
The AirTAC AirTAC 4V420-15C Solenoid Valve, 5/2-way, PT1/2, AC110V, terminal entry (4V42015C) is a genuine 5/2-way double solenoid (memory) solenoid valve with 42015C 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.
The AirTAC 4V420-15C is a 5/2-way double-solenoid pneumatic valve built on the largest 4V body size, directing compressed air to double-acting cylinders and rotary actuators. Its memory function means the spool stays in its last pulsed position when power is removed—no spring return, no holding current required. This specific model is configured with an AC110V coil drawing 4.5 VA and a PT (Rc tapered) thread on its 1/2-inch ports.
With a substantial effective area of 48.0 mm² (Cv 2.82) and a response time of 0.05 seconds or below, the 4V420-15C suits driving cylinders in the ~Ø80-125 mm range. The aluminum-alloy body weighs 720 g, operates on a 0.15-0.8 MPa pilot pressure, and carries an IP65 protection rating, making it a robust choice for demanding industrial sequences.
| Model | AirTAC 4V420-15C Solenoid Valve, 5/2-way, PT1/2, AC110V, terminal entry (4V42015C) |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/2-way |
| Function | Double solenoid (memory) |
| Port size | 42015C |
| Exhaust port | 42015C |
| 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.
| 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.
| 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. |
| -42015C | 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.
Controls a powerful blast of air to eject heavy or bulky parts from a conveyor. The memory function holds the valve open for a set duration without continuous coil power, reducing energy use in high-cycle sorting systems.
Directs a large-bore clamping cylinder on a press. The double-solenoid memory ensures the clamp stays engaged if a control power dropout occurs, though a pilot-operated check valve is still recommended for suspended load safety.
Operates a double-acting gate cylinder on a bulk material hopper. The AC110V coil integrates easily into common facility power, and the valve's memory holds the gate in its last commanded position during transport.
Choose the 4V420-15C when your application needs a 5/2 valve that must hold its last state without consuming electrical power—ideal for energy-sensitive or intermittent-duty circuits. The double-solenoid memory design eliminates the heat buildup of a continuously energized coil. For smaller cylinders around Ø50-63 mm, stepping down to a 4V300 series valve (Cv 1.65) often provides a better match and faster cycle times.
When replacing an existing valve, verify all five points: the 4V400 body size, the 20 (double-solenoid) function, the 1/2-inch port with PT thread, the AC110V coil voltage, and the terminal-box electrical entry. If you need still greater flow than this largest 4V body offers, consider a manifolded group or a larger valve series.
Quick checklist
With a Cv of 2.82 and an effective area of 48.0 mm², it is sized for double-acting cylinders in the ~Ø80-125 mm range. It provides ample flow for rapid actuation of large clamps, gates, and presses without excessive pressure drop.
The spool is shifted by a momentary pulse to either coil and stays in that position through balanced pressure and land friction—no spring or holding current is used. While it holds position on power loss, it is not a safety device. For critical load-holding, always add a pilot-operated check valve or mechanical brake at the cylinder.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity, coil voltage and destination. We confirm price, stock and lead time — usually within 7-8 hours.