Airtac PV Series L-Type Elbow Fitting PV4
The AirTAC Airtac PV Series L-Type Elbow Fitting PV4 is a genuine union elbow for push-in tube connection, rated 0 - 1.0 MPa (0 - 10 kgf/cm2) with a 1.5 MPa proof pressure.
- TypeUnion elbow
- SeriesPV
- 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 PV Series L-Type Elbow Fitting PV4
The PV4 is an AirTAC PV series one-touch union elbow, a tube-to-tube fitting that turns a pair of Dia 4 mm soft nylon or polyurethane lines through 90 degrees with no threaded port in between. Each leg is an independent push-in socket: slide the cut tube in until it bottoms, the stainless spring gasket and chuck jaws clamp the OD, and the joint is sealed. Press the POM release ring toward the body and the tube slides straight back out.
This is the resin/brass spec profile, not the metal BP line: working pressure 0-1.0 MPa (0-10 kgf/cm2), vacuum down to -750 mmHg (10 Torr), proof pressure 1.5 MPa, and a service temperature of -20 to +70 C. The grey body is PBT with a POM chuck and release button, an aluminium-alloy guide, a stainless spring gasket and an NBR O-ring. Dia 4 is the smallest bore in the PV ladder, so this SKU sits at the bottom of the size range.
Airtac PV Series L-Type Elbow Fitting PV4 Technical Specifications
| Model | Airtac PV Series L-Type Elbow Fitting PV4 |
|---|---|
| Type | Union elbow |
| Series | PV |
| Connection | Push-in one-touch |
| 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. AirTAC publishes flow as a characteristic curve rather than a single figure, so no L/min value is listed.
Model Code: Airtac PV Series L-Type Elbow Fitting PV4
| PV | Union 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. |
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 PV Series L-Type Elbow Fitting PV4 Is Used
Miniature gripper on a pick-and-place head
Small parallel grippers and 8 mm bore cylinders on a benchtop pick-and-place unit are usually plumbed in 4 mm PU tubing; the PV4 turns the drop 90 degrees at the wrist so the tube exits sideways instead of fouling the tool changer.
Analytical sampler air lines
Lab automation and sampling stations run short 4 mm nylon legs between a diaphragm pump and the sampling head. A union elbow lets the line turn a corner inside a tight instrument chassis without the kink risk of a hand-bent tube.
Pneumatic fixture and jig repairs
Workshop clamping fixtures and jigs often use 4 mm air lines to pilot cylinders. When a cracked tube or a repositioned clamp calls for a right-angle joint, the PV4 re-terminates both legs in seconds with no threading or adhesive.
Is the Airtac PV Series L-Type Elbow Fitting PV4 the Right Part?
PV4 is the smallest union elbow AirTAC makes in this series - there is no Dia 3.2 or smaller option below it. The next step up is PV6, which doubles the flow area for lines feeding small cylinders or pilot circuits; from there the ladder continues through PV8, PV10 and PV12. If your run needs to change diameter as well as direction, PV offers no reducer elbow, so put a PG different-diameter straight union adjacent to the elbow instead.
Match the tube OD exactly: a Dia 4 socket grips only 4 mm OD tubing and will not hold 1/4 inch (6.35 mm) or 6 mm tube, even though the sizes look close. Keep the elbow within reach of the release ring - buried in a bundle, you cannot free the tube without pulling the fitting apart.
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 PV Series L-Type Elbow Fitting PV4 FAQ
The PV4 is a one-touch union elbow joining two Dia 4 mm tubes with no threaded port. Working pressure is 0-1.0 MPa (0-10 kgf/cm2), negative pressure goes to -750 mmHg (10 Torr), proof pressure is 1.5 MPa, and the temperature range is -20 to +70 C. It takes soft nylon or polyurethane tubing only, in the standard grey finish.
No. Both legs of the PV4 accept Dia 4 mm OD tubing only - the chuck and gasket cannot seal on a larger tube, and 1/4 inch (6.35 mm) tube is not close enough to interchange. For a size change, move up to a PV6 union elbow and use a PG different-diameter straight union to make the transition, or run the 4 mm line back to a manifold port sized for it.
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