AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015)
The AirTAC AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015) is a genuine 5/2-way single air pilot (spring return) air pilot valve with PT1/2 ports. It is a sliding-spool valve switched by a compressed-air signal instead of a coil, and it directs air to double-acting cylinders and actuators. The 4A400 body is published at 48.0 mm² effective area (Cv 2.82).
- Valve type5/2-way
- ActuationAir pilot
- Port sizePT1/2
- Effective area48.0 mm²
- Flow (Cv)2.82
- Series4A400
- 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 4A410-15 Pneumatic Valve, 4A400 Series (4A41015)
The AirTAC 4A41015 is the single-pilot 5/2 model of the 4A400 body, AirTAC's largest air-pilot valve. It directs compressed air to a double-acting cylinder or actuator, pressurising one port while exhausting the other, and reverses the flow each time the spool is thrown. With 1/2" PT (Rc tapered) ports throughout, it is switched entirely by a compressed-air signal applied to the exterior pilot port - there is no coil, no wiring and nothing electrical in the valve to fail.
As a single-pilot valve it works on spring return: the pilot signal must be held on for as long as you want the cylinder extended, and when the signal is released the internal spring pushes the spool back to the rest position. The published figures put it in the top flow class of the 4A range - effective area 48.0 mm2 (Cv 2.82), 3 cycle/sec no-load, 0.15-0.8 MPa operating pressure - and AirTAC rates it to suit cylinders of roughly Dia 80-125 mm. The aluminium body weighs 555 g and the supplied air must be filtered to 40 um. PT tapered threads seal on the flanks, so wrap the ports with PTFE tape at fitting.
AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015) Technical Specifications
| Model | AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015) |
|---|---|
| Series | 4A400 air pilot valve (sliding-spool type) |
| Valve type | 5/2-way |
| Function | Single air pilot (spring return) |
| Actuation | Single air pilot, spring return (exterior air control) |
| Port size | PT1/2 |
| Exhaust port | PT1/2 |
| Thread standard | PT (Rc tapered) |
| Effective area (Cv) | 48.0 mm² (Cv 2.82) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 0.8 MPa (21 – 114 psi) |
| Proof pressure | 1.2 MPa (175 psi) |
| Max frequency | 3 cycle/sec (no load) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Lubrication | Not required |
| Weight | 555 g |
Specifications follow the official AirTAC 4A series datasheet. Max frequency is the no-load figure. Confirm the thread standard (PT / G / NPT) against the product label before piping.
Flow & Piloting
| Effective area | 48.0 mm² |
|---|---|
| Flow coefficient | Cv 2.82 |
| Control signal | Compressed air (exterior pilot) |
| Pilot ports | One pilot port; spring returns the spool |
| Electrical parts | None — no coil, no wiring, no IP rating needed |
| Manifold base | 400M (up to 8 stations) |
Because there is nothing electrical in the valve, the 4A suits wash-down, explosive-atmosphere and high-vibration areas where a solenoid would need certification. Size the valve so effective area / Cv is not the bottleneck for your bore and speed; the 5/3 centre versions have a smaller effective area than the 5/2 of the same body.
Model Code: AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015)
| 4A | Air pilot valve, sliding-spool, 4-series. |
|---|---|
| 4 | Body size (4A400) — sets port & flow. |
| 10 | Function: 10 = single pilot 5/2, 20 = double pilot 5/2, 30C/E/P = 5/3 closed / exhaust / pressure centre. |
| 15 | Port size: M5 / 06=1/8" / 08=1/4" / 10=3/8" / 15=1/2". |
| (blank) | Thread standard: blank = PT, G = BSPP, T = NPT. This model is PT (Rc tapered). |
Related: 4A410 (single pilot), 4A420 (double pilot, memory), 4A430C/E/P (5/3 centre).
