if your circuit cannot guarantee main-line pressure at the pilot stage. If your cylinder does not need a center function, the 5/2 double-solenoid 4V220 in this same body flows more (17.0 mm2, Cv 1.0, 5 cycle/sec). Step down to the 4V100 (Cv 0.6) for small bores, or up to the 4V300 (Cv 1.65) for larger cylinders and faster cycling.
A pressure center suits actuators that must resist movement from both ends while stalled, but it is not a certified brake. Where a suspended or hazardous load demands guaranteed holding, add a pilot-operated check valve at the cylinder ports or a mechanical brake. For multiple valves in one compact block, specify this model on a manifold base instead of individual piping.
Quick checklist
It directs compressed air to double-acting cylinders and actuators in the O32-50 mm bore range. The 5/3 pressure-center spool has an effective area of 13.6 mm2 (Cv 0.8) versus 17.0 mm2 (Cv 1.0) for the 5/2 version of this body, and a 3 cycle/sec maximum frequency instead of 5, because the center-position flow paths restrict the passage.
-W is the factory external-pilot option: pilot air for shifting the spool comes from a dedicated external port instead of being taken internally from the main supply. Choose it when your main-line pressure can drop too low to shift the valve reliably - for example in low-pressure or vacuum circuits, or on lines that sag under peak demand. Everything else matches the standard 4V230P-08C: 5/3 pressure center, PT 1/4" ports, AC110V 4.5 VA coil, and terminal-box entry.
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