Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002A-S
SUS304 stainless variant (-S)The AirTAC Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002A-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 PTL1002A-S
The AirTAC PTL1002A-S is a push-lock speed controller that throttles air in one direction and passes it freely in the other, letting you set actuator speed from the cylinder port. The A suffix marks meter-out control: flow leaving the 1/4in PT thread port and entering the Dia 10 tube is throttled, while the return path runs free. AirTAC ranks meter-out as the first-priority setting because throttling the exhaust of a double-acting cylinder traps a back-pressure cushion in the cylinder, and the stroke stays smooth under load instead of stick-slipping.
The -S variant replaces the brass throttling column of the standard PTL with SUS304 stainless steel, with the throttling body in aluminium alloy or SUS304, so the wetted control path stands up to wash-down, coastal salt air and copper-sensitive processes. No rating moves with the material change - pressure, vacuum and temperature figures are identical to the standard part, and so are the dimensions. Adjustment is by push-lock cap: pull it up, turn to set, press it down, and the captured cap resists being knocked off its setting on a vibrating machine. AirTAC publishes a cap torque of 0.16 N.m for the 1/4in size, so a firm hand-tightening is all the seal needs.
Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002A-S Technical Specifications
| Model | Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002A-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 PTL1002A-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 PTL1002A-S Is Used
Bottling line rinse gate
A rinse-gate cylinder on a bottled-water line takes its down-stroke from this meter-out throttle, and the SUS304 column shrugs off the daily caustic wash-down that pits brass speed controllers between shifts.
Electroplating transfer arm
On a plating-line lift, the stainless throttling column keeps copper out of the acid-mist zone where brass hardware corrodes and risks contaminating the bath chemistry.
Seafood grading conveyor pusher
An indexing pusher on a shrimp-grading conveyor is timed with this Dia 10 meter-out controller so cartons are nudged onto the next belt instead of slammed across the transfer plate.
Is the Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002A-S the Right Part?
Choose meter-out A for a solenoid valve driving a double-acting cylinder; the B meter-in version is the match for single-acting units. Push-lock beats the knobbed PSL wherever sleeves and tool trays brush past the settings; a knob is faster if you retune the stroke every shift. On the 1/4in thread this Dia 10 is the largest tube AirTAC offers - stepping up in bore means moving the thread to 3/8in on PTL1003A-S - while stepping down to PTL0802A-S gives Dia 8 and a smaller controlled volume for snappier fine adjustment. Screw the controller straight into the cylinder port so the throttled air volume stays small and response stays 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 PTL1002A-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, usable vacuum to -750 mmHg (10 Torr), operating temperature -20 to +70 C. This SKU is the push-lock speed controller for Dia 10 soft nylon or polyurethane tube with a 1/4in PT male thread, meter-out A flow direction, with SUS304 stainless in place of the standard brass throttling column.
AirTAC specifies 0.16 N.m of torque for the push-lock cap on the 1/4in size - beyond a firm hand-tighten you gain nothing and risk damaging the POM cap. Note also that a speed controller is not an isolating valve: like every PTL in this catalogue it passes a slight leak when fully closed. For positive shut-off use an AirTAC PHV finger valve.
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