Where the AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015) Is Used
Quarry and mining plant
Crusher gate and chute-door cylinders on quarry plant live in dust, shock and vibration that kills coils. The 4A41015's Cv 2.82 flow shifts Dia 80-125 mm double-acting rams, and with nothing electrical on the valve there is no ignition source near the dust.
Remote field machinery
On irrigation gate lifts, feed wagons and other equipment far from a power cabinet, a single air signal line from a hand valve drives the 4A41015. The spring return guarantees the cylinder retracts whenever the signal drops - even if the air supply is interrupted mid-stroke.
Sawmill log clamps
Sawmill clamp and stopper cylinders are cycled by limit or foot signal valves along the line. At 3 cycle/sec no-load and 48.0 mm2 effective area, this 1/2" PT valve keeps pace with clamp-and-release sequences while sawdust fills the air around it.
Is the AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015) the Right Valve?
Size in both directions before you commit. If your cylinder is Dia 80 mm or smaller and you want quicker cycling, step down to the 4A300 body (Cv 1.65); the 4A400 is the largest 4A body AirTAC makes, so there is no larger air-pilot option in this series - if 48.0 mm2 (Cv 2.82) is still too small for your flow, you move to a different valve family entirely. This 4A41015 is the single-pilot choice: pick it when one signal line should extend the cylinder and a spring should always return it. If you need the spool to stay put between pulses, order the double-pilot 4A420 instead; if you need a mid-position, the 5/3 4A430C/E/P models offer closed, exhaust or pressure centres at Cv 2.35.
An air pilot beats a solenoid wherever electrics are a liability: no coil to burn out, no certification burden in explosive or dust-laden air, no wash-down or vibration problems, and the valve can sit far from any control cabinet on a single signal line. Run one valve per machine, or bank up to eight on a 400M manifold base with a 1/2" common inlet. For replacement work match all four points: body size 4A400, function 10, port 1/2", thread PT.
Quick checklist
- ✓ Required flow (Cv) for cylinder & speed
- ✓ Function: single / double / 5-3 centre
- ✓ Pilot air available at 0.15 MPa or above
- ✓ Port thread (M5 / 1/8 / 1/4 / 3/8 / 1/2)
- ✓ Single valve or 400M manifold base?
Installation & Piloting Notes
- check Use clean air filtered to 40µm or finer.
- check Keep the main line within 0.15 – 0.8 MPa.
- check Drive the pilot port from a 3/2 or 5/2 signal valve.
- check Hold the pilot signal on; releasing it springs the spool back.
- check Fit silencers or fittings to the exhaust ports.
- check Once run on lubricated air, keep lubricating it.
AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015) FAQ
It is a 5/2 single air pilot valve for double-acting cylinders and actuators, sized by AirTAC to suit roughly Dia 80-125 mm bores. Published figures: effective area 48.0 mm2, flow capacity Cv 2.82, maximum frequency 3 cycle/sec (no-load), operating pressure 0.15-0.8 MPa (21-114 psi), proof pressure 1.2 MPa (175 psi), temperature -20 to +70 C, weight 555 g. Air must be filtered to 40 um, and while lubrication is not required, a valve once run on lubricated air must stay on lubricated air.
A 5/2 valve from the function-10 range has one pilot port. Applying a compressed-air signal to that port throws the spool and extends the cylinder; the signal must be held for as long as you want that position. When the signal is released, an internal spring returns the spool and the cylinder retracts. The signal comes from a separate 3/2 or 5/2 valve - hand, foot, mechanical or another air pilot - running off the same filtered supply (40 um element). There is no electrical connection of any kind, so no pilot-pressure figure beyond the valve's own 0.15-0.8 MPa operating range applies. For a replacement, match body 4A400, function 10, 1/2" port and PT thread exactly.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC 4A Valves & Bases
Request a Quote for AirTAC 4A410-15 Pneumatic Valve, 4A400 Series (4A41015)
Send us the quantity, thread standard and destination. We confirm price, stock and lead time — usually within 7-8 hours.