AirTAC 4A220-06 Pneumatic Valve, 4A200 Series (4A22006)
The AirTAC AirTAC 4A220-06 Pneumatic Valve, 4A200 Series (4A22006) is a genuine 5/2-way double air pilot (memory) 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 4A220-06 Pneumatic Valve, 4A200 Series (4A22006)
The 4A22006 is a double air pilot 5/2 valve that directs compressed air to double-acting cylinders and air actuators. There is no coil anywhere in it: a short pulse of pilot air on one control port throws the sliding spool, and the spool simply stays there - held by land friction and balanced pressures, with no spring, detent or magnet involved. Drop the pilot signal or lose pilot air entirely and the valve remembers its last position, which is exactly what you want on an actuator that must not creep while a signal line is idle.
This 06 code is the 1/8in PT (Rc tapered) version, so all four ports - inlet, two work ports and exhaust - are 1/8in, and the tapered PT thread seals on its flanks with PTFE tape. Flow is at the 4A200 class ceiling: 17.0 mm2 effective area, Cv 1.0, up to 5 cycles per second no-load, in an aluminium body weighing 285 g. It suits cylinders of roughly Dia 32-50 mm, and the air feeding it must pass a 40 um filter element.
AirTAC 4A220-06 Pneumatic Valve, 4A200 Series (4A22006) Technical Specifications
| Model | AirTAC 4A220-06 Pneumatic Valve, 4A200 Series (4A22006) |
|---|---|
| Series | 4A200 air pilot valve (sliding-spool type) |
| Valve type | 5/2-way |
| Function | Double air pilot (memory) |
| Actuation | Double air pilot, detent-free memory (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 | 285 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 | Two pilot ports, one per side |
| 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 4A220-06 Pneumatic Valve, 4A200 Series (4A22006)
| 4A | Air pilot valve, sliding-spool, 4-series. |
|---|---|
| 2 | Body size (4A200) — sets port & flow. |
| 20 | 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 4A220-06 Pneumatic Valve, 4A200 Series (4A22006) Is Used
Sawmill log clamps and stops
Dust-heavy sawmill and woodworking lines kill coils, but the 4A22006 has none - limit or hand valves pulse the 1/8in pilot ports and Cv 1.0 flow cycles Dia 32-50 mm clamp cylinders up to 5 times a second no-load.
Quarry and mining conveyor diverters
On remote quarry conveyors a single signal tube reaches a pilot valve mounted right at the plough or diverter cylinder; the memory function holds the thrown position without a held signal, in an aluminium body that shrugs off vibration.
Wash-down food packaging actuators
Hosing down a packaging line means wet electrics - here the only thing at the valve is air. The 40 um filtered supply drives pusher and gate cylinders near the top of the 17.0 mm2 (Cv 1.0) flow class without a coil or connector in sight.
Is the AirTAC 4A220-06 Pneumatic Valve, 4A200 Series (4A22006) the Right Valve?
Size around the Cv 1.0 figure. If your cylinder runs slowly or the line is short, the smaller 4A100 body (Cv 0.6) will do the job cheaper; if you need more speed or you are moving a cylinder near the top of the Dia 32-50 mm range, step up to the 4A300 body (Cv 1.65). Within the 4A200 body, pick this 20 double-pilot code when a brief pulse is all your signal valve can give - a single-pilot 4A210 needs its signal held for the whole stroke. Choose an air pilot over a solenoid whenever a coil is the weak point: dusty sawmills and grain sheds, wash-down food lines, high-vibration presses, or an actuator mounted far from the control cabinet, fed by a single small-bore signal tube from a hand, foot or limit valve. For multi-valve machines, mount 4A22006 units on the 200M manifold base (up to 16 stations, 1/4in common inlet). Replacing an existing unit? Match all four code points: body size (4A200), function (20), port (06) and 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 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 A pulse is enough — the spool stays where it was last driven.
- check Fit silencers or fittings to the exhaust ports.
- check Once run on lubricated air, keep lubricating it.
AirTAC 4A220-06 Pneumatic Valve, 4A200 Series (4A22006) FAQ
This is the double-pilot 5/2 version of the 4A200 body: 17.0 mm2 effective area, Cv 1.0, and a no-load maximum frequency of 5 cycles per second. Operating pressure is 0.15-0.8 MPa (21-114 psi) with a proof pressure of 1.2 MPa (175 psi), working temperature -20 to +70 C, and the supply air must be filtered by a 40 um element. The unit weighs 285 g and suits double-acting cylinders of roughly Dia 32-50 mm. All ports, including the exhaust, are 1/8in on this 06 code.
A short pulse of pilot air on either control port shifts the spool, and the spool then stays put on its own - held by land friction and balanced air pressures, with no spring, magnet or detent. That means your signal valve (a 3/2 hand, foot or limit valve, or another 5/2) only needs to pulse, not hold, and the valve keeps its last position even if pilot air is lost. If the valve must arrest a suspended or falling load, do not rely on the memory alone - add a pilot-operated check valve at the cylinder ports or a mechanical brake for guaranteed holding.
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