Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S
SUS304 stainless variant (-S)The AirTAC Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S is a genuine push-lock speed controller, threaded elbow with push-lock adjusting cap (pom) and fixed tube direction, used to set the speed of a pneumatic cylinder by throttling its air.
- TypePush-lock speed controller, threaded elbow
- SeriesPTL
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- AdjustmentPush-lock adjusting cap (POM)
- 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 PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S
The PTL1002AD-S is a push-lock speed controller that throttles air in one direction and lets it run free in the other, so you set an actuator speed by turning a cap instead of touching a wrench. The A suffix marks meter-out: flow from the 1/4in PT thread port to the Dia 10 tube is controlled, and the return path is unrestricted. Meter-out is AirTAC's stated first priority because throttling a double-acting cylinder's exhaust builds a back-pressure cushion that keeps the stroke smooth under varying load.
The SUS304 stainless build replaces the brass throttling column with stainless, and the spring gasket is stainless too, which is what earns this part its place on wash-down machines and in corrosive atmospheres. The push-lock cap is POM, pressed down to release the tube and pulled up to lock the setting - it resists being knocked out of adjustment far better than a plain knob. This D-suffix version carries the black cap. There is no A/B choice to think about on the cap itself: it is the meter-out A version of the PTL ladder at Dia 10 x 1/4in.
Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S Technical Specifications
| Model | Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S |
|---|---|
| Type | Push-lock speed controller, threaded elbow |
| Series | PTL |
| Adjustment | Push-lock adjusting cap (POM) |
| Orientation | Fixed tube direction |
| Body material | Stainless steel 304 (-S variant) |
| 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. Stainless (-S): SUS304 throttling column and body parts in place of brass, for copper-free environments. Ratings are unchanged from the standard version. 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 PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S
| PTL | Push-lock 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. |
| -S | Stainless-steel body. |
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 PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S Is Used
Wash-down tray indexer
A food-line tray indexer gets its Dia 10 pusher cylinder throttled at the port so trays index onto the belt smoothly; the SUS304 column and stainless gasket survive daily hose-down where a brass column would dull and pit.
Plating line lift
A chemical plating line's lift cylinder runs on this meter-out A controller so the rack descends on a controlled exhaust cushion; stainless construction avoids copper corrosion products near the process baths.
Trailer tail-lift damping
A vehicle tail-lift platform uses the push-lock cap setting so road vibration and passing hands cannot drift the descent speed; the 1/4in PT port matches the valve block, the Dia 10 hose matches the cylinder.
Is the Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S the Right Part?
Step down to PTL802AD-S (Dia 8, same 1/4in thread) when the line is carrying lighter cylinders or shorter runs; the smaller bore restricts harder at the same cap setting. This is the last stop upward on the 1/4in rung - the PTL ladder at 1/4in tops out at Dia 10 - so if your tubing is Dia 12 you move to the 3/8in thread and the PTL1203A-S instead. Push-lock suits plant where a knob can be nudged by passing personnel or vibration; choose the PSS universal shape instead if you need the tube to swivel 360 degrees on a swinging actuator.
Fit the controller directly in the cylinder port, not back at the valve manifold. Throttling near the actuator keeps the small compressed volume between the restriction and the cylinder, which is what gives predictable speed control; the same valve at the far end of a long hose behaves differently.
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 PTL Exhaust Throttle Type Speed Control Valve PTL1002AD-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, usable vacuum down to -750 mmHg (10 Torr), operating temperature -20 to +70 C. This SKU is the push-lock speed controller in meter-out A flow, Dia 10 tube x 1/4in PT thread, black D-suffix cap, with the SUS304 stainless throttling column and stainless spring gasket. Soft nylon or polyurethane tubing only.
AirTAC publishes a cap torque for the PTL push-lock series only, and for the 1/4in size it is 0.16 N.m. That applies to the cap that locks the fitting, not to any adjustment action. Also note that a speed controller is not a shut-off: fully closed it still passes a trace of air by design, so isolate the circuit elsewhere.
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