Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002BD-S
SUS304 stainless variant (-S)The AirTAC Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002BD-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 PTL1002BD-S
The PTL1002BD-S is a push-lock speed controller that sets actuator speed by throttling air in one direction while letting it pass freely the other way. The B suffix marks this as a meter-in unit: air flowing from the 1/4in PT thread port to the Dia 10 tube runs unrestricted, and the controlled flow is the return path. AirTAC positions meter-out as the first choice for double-acting cylinders, but meter-in is the correct call for a single-acting spring-return cylinder, where there is no exhaust side to cushion and the supply side is the only one worth throttling.
Instead of a rotating knob, this version uses a push-lock cap: press to release, set the orifice, press again to lock. The cap resists vibration and accidental knocks far better than a plain knob, and AirTAC publishes a seating torque for it - 0.16 N.m at the 1/4in size - so the seal can be verified on assembly. The D suffix orders it in black. In this -S variant the throttling column is SUS304 stainless in place of the standard brass, the body is aluminium alloy or SUS304, and the spring gasket is stainless, while every pressure and temperature rating stays identical to the standard part.
Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002BD-S Technical Specifications
| Model | Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002BD-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 PTL1002BD-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 PTL1002BD-S Is Used
Spring-return stamping mark head
A single-acting spring-return cylinder on a small marking press needs its extend stroke slowed from the supply side only - exactly what B meter-in control provides at the 1/4in thread port.
Bottling line reject pusher
A Dia 10 bore feeds the larger cylinder volume of a conveyor reject pusher, and the SUS304 throttling column survives frequent caustic wash-down where a brass column would corrode.
Lab fixture lift assist
A bench-top lifting fixture on a plating or electronics line uses the copper-reduced stainless construction near chemically active baths, with the push-lock cap holding the set speed against daily handling.
Is the Airtac PTL Exhaust Throttle Type Speed Control Valve PTL1002BD-S the Right Part?
Sizing within the PTL ladder at a 1/4in thread: one step down is Dia 8 (PTL802BD-S), which suits lighter loads and shorter strokes; Dia 10 is already the top of the 1/4in ladder, so the next tube size up, Dia 12, means moving to a 3/8in thread (PTL1003B range). Stepping the bore up smooths flow for heavier cylinder volumes; stepping down gives finer adjustment resolution on small strokes. Confirm the control letter against your actuator: B meter-in for single-acting cylinders, A meter-out if you later switch to double-acting.
Mount the controller directly at the cylinder port so the throttled air volume stays small and the response to each adjustment is immediate. Do not use it as a shut-off - a speed controller is designed to weep slightly when fully closed, so isolating a circuit needs a proper valve.
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 PTL1002BD-S FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), negative pressure down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, operating temperature -20 to +70 C. This SKU is Dia 10 tube with a 1/4in PT thread, meter-in (B) control, black body, and a SUS304 stainless throttling column in the -S stainless variant.
After inserting the Dia 10 tube and setting the flow, press the cap home. AirTAC publishes a seating torque of 0.16 N.m for push-lock caps at the 1/4in size - the only torque figure in this catalogue - so a torque driver set to that value confirms the seal without overtightening the POM cap.
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