The AirTAC Airtac 4V Solenoid Valves 4V430C15C-W is a genuine 5/3-way 5/3 double solenoid — closed center solenoid valve with W ports and an effective area of 40.0 mm² (Cv 2.35). It is an internally piloted spool valve that directs compressed air to double-acting cylinders and actuators.
The AirTAC 4V430C15C-W is the 5/3 closed-center version of the 4V400 body, built as a double-solenoid valve with a 1/2 inch PT port and an AC110V coil. Each solenoid pulse shifts the spool and sends air to one side of a double-acting cylinder while venting the other; with both coils de-energised the spool sits at center, where supply, the two cylinder ports and exhaust are all blocked, so the actuator stops and holds where it was. At the center detent nothing bleeds away, which is what distinguishes 30C from the exhaust (30E) and pressure (30P) 5/3 options on this body. Flow capacity is 40.0 mm2 effective area (Cv 2.35), a step below the 48.0 mm2 / Cv 2.82 of the 5/2 models on the same body, because the extra center land narrows the flow path. The spool-and-sliding-column design responds in 0.05 s or less and cycles up to 3 per second, and the AC110V coil draws only 4.5 VA. The valve weighs 770 g, carries an IP65 terminal box and suits double-acting cylinders of roughly Dia80 to Dia125 mm. This SKU is the -W build of the 4V430C-15C configuration.
| Model | Airtac 4V Solenoid Valves 4V430C15C-W |
|---|---|
| Series | 4V400 solenoid valve (spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double solenoid — Closed center |
| Port size | W |
| Exhaust port | W |
| Effective area (Cv) | 40.0 mm² (Cv 2.35) |
| 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 | 770 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 | 40.0 mm² |
|---|---|
| Flow coefficient | Cv 2.35 |
| 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. |
| 3 | Function: 1 = single 5/2, 2 = double 5/2, 3 = 5/3. |
| -W | 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.
A Dia100 mm press cylinder fed by Cv 2.35 flow can be parked between positions by cutting both coils; closed center blocks the ports so the slide pauses for loading. For a heavy or suspended tool, back this up with pilot-operated check valves at the cylinder, since the valve alone is not a certified brake.
Scissor and lift tables built on Dia80-125 mm cylinders need a definite stop at each height. With 40.0 mm2 effective area the valve fills the bore quickly for the lift, then blocks both cylinder ports at center so the table waits at the transfer station without drifting.
A rotary swing clamp of roughly Dia80-100 mm holds a machined part while the drill cycles. Closed center lets the operator freeze the clamp arm at any intermediate angle for setup, and the 0.05 s response keeps re-clamping snappy between parts.
Size down before you size up: if your cylinder is below about Dia80 mm, the 4V300 body at Cv 1.65 will cycle it faster and cost less; the 4V400 is the largest 4V body, so for flow beyond Cv 2.35 move to a larger valve series or split the load across an integrated manifold group on a common base. Pick this 30C version when a mid-stroke stop must actually stay put; choose 30E if the load should drift freely at center, or the 5/2 double-solenoid 4V420 (Cv 2.82) if you only need end-to-end positions with memory. For a drop-in replacement, match all five code segments: body size 4V400, function 30C, 1/2 inch port with PT (Rc) taper thread, AC110V coil, and terminal-box entry - then confirm any suffix such as -W against the nameplate of the unit being replaced.
Quick checklist
It is a 5/3 closed-center, double-solenoid directional valve for double-acting cylinders and actuators of roughly Dia80-125 mm bore. Core figures in one place: effective area 40.0 mm2 (Cv 2.35), max frequency 3 cycles per second, activating response 0.05 s or less, operating pressure 0.15-0.8 MPa with 1.2 MPa proof pressure, AC110V coil at 4.5 VA, IP65 terminal box, weight 770 g, air filtered to 40 um.
At center the spool blocks supply, both cylinder ports and exhaust, so a mid-stroke cylinder is hydraulically (pneumatically) locked against small drift. That hold depends on seal integrity and balanced pressure, so it is not a substitute for a certified safety device: for suspended loads or personnel-protection positions, fit pilot-operated check valves at the cylinder ports or a mechanical brake, with this valve as the control element only.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 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.