Airtac PTL Exhaust Throttle Type Speed Control Valve PTL4M5AD-MS
SUS304 stainless variant (-S)The AirTAC Airtac PTL Exhaust Throttle Type Speed Control Valve PTL4M5AD-MS 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 PTL4M5AD-MS
This is the smallest member of the AirTAC push-lock family: a Dia 4 tube by M5 thread speed controller in the mini body, finished in black (the D colour suffix), with the flow path built in SUS304. It meters air in one direction and lets it run free in the other, so it sets the stroke speed of a small cylinder without adding a second fitting. This code is the A version, meter-out: flow from the M5 thread port into the tube is throttled, the return path is unrestricted, and the cap is marked A. Meter-out is the default choice because throttling the exhaust of a double-acting actuator leaves a back-pressure cushion that keeps the stroke smooth instead of letting it lurch.
The push-lock cap is the defining feature. Push it down to release the needle for adjustment, release it to lock the setting again - a vibration-tolerant arrangement that will not be knocked out of position the way a plain knob can. The adjustment mechanism stays POM; the SUS304 work is in the flow path, where the throttling column is stainless instead of the standard brass, making the wetted circuit copper-free for electronics and plating environments. One figure worth knowing before you pick up a spanner: the M5 push-lock cap is torqued to just 0.05 N.m, so hand-tight is the whole job.
Airtac PTL Exhaust Throttle Type Speed Control Valve PTL4M5AD-MS Technical Specifications
| Model | Airtac PTL Exhaust Throttle Type Speed Control Valve PTL4M5AD-MS |
|---|---|
| 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) |
| Size class | Mini series (-M) |
| 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 PTL4M5AD-MS
| 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. |
| -M | Mini series. |
| -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 PTL4M5AD-MS Is Used
SMD vacuum pick head
A surface-mount pick-and-place head lifting 0402 components from feeder tape needs its descend stroke damped, not slugged. The Dia 4 bore matches the miniature vacuum lines on an SMT head, the M5 thread screws straight into the ejector port, and the SUS304 flow path keeps copper particles away from the PCB.
Optical lens seating clamp
A small clamp closing a retaining ring onto a polished lens will chip the coating if it slams. Fitted meter-out at the cylinder port, this controller slows the closing stroke while the free return gives the operator a fast reopen. The push-lock cap holds the gentle setting through a full production shift.
Laboratory dosing head
A compact dispensing or pipetting module on an analytical instrument advances a Dia 4 cylinder to meter reagent volumes. Meter-out control gives a repeatable advance speed shot after shot, and the copper-free stainless flow path suits reagent environments where brass would contaminate or react.
Is the Airtac PTL Exhaust Throttle Type Speed Control Valve PTL4M5AD-MS the Right Part?
Dia 4 is the floor of the PTL mini ladder - there is no tube below it. Step up to Dia 6 on the same M5 thread when the actuator port takes 6 mm tubing and you want a larger bore for shorter fill times; step instead to the Dia 4 mini on 1/8 inch thread if the machine manifold is piped rather than tapped M5. Beyond the mini, the standard PTL body starts at 1/8 inch with Dia 6 and 8 tubes. Whichever you choose, mount the controller directly at the cylinder port: the throttled air volume is then only the stub between controller and piston, and speed response stays crisp.
Reserve meter-out for double-acting cylinders driven from a valve. If your actuator is single-acting - a spring-return clamp or an air bellows - meter-in is the correct method and you need the B version of this part. For parts that must never shift their setting, prefer this push-lock over the knob-type PSL; for frequent hand re-adjustment during changeover, a knob type is quicker.
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 PTL4M5AD-MS FAQ
Working pressure 0-1.0 MPa (0-10 kgf/cm2), proof pressure 1.5 MPa, usable vacuum -750 mmHg (10 Torr), operating temperature -20 to +70 C. This SKU takes Dia 4 soft nylon or polyurethane tubing on the tube side and has an M5 PT thread on the port side. It is the A (meter-out) type in the mini push-lock body, black colour suffix D, with a SUS304 throttling column in place of the standard brass.
No. A speed controller is not a shut-off valve - even fully closed, the needle is designed to leak slightly, so it cannot isolate a circuit for maintenance. Use a dedicated shut-off such as the AirTAC PHV finger valve where you need positive isolation. This part is also one of a family: if you want the same flow path with a swivelling tube or a screw-in port body, look at the PTS and PSL equivalents rather than adapting this one.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard parts are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Speed Controllers
Request a Quote for Airtac PTL Exhaust Throttle Type Speed Control Valve PTL4M5AD-MS
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.