AirTAC 4A210-06 Pneumatic Valve, 4A200 Series (4A21006)
The AirTAC AirTAC 4A210-06 Pneumatic Valve, 4A200 Series (4A21006) is a genuine 5/2-way single air pilot (spring return) air pilot valve with PT1/8 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 4A200 body is published at 17.0 mm² effective area (Cv 1.0).
- Valve type5/2-way
- ActuationAir pilot
- Port sizePT1/8
- Effective area17.0 mm²
- Flow (Cv)1.0
- Series4A200
- 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 4A210-06 Pneumatic Valve, 4A200 Series (4A21006)
The AirTAC 4A21006 is a 5/2-way air pilot valve that directs compressed air to double-acting cylinders and actuators around Dia 32-50 mm. It has no coil inside: a 3/2 or 5/2 signal valve, hand lever or limit valve applies pilot air to throw the spool, and a return spring snaps it back the instant the signal is released. That makes the valve safe to mount wherever electrics are awkward - paint booths, dusty woodworking cells, wash-down lines or vibrating quarry plant.
This 06 version carries 1/8in PT (Rc tapered) ports on all three paths, so it seals on the flanks with PTFE tape rather than a face washer - the right pick if your existing pipework is already tapered. The published body figures are 17.0 mm2 effective area (Cv 1.0) and a no-load cycling rate of up to 5 cycles per second, with the whole aluminium-alloy valve weighing just 185 g. Air must be filtered by a 40 um element, and although lubrication is not required, a valve once run on lubricated air must stay lubricated.
AirTAC 4A210-06 Pneumatic Valve, 4A200 Series (4A21006) Technical Specifications
| Model | AirTAC 4A210-06 Pneumatic Valve, 4A200 Series (4A21006) |
|---|---|
| Series | 4A200 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 | PT1/8 |
| Exhaust port | PT1/8 |
| Thread standard | PT (Rc tapered) |
| Effective area (Cv) | 17.0 mm² (Cv 1.0) |
| 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 | 5 cycle/sec (no load) |
| Temperature | -20 to +70 °C |
| Body material | Aluminum alloy |
| Lubrication | Not required |
| Weight | 185 g |
Specifications follow the official AirTAC 4A series datasheet. AirTAC publishes the effective area / Cv published for the 1/4" port; other port and centre options of this body share the same casting but are not separately rated. Max frequency is the no-load figure. Confirm the thread standard (PT / G / NPT) against the product label before piping.
Flow & Piloting
| Effective area | 17.0 mm² |
|---|---|
| Flow coefficient | Cv 1.0 |
| 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 | 200M (up to 16 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 4A210-06 Pneumatic Valve, 4A200 Series (4A21006)
| 4A | Air pilot valve, sliding-spool, 4-series. |
|---|---|
| 2 | Body size (4A200) — sets port & flow. |
| 10 | Function: 10 = single pilot 5/2, 20 = double pilot 5/2, 30C/E/P = 5/3 closed / exhaust / pressure centre. |
| 06 | 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: 4A210 (single pilot), 4A220 (double pilot, memory), 4A230C/E/P (5/3 centre).
Where the AirTAC 4A210-06 Pneumatic Valve, 4A200 Series (4A21006) Is Used
Paint booth clamp cylinders
In a spray booth, every spark source is a hazard. The 4A21006 runs its Dia 32-50 mm clamp cylinder on pilot air alone, driven by a foot pedal signal valve, so there is no coil or wiring inside the booth. The Cv 1.0 flow class keeps clamp strokes brisk at booth air pressures.
Woodworking dust-enclosed actuators
Saw and sander enclosures collect conductive dust that kills electrical parts. Mounted inside the guard, this valve switches a hold-down cylinder from a limit valve on the guard itself; with 17.0 mm2 effective area and 5 cycles per second no-load capability it keeps up with repeat clamping, and the 185 g body bolts on with two screws.
Remote trailer and field equipment
Tipper latches and tailgate locks on farm trailers sit metres from any control box. A single air line from a hand lever valve on the tractor drives this 5/2 valve, and the spring return closes the latch automatically whenever the lever is released - no battery, no solenoid, no harness to damage.
Is the AirTAC 4A210-06 Pneumatic Valve, 4A200 Series (4A21006) the Right Valve?
The 4A21006 sits mid-range in the 4A family. If your cylinder is small and speed is not critical, step down to the 4A100 body (Cv 0.6); if you need more flow for faster cycles or larger bores, step up to the 4A300 body (Cv 1.65). Choose this single-pilot 10 function when the cylinder must return automatically whenever the pilot signal stops - a two-hand control or a trip valve is a natural driver. Prefer the 20 function if you want a pulsed signal to hold position without a held signal. An air pilot beats a solenoid when there is no safe or cheap way to get power to the valve: one plastic signal line from a manual valve does the job, with no coil to burn out and no electrical certification in explosive or wet zones. For several valves on one machine, mount them on a 200M manifold base (up to 16 stations, 1/4in common inlet) instead of plumbing each one. When replacing an existing unit, match all four points: 4A200 body, function 10, 1/8in port, PT thread.
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 200M 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 4A210-06 Pneumatic Valve, 4A200 Series (4A21006) FAQ
It is a 5/2-way valve for double-acting cylinders and actuators, best matched to Dia 32-50 mm bores. Published figures for the 4A200 body: 17.0 mm2 effective area (Cv 1.0), a no-load maximum of 5 cycles per second, operating pressure 0.15-0.8 MPa (21-114 psi), proof pressure 1.2 MPa (175 psi) and 1/8in PT ports on supply, outlet and exhaust.
On this single-pilot (function 10) valve the signal must be HELD, not pulsed. While pilot air is applied the spool stays shifted and the cylinder is fed on one side; the moment the signal is vented, the built-in spring pushes the spool back and the cylinder reverses. The pilot signal comes from the same filtered (40 um) compressed-air supply - there is no separate electrical feed anywhere in the valve.
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