AirTAC 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F)
The AirTAC AirTAC 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F) is a genuine 5/2-way double solenoid (memory) solenoid valve with 42015F 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 size42015F
- Effective area48.0 mm²
- Flow (Cv)2.82
- Series4V400
About the AirTAC 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F)
The 4V420-15F is a 5/2-way double-solenoid pneumatic directional valve that controls double-acting cylinders and rotary actuators on heavy-duty automation. Its memory-type spool stays locked in the last pulsed position when both coils are de-energised, so the actuator holds its state through a power cycle without consuming any holding current—a critical advantage for energy-sensitive or intermittent-duty stations.
Built on the largest 4V body, this DC12V terminal-box model delivers a Cv of 2.82 (48.0 mm² effective area) and cycles at up to 3 times per second. The 12 V DC coil draws just 2.5 W, keeping heat rise low inside a sealed IP65 enclosure. At 720 g, it pairs naturally with bore sizes in the Ø80–125 mm range, giving fast 0.05 s response for clamping beams, hopper gates, and large slide tables.
AirTAC 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F) Technical Specifications
| Model | AirTAC 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F) |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Double solenoid (memory) |
| Port size | 42015F |
| Exhaust port | 42015F |
| 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 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F)
| 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. |
| -42015F | 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 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F) Is Used
Large Part Ejectors
A 4V420-15F drives the main eject cylinder on a palletising conveyor. The memory spool keeps the pusher retracted during a power-safe stop, preventing it from drifting into the product path.
Hydraulic-Press Guard Interlocks
Controlling a heavy safety gate on a forming press, the valve holds the gate open after a single pulse. No holding current is needed during the long forming cycle, reducing coil heat and energy draw.
Truck-Loading Boom Positioning
On a mobile loading arm, the 12 V DC coil runs directly from the vehicle battery. The double-solenoid memory keeps the boom angle locked during transport without draining power.
Is the AirTAC 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F) the Right Valve?
Choose the 4V420-15F when you need a 5/2 double-solenoid valve that holds position without continuous power. Its 2.82 Cv suits double-acting cylinders roughly Ø80–125 mm; if your actuators are smaller (Ø40–63 mm), stepping down to a 4V300-series valve with Cv 1.65 often yields crisper response and lower air consumption. For still-larger bores beyond Ø125 mm, a higher-flow valve family or a manifolded pair is the next logical step.
When replacing an existing valve, match five points: body size (4V400), function (5/2 double-solenoid memory), port and thread (1/2 in, PT tapered), coil voltage (DC12V), and electrical entry (terminal box). Confirming all five ensures the spool memory behaviour, flow capacity, and wiring footprint drop straight into your manifold or sub-base without re-engineering the circuit.
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 4V420-15F Solenoid Valve, 5/2-way, PT1/2, DC12V, terminal entry (4V42015F) FAQ
With a Cv of 2.82 and 48.0 mm² effective area, it is typically matched with double-acting cylinders in the Ø80–125 mm range. The 1/2 in ports and 3 cycles/sec maximum frequency suit large-bore, moderate-speed applications such as clamps, gates, and material-handling rams.
The spool is shifted by a momentary pulse to either coil and remains in that position through balanced pressure and land friction. No spring, residual magnetism, or magnetic latch is involved. Because it does not require continuous current, the DC12V coil (2.5 W) stays cool, but note that the valve alone is not a safety brake—add a pilot-operated check valve if you need guaranteed load holding.
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