Airtac PSL Throttle Speed Control Fitting PSL10-02B
The AirTAC Airtac PSL Throttle Speed Control Fitting PSL10-02B is a genuine speed controller, threaded elbow with knob with aluminium-alloy locking cap and fixed tube direction, used to set the speed of a pneumatic cylinder by throttling its air.
- TypeSpeed controller, threaded elbow
- SeriesPSL
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- AdjustmentKnob with aluminium-alloy locking cap
- Temperature-20 to +70 °C
- 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 PSL Throttle Speed Control Fitting PSL10-02B
The PSL10-02B is a thread-in speed controller sized for Dia 10 soft nylon or polyurethane tubing with a 1/4in PT male port. It sets actuator speed by throttling air in one direction while letting it pass freely in the other. The B suffix makes this the meter-in version: air flowing from the 1/4in thread port into the tube runs free, while flow returning from the tube out through the thread port is throttled. AirTAC marks the handle with a B so the setting direction is obvious on the machine.
Meter-in control is the natural match for a single-acting cylinder, where throttling the supply side gives a smooth, repeatable stroke and the spring or load handles the return. Adjustment is by a knurled knob with an aluminium locking cap: set the speed, then screw the cap down and the setting stays put through vibration. Inside, a brass throttling column meters the flow against brass body parts, with a PBT holder and NBR O-ring sealing the interface. One caution from the catalogue: meter-in on a double-acting cylinder tends to stick-slip under changing load, so reserve it for single-acting duties.
Airtac PSL Throttle Speed Control Fitting PSL10-02B Technical Specifications
| Model | Airtac PSL Throttle Speed Control Fitting PSL10-02B |
|---|---|
| Type | Speed controller, threaded elbow |
| Series | PSL |
| Adjustment | Knob with aluminium-alloy locking cap |
| Orientation | Fixed tube direction |
| Working pressure | 0 - 1.0 MPa (0 - 10 kgf/cm2) |
|---|---|
| Negative pressure | -750 mmHg (10 Torr) |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Applicable tubing | Soft nylon or polyurethane tube |
| Thread standard | PT (Rc tapered) unless the code says otherwise |
POM release button and chuck, aluminium-alloy guide, stainless spring gasket, NBR O-ring; body brass or PBT depending on the part. A speed controller is not a shut-off valve - a small leak past a fully closed needle is normal. Close it before applying air, and turn it open slowly. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PSL Throttle Speed Control Fitting PSL10-02B
| PSL | Speed controller, threaded elbow. |
|---|---|
| 4 / 6 / 8 / 10 / 12 | Tube outside diameter in mm (3.2 mm exists on the mini series). |
| M5 / 01 / 02 / 03 / 04 | Thread: M5x0.8, 1/8", 1/4", 3/8", 1/2" (M3 on the mini series). |
| A / B | A = meter-out (controls flow from the thread port to the tube). B = meter-in. |
| D | Black. Blank = grey. |
Meter-Out or Meter-In?
- check Meter-out (A) is the default. It throttles the air LEAVING the cylinder, so the piston runs against a back-pressure cushion and moves smoothly.
- check Use meter-out on double-acting cylinders - it is the one AirTAC lists as first priority.
- check Meter-in (B) throttles air ENTERING the cylinder. It suits single-acting cylinders and air motors.
- check Meter-in on a double-acting cylinder tends to give a jerky, stick-slip stroke under varying load.
- check Fit the controller at the cylinder port, not at the valve, so the throttled volume is as small as possible.
Where the Airtac PSL Throttle Speed Control Fitting PSL10-02B Is Used
Spring-return clamp on a woodworking fixture
A single-acting clamp cylinder closing a pressure foot onto a finished timber panel needs a metered power stroke. The PSL10-02B meters the supply air into the Dia 10 line, so the clamp lands gently instead of denting the surface.
Single-acting ejector on a packaging machine
On a carton packing head, a spring-return ejector pushes finished packs off the forming station. Meter-in control via the 1/4in port sets a consistent push speed stroke after stroke, while the spring return handles the reset free-flow.
Sample probe lowering into a test station
A laboratory sampling probe driven by a single-acting cylinder must descend at a controlled rate into the sample vessel. The locking cap on the PSL10-02B keeps the descent speed fixed once dialled in, even with plant-floor vibration nearby.
Is the Airtac PSL Throttle Speed Control Fitting PSL10-02B the Right Part?
Match the control method to the actuator first. AirTAC rates meter-out as the first priority for solenoid valves driving double-acting cylinders, because throttling the exhaust builds a back-pressure cushion and the stroke stays smooth. The PSL10-02B is meter-in, so pick it when your actuator is single-acting - a spring-return clamp, ram or ejector - and you want to meter the power stroke. If your circuit is double-acting, choose the A version of the same size instead. This PSL body screws into the port with a fixed tube outlet; if the tubing has to swivel to line up, the PSS universal version is the alternative.
Size-wise, this SKU sits mid-ladder on the 1/4in thread: the step down is the PSL802B with Dia 8 tube on the same port, and the step up is the PSL1003B, which keeps the Dia 10 tube but moves to a 3/8in thread. Stepping down narrows the bore and suits lighter-actuator circuits; stepping up gives you a larger port for higher-flow valves without changing your tubing. Whichever you pick, fit the controller directly at the cylinder port so the throttled air volume stays small and response stays crisp. Note that no PSL has a built-in silencer - exhaust noise needs a separate silencer part.
Quick checklist
- ✓ Tube outside diameter matches exactly
- ✓ Thread size and standard match the port
- ✓ Working pressure within 0 - 1.0 MPa (0 - 10 kgf/cm2)
- ✓ Temperature within -20 to +70 °C
- ✓ Meter-out (A) unless you know you need meter-in
Airtac PSL Throttle Speed Control Fitting PSL10-02B FAQ
This is a meter-in (B) speed controller for Dia 10 tube with a 1/4in PT thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, and it tolerates negative pressure down to -750 mmHg (10 Torr). Ambient and media temperature range is -20 to +70 C. Use soft nylon or polyurethane tubing. The standard finish is grey.
No. A speed controller is not a shut-off valve - even fully closed it is designed to leak slightly, so it must not be relied on to isolate a circuit. If you need a manual shut-off with positive closure, AirTAC's PHV finger valve is the correct part; the PHV10 variant shares the Dia 10 tube size. For metering double-acting cylinders, switch to the meter-out PSL10-02A instead of forcing a meter-in part into that duty.
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