AirTAC 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-AM)
The AirTAC AirTAC 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-AM) is a genuine 5/3-way 5/3 double solenoid — closed 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 — Closed center
- Port sizeAM
- Effective area21.3 mm²
- Flow (Cv)1.25
- 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 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-AM)
The AirTAC 4V330C08A-AM is a 5/3-way closed-center double solenoid valve built on the 4V300 body with a PT-threaded 1/4in port and an AC220V terminal-box coil. This -AM version carries an AMISCO (Italian) solenoid coil fitted at the factory in place of the standard AirTAC coil; the valve body, spool function and flow path are otherwise identical to the base 4V330C-08A. With both solenoids de-energised, the closed center blocks all five ports, so a double-acting cylinder connected to it stops and holds roughly where it was when the signal was removed. Flow capacity sits at an effective area of 21.3 mm2 (Cv 1.25), the class that matches cylinders in the ~O50-80 mm bore range, and the spool switches in 0.05 s or less.
In the 4V300 family this 5/3 body weighs 450 g and cycles up to 3 times per second. The aluminum-alloy valve runs on filtered air (40 um element) at 0.15-0.8 MPa, needs no lubrication, and carries IP65 (DIN40050) protection with class B insulation. Manual override is fitted for commissioning and fault-finding, and the valve bolts onto a base plate so several can be joined into an integrated manifold group.
AirTAC 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-AM) Technical Specifications
| Model | AirTAC 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-AM) |
|---|---|
| Series | 4V300 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed 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 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-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 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-AM) Is Used
Mid-stroke stopping on presses
Closed-center blocking lets a double-acting press or forming cylinder pause at an intermediate position between cycles, with 21.3 mm2 (Cv 1.25) flow feeding bores around O50-80 mm.
Clamping and fixture holding
With all ports blocked at center, clamp cylinders on jigs and fixtures stay pressurised on both sides while the AC220V coil is de-energised, holding the part during inspection or handling.
Machine tool axis positioning
On machine tools and transfer units, the two-solenoid memory spool with closed center holds an axis stationary between commanded moves, switching in 0.05 s or less at up to 3 cycles per second.
Is the AirTAC 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-AM) the Right Valve?
Size by bore first: if your cylinder is smaller than the ~O50-80 mm range this valve suits, the 4V200 (Cv 1.0) is the more economical step-down; if you move up to larger bores, step up to the 4V400 (Cv 2.82). Choose this 30C closed-center function when the actuator must stop and stay put at mid-stroke; pick the 30E exhaust center if the cylinder should float freely, or the 30P pressure center if both sides should stay live. A single valve on its own threads suits one actuator; a manifold base suits multi-valve stations.
When replacing an existing unit, match all five points: body size (4V300), function (30C), port and thread (1/4in PT), coil voltage (AC220V) and electrical entry (terminal box). For an exact like-for-like swap this -AM variant replaces a standard 4V330C-08A electrically as well - just confirm the AMISCO coil rating with us if your control circuit is sensitive to inrush or holding VA, since our published 4V300 coil data covers the standard AirTAC coil only.
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 4V330C-08 Solenoid Valve, 4V300 Series (4V330C08A-AM) FAQ
It directs compressed air to double-acting cylinders and actuators in the ~O50-80 mm bore range. As a 5/3 closed-center valve it passes an effective area of 21.3 mm2 (Cv 1.25) with a 1/4in PT port, and switches up to 3 cycles per second. AirTAC publishes a flow chart rather than a single L/min figure, so size from the Cv.
This unit is a standard 4V330C-08A fitted at the factory with an AMISCO (Italian) solenoid coil instead of the standard AirTAC coil. The valve body, 5/3 closed-center function, ports and flow are unchanged, and the ordered voltage is still AC220V with a terminal-box entry. Our datasheet does not list the AMISCO coil's own VA rating, so confirm the exact electrical rating with us if your control circuit needs it.
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Related AirTAC 4V Valves
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