Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1003AD
The AirTAC Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1003AD 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 PTL1003AD
The PTL1003AD is a push-lock speed controller that throttles air in one direction and lets it run free in the other, so you can set how fast a cylinder or actuator travels. This is the A version, which means meter-out: flow from the 3/8in thread port into the Dia 10 tube is controlled, and the return path passes unrestricted. Meter-out is AirTAC's first-priority choice because throttling the exhaust of a double-acting cylinder builds a back-pressure cushion that keeps the stroke smooth instead of lurching under a changing load.
Adjustment is by push-lock cap, not a knob: press the cap to unlock, set the flow, release and the cap locks the setting in place. The published tightening torque for the 3/8in push-lock cap is 0.24 N.m. Internally the throttling column and body are brass. The D suffix on this code is the black finish rather than the standard grey. Screw the thread port into the actuator port or valve port and push 10mm soft nylon or polyurethane tubing into the free end.
Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1003AD Technical Specifications
| Model | Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1003AD |
|---|---|
| Type | Push-lock speed controller, threaded elbow |
| Series | PTL |
| Adjustment | Push-lock adjusting cap (POM) |
| 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 PTL Exhaust Throttle Type Speed Control Valve PTL1003AD
| 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. |
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 PTL1003AD Is Used
SMT pick-and-place descent
A pick-and-place head lowering onto a populated PCB tray uses the meter-out A control to bleed the exhaust slowly, so the head settles on components instead of dropping hard and cracking solder joints.
Weld-cell clamp fixture
In a robotic weld cell, a clamp cylinder closing onto sheet steel is slowed by the PTL1003AD so the jaws grip without a hammer blow that shifts the part out of the fixture.
Bottling line indexing pusher
A pusher that nudges bottles onto an indexing conveyor is timed by the throttled direction, letting one operator tune stroke time from a locked push-lock cap that line vibration cannot drift.
Is the Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1003AD the Right Part?
Choose meter-out (this A code) when a solenoid valve drives a double-acting cylinder and you want a cushioned, non-stick stroke. Meter-in (the B version of the same size) is the better match for single-acting cylinders. Push-lock suits machines where vibration or operators would knock a plain knob off its setting; if you retune speeds hourly at a test bench, the knob type PSL is faster to turn.
On size: one step down is the PTL0803AD, Dia 8 tube on the same 3/8in thread, which trims the bore and slows the controlled volume further; one step up is the PTL1203AD, Dia 12 tube, which carries more air for larger actuators. If your valve port is smaller, the 1/4in ladder tops out at Dia 10 with the PTL1002AD. Mount the controller directly at the cylinder port so only the short cylinder-to-valve volume sits downstream of the throttle - that keeps response crisp.
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 PTL1003AD FAQ
This SKU is a push-lock speed controller, meter-out (A), black (D) finish, for Dia 10mm soft nylon or polyurethane tubing with a 3/8in PT thread. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), vacuum capability is -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C. The published tightening torque for its 3/8in push-lock cap is 0.24 N.m.
Wrap the 3/8in PT thread with sealant tape and screw it into the cylinder or valve port hand-tight plus a fraction of a turn - PT is a tapered thread and relies on the tape, not an O-ring, at this face. When tubing is already inserted, do not overtighten the push-lock cap beyond the published 0.24 N.m. Note the controller is not a shut-off valve; even fully closed it is not designed to isolate a circuit, so depressurise before disconnecting tubing.
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