Airtac 4V400 Solenoid Valve 4V42015AG
The AirTAC Airtac 4V400 Solenoid Valve 4V42015AG is a genuine 5/2-way double solenoid (memory) solenoid valve with 42015AG ports and an effective area of 48.0 mm² (Cv 2.82). 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 size42015AG
- Effective area48.0 mm²
- Flow (Cv)2.82
- Series4V400
About the Airtac 4V400 Solenoid Valve 4V42015AG
The 4V420-15AG is a double-solenoid 5/2-way pneumatic directional valve built on the largest 4V body size. It directs compressed air to double-acting cylinders and actuators, and because it uses two coils, the spool stays locked in its last pulsed position even when electrical power is removed—a true memory function held by spool friction and balanced pressure, not by a spring or magnet.
This specific configuration comes with a 1/2-inch G (BSPP parallel) thread and an AC220V coil drawing 4.5 VA. The 4V400 body delivers an effective area of 48.0 mm² (Cv 2.82), suiting it to ~Ø80–125 mm bore cylinders. Response time is 0.05 seconds or less, and the aluminium-alloy body weighs 720 g with IP65 protection.
Airtac 4V400 Solenoid Valve 4V42015AG Technical Specifications
| Model | Airtac 4V400 Solenoid Valve 4V42015AG |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Double solenoid (memory) |
| Port size | 42015AG |
| Exhaust port | 42015AG |
| Effective area (Cv) | 48.0 mm² (Cv 2.82) |
| 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 | 720 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 | 48.0 mm² |
|---|---|
| Flow coefficient | Cv 2.82 |
| 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 4V400 Solenoid Valve 4V42015AG
| 4V | Solenoid valve, spool type, 4-series. |
|---|---|
| 4 | Body size (4V400) — sets port & flow. |
| 2 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -42015AG | Port thread: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
Related: 4V410 (single), 4V420 (double), 4V430C/E/P (5/3 center). Add the voltage suffix when ordering.
Where the Airtac 4V400 Solenoid Valve 4V42015AG Is Used
Large Press Control
Commands a big double-acting press cylinder. The memory function keeps the ram in position if the control panel loses power, preventing an uncommanded retract.
Palletising Machinery
Directs air to the lift and shift axes on a palletiser. The 1/2-inch G ports and Cv 2.82 flow capacity provide the speed needed for heavy loads on a high-cycle line.
Material Handling Lift
Operates a double-acting lift cylinder on a large transfer station. The AC220V coil integrates easily into a standard factory panel, and the memory spool holds the load's vertical position during an E-stop event.
Is the Airtac 4V400 Solenoid Valve 4V42015AG the Right Valve?
Choose the 4V420-15AG when your application needs a 5/2 valve that must hold its last position after a power cut, and you are running a 220 V AC supply with G-thread plumbing. Its Cv of 2.82 makes it the right fit for larger double-acting cylinders around 80 to 125 mm bore. If you are driving a smaller cylinder (roughly Ø40–63 mm), stepping down to a 4V300 series valve (Cv 1.65) will give you crisper response and a more compact manifold.
For a correct replacement, match five points: the 4V400 body size, the double-solenoid 5/2 function, the 1/2-inch G port thread, the AC220V coil voltage, and the terminal-box electrical entry. The 4V400 is the largest 4V body; if you need still higher flow, consider moving to a larger valve series or ganging multiple valves on a manifold.
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 4V400 Solenoid Valve 4V42015AG FAQ
With an effective area of 48.0 mm² (Cv 2.82), this 4V400-body valve suits double-acting cylinders in the ~Ø80–125 mm range. It provides ample flow for rapid stroking of large actuators without an excessive pressure drop across the valve.
The spool is shifted by a momentary electrical pulse to either coil. Once shifted, it remains in that position purely through land friction and balanced air pressure—there is no spring to return it and no holding current required. It is not a magnetic latch; the hold is mechanical and pneumatic.
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