AirTAC 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B)
The AirTAC AirTAC 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B) is a genuine 5/2-way double solenoid (memory) solenoid valve with 32008B ports and an effective area of 28.0 mm² (Cv 1.65). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
- Valve type5/2-way
- FunctionDouble solenoid (memory)
- Port size32008B
- Effective area28.0 mm²
- Flow (Cv)1.65
- Series4V300
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B)
The AirTAC 4V320-08B is a 5/2-way double-solenoid directional control valve built on the 4V300 body platform. It directs compressed air to double-acting cylinders and actuators using a memory-spool design: a momentary pulse to coil 14 shifts the spool, and it remains in that last-commanded position even after power is removed, held by land friction and balanced pressure. This 1/4-inch PT-ported, DC24V terminal-box version is ideal for applications where the valve state must survive a control-power cycle.
The 4V320-08B delivers a 28.0 mm² effective area (Cv 1.65) and can cycle at up to 4 times per second, suiting it to ~Ø50-80 mm bore cylinders. Its DC24V coil draws just 3.0 W, and the aluminum-alloy body houses a spool that responds in 0.05 seconds or less. IP65-rated and manifold-ready, it provides a compact, energy-efficient pilot for larger pneumatic workholding and positioning tasks.
AirTAC 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B) Technical Specifications
| Model | AirTAC 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B) |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Double solenoid (memory) |
| Port size | 32008B |
| Exhaust port | 32008B |
| Effective area (Cv) | 28.0 mm² (Cv 1.65) |
| 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 | 4 cycle/sec |
| Response time | ≤ 0.05 s (activating) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Weight | 400 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 | 28.0 mm² |
|---|---|
| Flow coefficient | Cv 1.65 |
| 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 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B)
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| 3 | Body size (4V300) — sets port & flow. |
| 2 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -32008B | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4V310 (single), 4V320 (double), 4V330C/E/P (5/3 center). Add the voltage suffix when ordering.
Where the AirTAC 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B) Is Used
Clamp & Fixture Control
The memory spool holds a pneumatic clamp in its last state—open or closed—even if the machine E-stops, preventing unintended release of the workpiece during a power interruption.
Material Handling Gates
Operates diverter gates and stops on conveyor lines. A pulse from the PLC sets the gate direction; the valve stays put until the next deliberate command, simplifying the control sequence.
Press & Forming Machines
Drives mid-bore press cylinders where a constant signal is impractical. The 4 c/s cycle rate and 3.0 W DC coil suit repetitive forming and stamping sequences with short dwell times.
Is the AirTAC 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B) the Right Valve?
Choose the 4V320-08B when your double-acting cylinder needs a 5/2 valve that holds its last position on power loss without a constant signal. If your bore is under ~Ø40 mm, the smaller 4V200 series (Cv 1.0) may be a better match; for bores above ~Ø80 mm, step up to the 4V400 (Cv 2.82) for faster fill. This double-solenoid memory function is ideal when you cannot maintain a continuous electrical signal, but it is not a safety holding device—add a pilot-operated check valve at the cylinder ports if the load must be locked in place.
For a drop-in replacement, match five points: body size (4V300), function (double solenoid 5/2), port and thread (1/4-inch PT), coil voltage (DC24V), and electrical entry (terminal box). The 4V320-08B also mounts on a common sub-base, so you can build a multi-valve manifold without re-plumbing individual stations.
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 4V320-08B Solenoid Valve, 5/2-way, PT1/4, DC24V, terminal entry (4V32008B) FAQ
Its 28.0 mm² effective area (Cv 1.65) provides sufficient flow for double-acting cylinders in the ~Ø50-80 mm range. For smaller bores it will work but may be oversized; for larger bores a 4V400 valve (Cv 2.82) will give better speed.
The spool holds its last shifted position, but this is not a guaranteed load-holding mechanism. If a vertical or suspended load must not drift, you need a pilot-operated check valve or a mechanical brake at the cylinder—the valve alone is a directional control, not a safety lock.
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Related AirTAC 4V Valves
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