AirTAC 4V230C-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B)
The AirTAC AirTAC 4V230C-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B) is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with 230C08B 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 size230C08B
- Effective area13.6 mm²
- Flow (Cv)0.8
- Series4V200
About the AirTAC 4V230C-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B)
The 4V230C-08B is a 5/3-way double-solenoid pneumatic valve that directs compressed air to double-acting cylinders and actuators, adding a defined center position. When both coils are de-energized, the closed center blocks all ports, trapping air on both sides of the piston to hold the cylinder in place—useful for mid-stroke stops on O32-50 mm bore cylinders.
This DC24V model uses a 3.0 W coil and a terminal-box electrical entry, matching standard industrial 24 VDC control circuits. The 4V200 body delivers a 13.6 mm² effective area (Cv 0.8) and a maximum cycling rate of 3 cycles per second, with an actuation response of 0.05 s or less. The aluminum-alloy body weighs 360 g and carries an IP65 protection rating.
AirTAC 4V230C-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B) Technical Specifications
| Model | AirTAC 4V230C-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B) |
|---|---|
| Series | 4V200 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | 230C08B |
| Exhaust port | 230C08B |
| 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-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B)
| 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. |
| -230C08B | 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-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B) Is Used
Mid-Stroke Clamping
Holds a clamp cylinder at an intermediate position to secure a part for secondary machining, then continues the stroke once the operation completes.
Stop-and-Hold Gates
Controls a pneumatic gate on a conveyor lane, stopping the cylinder mid-travel to meter product flow without drifting under load.
Assembly Presses
Positions a press cylinder at a precise mid-point for a pre-press dwell, ensuring consistent insertion depth before the final pressing stroke.
Is the AirTAC 4V230C-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B) the Right Valve?
Choose the 4V230C-08B when your double-acting cylinder needs to pause and hold position mid-stroke without drifting—the closed center blocks all flow at rest. If you only need end-to-end motion, a 5/2 model like the 4V210 or 4V220 saves cost and offers a higher Cv of 1.0. For smaller O20-25 mm cylinders, the 4V100 series (Cv 0.6) is a lighter fit; for larger O40-63 mm bores or faster cycle times, step up to the 4V300 (Cv 1.65).
When replacing an existing valve, match five points: 4V200 body size, 5/3 closed-center function, 1/4 inch PT port, DC24V coil voltage, and terminal-box entry. The valve can be mounted singly or on a manifold base, and the IP65 enclosure suits dusty or washdown-adjacent machine zones.
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-08B Solenoid Valve, 5/3-way, closed center, PT1/4, DC24V, terminal entry (4V230C08B) FAQ
The closed-center spool blocks all ports (P, A, B, EA, EB), trapping compressed air on both sides of the piston. The cylinder stops and holds its current position, though for suspended loads a separate mechanical brake or pilot-operated check valve is required for guaranteed holding.
It will work, but the 4V230C is sized for O32-50 mm double-acting cylinders. On very small O16-20 mm bores, the 13.6 mm² effective area (Cv 0.8) may cause overspeed; a 4V100-series 5/3 valve (Cv 0.6) is a better match for those smaller actuators.
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