Airtac PH-1 Hex Head Toggle Joint PH4M5-S
SUS304 stainless variant (-S)The AirTAC Airtac PH-1 Hex Head Toggle Joint PH4M5-S is a genuine universal male elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeUniversal male elbow
- SeriesPH
- Working pressure0 - 1.0 MPa (0 - 10 kgf/cm2)
- Proof pressure1.5 MPa
- 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 PH-1 Hex Head Toggle Joint PH4M5-S
The PH4M5-S is the stainless-stud version of AirTAC's PH universal male elbow, a swivelling one-touch fitting that joins Dia 4 mm soft nylon or polyurethane tube to an M5x0.8 male port. Because the head pivots on the thread, the elbow reaches its final angle after the thread is tightened, so the tube can leave the port in whatever direction the machine layout demands instead of being forced round a fixed bend.
This is a resin-profile part: working pressure 0-1.0 MPa, vacuum down to -750 mmHg, proof pressure 1.5 MPa, and a temperature range of -20 to +70 C. On the -S variant the body remains PBT while the male stud is SUS304, giving copper-free wetted metal at the port; the release button and chuck stay POM, backed by an aluminium-alloy guide, a stainless spring gasket and an NBR O-ring. Unlike the larger threaded sizes, the M5 stud is sealed with a sealing gasket rather than pre-applied thread sealant, so it screws straight into a tapped M5 port.
Airtac PH-1 Hex Head Toggle Joint PH4M5-S Technical Specifications
| Model | Airtac PH-1 Hex Head Toggle Joint PH4M5-S |
|---|---|
| Type | Universal male elbow |
| Series | PH |
| Connection | Push-in one-touch |
| 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 in place of brass - a solid SUS304 body on the PC and POC straight connectors, and a PBT body with a SUS304 stud on the elbow, tee and branch shapes. Working pressure, proof pressure and temperature are unchanged from the standard version. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PH-1 Hex Head Toggle Joint PH4M5-S
| PH | Universal male 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). |
| D | Black. Blank = grey. |
| -S | Stainless-steel body. |
Fitting & Sealing Notes
- check Cut the tube square and clean before pushing it home, or the seal will leak.
- check Push until it stops, then pull back to check the chuck has gripped.
- check To release, press the collet ring fully in and pull the tube out.
- check Threaded parts arrive with sealant on the thread; M5 sizes use a sealing gasket.
- check Match the tube OD exactly - a 6 mm fitting will not hold 1/4" tube.
Where the Airtac PH-1 Hex Head Toggle Joint PH4M5-S Is Used
Lab analyser reagent lines
Inside benchtop analysers and sample-handling modules, solenoid valves are usually tapped M5 and space is scarce. The swivelling head lets a Dia 4 line leave the valve at the angle the manifold layout allows, and the SUS304 stud keeps the port side copper-free.
Pilot signal take-off on M5 valve manifolds
Where a Dia 4 pilot or pressure-signal line branches off an M5 gauge or valve port inside a compact control cabinet, the angled body clears neighbouring fittings that a straight connector would crowd.
Small pick-and-place end effector plumbing
On compact gripper assemblies fed by Dia 4 polyurethane tube, a fixed-angle elbow often forces a tight bend at the wrist. The PH4M5-S threads onto the M5 port and then rotates to point the tube along the natural tube route.
Is the Airtac PH-1 Hex Head Toggle Joint PH4M5-S the Right Part?
Dia 4 is the smallest tube the PH series offers on an M5 thread, so there is no step down. The only step up at M5 is PH6M5-S; beyond that, moving to the 1/8in thread (PH401-S) opens Dia 6 and Dia 8 options. Stepping from Dia 4 to Dia 6 roughly increases the flow area available through the bore, worth doing if the same line also feeds a cylinder or ejector with a noticeable appetite; at Dia 4 the fitting is best matched to pilot signals, sensors and small actuators. The mating port must be a true M5x0.8 tapping; do not force the stud into an M6 hole. Tube OD must match exactly - a Dia 4 chuck will not grip 3 mm or 5/32in tube.
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
Airtac PH-1 Hex Head Toggle Joint PH4M5-S FAQ
It is a PH universal male elbow taking Dia 4 mm soft nylon or polyurethane tube on one side and an M5x0.8 male thread with sealing gasket on the other. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), it handles vacuum to -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the working temperature range is -20 to +70 C. The stud is SUS304 and the body is PBT; the thread standard in this catalogue is PT throughout.
No, and this matters when specifying. On the PH series the -S suffix means the male stud is SUS304 while the body stays PBT; only the PC and POC straight connectors get a solid SUS304 body in the stainless range. The pressure, vacuum and temperature ratings are identical to the standard grey version - stainless here buys corrosion resistance and copper-free construction at the port, not a higher rating.
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