AirTAC 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08)
The AirTAC AirTAC 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08) is a genuine 5/3-way 5/3 double air pilot — exhaust centre air pilot valve with PT1/4 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 13.6 mm² effective area (Cv 0.8).
- Valve type5/3-way
- ActuationAir pilot
- Port sizePT1/4
- Effective area13.6 mm²
- Flow (Cv)0.8
- 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 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08)
The AirTAC 4A230E08 is a double air pilot 5/3-way directional valve that directs compressed air to a double-acting cylinder or actuator. Both spool positions are set by an air signal, so there is no coil to burn out and no electrical certification to worry about in dust or wash-down areas. In the centre position both work ports A and B vent to exhaust, which lets the cylinder float free - the rod can be nudged by hand or by the load, a behaviour clamp and gripper builders use to relax a fixture between cycles. A pulse at one pilot port shifts the spool; a pulse at the other returns it.
The 4A200 body publishes an effective area of 13.6 mm2 (Cv 0.8) for the 5/3 pattern and a no-load maximum of 3 cycles per second. Ports are 1/4in PT (Rc tapered) on inlet and outlet with a 1/8in exhaust, so seal the thread flanks with PTFE tape rather than expecting a face washer to do the job. It runs on 0.15-0.8 MPa (21-114 psi) of air filtered through a 40 um element, weighs 365 g, suits ~ Dia 32-50 mm double-acting cylinders, and can be banked with its neighbours on a 200M manifold base.
AirTAC 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08) Technical Specifications
| Model | AirTAC 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08) |
|---|---|
| Series | 4A200 air pilot valve (sliding-spool type) |
| Valve type | 5/3-way |
| Function | 5/3 double air pilot — Exhaust centre |
| Actuation | Double air pilot, spring-centred (exterior air control) |
| Port size | PT1/4 |
| Exhaust port | PT1/8 |
| Thread standard | PT (Rc tapered) |
| Effective area (Cv) | 13.6 mm² (Cv 0.8) |
| 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 | 365 g |
Specifications follow the official AirTAC 4A series datasheet. AirTAC publishes the effective area / Cv published for 4A230C-08; 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 | 13.6 mm² |
|---|---|
| Flow coefficient | Cv 0.8 |
| 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 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08)
| 4A | Air pilot valve, sliding-spool, 4-series. |
|---|---|
| 2 | Body size (4A200) — sets port & flow. |
| 30E | Function: 10 = single pilot 5/2, 20 = double pilot 5/2, 30C/E/P = 5/3 closed / exhaust / pressure centre. |
| 08 | 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 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08) Is Used
Quarry screen slide gates
On vibrating aggregate screens, dust and shock kill electrical coils, so crews throw these gates with air signals instead. At Cv 0.8 it cycles Dia 32-50 mm gate cylinders, and the exhaust centre lets operators float the gate and free a jam by hand.
Bottle and can packing grippers
End-of-line packing machines wash down daily, so a coil-free valve earns its keep here. At centre both ports exhaust, letting gripper cylinders go slack so an out-of-place bottle can be re-seated without dropping the whole station off power.
Paint booth clamp fixtures
Fixture clamps around spray areas benefit from a valve with no ignition-source components and no coil to bake out in oven zones. With A and B vented at centre, clamps relax between coats and parts can be re-touched or turned by hand.
Is the AirTAC 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08) the Right Valve?
Match a replacement on four points: body size (4A200), function (30E, exhaust centre), port (08 = 1/4in) and thread (PT tapered). If your old valve blocks all five ports at centre you need the 30C code; if it pressurises both cylinder ports at centre, that is the 30P. For flow, the 4A200 sits mid-range: step down to the 4A100 at Cv 0.6 for compact actuators, or step up to the 4A300 at Cv 1.65 when larger-bore cylinders are in the circuit.
Because this valve carries no electrical parts at all, it can sit out on the machine driven by a single air signal line from a hand valve, foot valve, roller lever or limit valve, far from any control cabinet. Choose the 30E exhaust centre over the 30C whenever you want the actuator to relax and be movable at centre instead of holding. For multi-valve circuits, mount up to 16 stations on one 200M base with a 1/4in common inlet.
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 4A230E-08 Pneumatic Valve, 4A200 Series (4A230E08) FAQ
It switches double-acting cylinders and actuators of roughly Dia 32-50 mm bore. Published figures: effective area 13.6 mm2 (Cv 0.8) for the 5/3 pattern, no-load maximum frequency 3 cycles per second, operating pressure 0.15-0.8 MPa (21-114 psi), proof pressure 1.2 MPa (175 psi), air filtered by a 40 um element. Ports are 1/4in PT with a 1/8in exhaust - do not choke that exhaust with an oversized fitting or a tight silencer, because a restricted exhaust shows up as a slow return stroke on this body.
At centre both work ports vent to exhaust, so the cylinder floats free rather than holding - if the load must stay put, add pilot-operated check valves at the cylinder ports or order the 30C closed-centre code instead. The spool is thrown by an air pulse from a 3/2 or 5/2 signal valve (manual, mechanical or another valve in the circuit) and it remains in that position until the opposite pilot port is pulsed; unlike the single-pilot 4A210, no signal line needs to be held on.
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