AirTAC 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM)
The AirTAC AirTAC 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM) is a genuine 5/3-way 5/3 double solenoid — exhaust center solenoid valve with AM ports and an effective area of 21.3 mm² (Cv 1.25). 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 — Exhaust center
- Port sizeAM
- Effective area21.3 mm²
- Flow (Cv)1.25
- Series4V300
About the AirTAC 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM)
The AirTAC 4V330E08A-AM is a 5/3-way double-solenoid valve built on the 4V300 body, sized for 1/4 inch PT ports and fitted from the factory with an AMISCO (Italian) solenoid coil on a 220V AC supply through a wired terminal box. It directs compressed air to double-acting cylinders and actuators, and its exhaust-center behaviour is the defining trait: at center, both cylinder ports A and B vent to atmosphere, so the actuator floats free and can be moved by hand or by load, then re-grips the instant either solenoid is pulsed.
Flow sits in the 4V300 5/3 class at an effective area of 21.3 mm2 (Cv 1.25), a good match for roughly O50-80 mm bores where you want the cylinder to relax rather than lock between strokes. Like every 4V300 valve it switches in 0.05 s or less, runs on 0.15-0.8 MPa filtered air (40 um element), carries an IP65 terminal box and tips the scale at 450 g. Note that the AMISCO coil replaces the standard AirTAC coil, so its exact VA rating should be confirmed with us before ordering.
AirTAC 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM) Technical Specifications
| Model | AirTAC 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM) |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Exhaust center |
| Port size | AM |
| Exhaust port | AM |
| Effective area (Cv) | 21.3 mm² (Cv 1.25) |
| 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 | 450 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 | 21.3 mm² |
|---|---|
| Flow coefficient | Cv 1.25 |
| 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 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM)
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| 3 | Body size (4V300) — sets port & flow. |
| 3 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -AM | 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 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM) Is Used
Manual-adjust workstations
Exhaust center lets an operator reposition or jog a double-acting cylinder by hand between clamping strokes, ideal for fixtures and assembly jigs that need mid-cycle adjustment.
Material handling diverters
Pushers and diverters on packaging or conveyor lines can idle in a free-floating state at center, then snap to action with a single pulse to either AC220V solenoid.
Light press and clamp circuits
On O50-80 mm bore cylinders in machine-tool and light-press duty, the Cv 1.25 flow class keeps stroke speeds practical while the float position unloads the tool between cycles.
Is the AirTAC 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM) the Right Valve?
Choose this 4V330E08A-AM when your circuit needs a mid-cycle float position on a 1/4 inch PT port at 220V AC. If your bore is smaller (below about O50 mm), the 4V200 at Cv 1.0 is the leaner choice; for bores beyond O80 mm step up to the 4V400 at Cv 2.82. Among center types, pick exhaust (E) for free movement, closed (C) to hold position, or pressure (P) to keep both sides live. A single valve suits standalone actuators, while a manifold base lets several 4V300 valves share one supply footprint.
For a drop-in replacement, match five points: body size (4V300), function (5/3 exhaust center), port and thread (1/4 inch PT, or specify G/NPT), coil voltage (AC220V) and electrical entry (terminal). If the original carried the -AM suffix, order the same AMISCO-coil variant again.
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 4V330E-08 Solenoid Valve, 4V300 Series (4V330E08A-AM) FAQ
It is rated for double-acting cylinders and actuators only. With 21.3 mm2 effective area (Cv 1.25) it comfortably serves bores in the ~O50-80 mm range and switches up to 3 cycles per second, with a response time of 0.05 s or less. Single-acting cylinders need a 3/2 valve, not this 5/3.
The -AM option means this valve ships with an AMISCO (Italian) coil instead of the standard AirTAC coil on the 220V AC supply; the body, ports and flow are identical, but confirm the AMISCO coil's exact VA rating with us. At center both cylinder ports exhaust, so the actuator floats freely and will not resist external forces. If the position must be secured against gravity or suspended loads, add a pilot-operated check valve at the cylinder ports or a mechanical brake, since the valve alone does not provide that.
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