Thread-free, tool-free connections for nylon flexible tube and PU tube: push the tube into the port until it stops, and the fitting holds it. For compressed air, pneumatic circuits, machine service lines and instrument lines — anywhere there is a lot of small-bore tube and the layout keeps changing.
Tell us the shape, tube OD, tube type (nylon/PU) and quantity — quotes within 2 working hours.
| Brand | AF Hydro — official catalogue downloadable below |
|---|---|
| Tube | Nylon flexible or PU — 4, 6, 8, 10, 12 mm OD |
| Working pressure | 0–10 kgf/cm² — 0–1.0 MPa |
| Negative pressure | 750 mmHg — 10 Torr, for vacuum lines |
| Working temperature | −20 °C to 70 °C |
| Grip & seal | Stainless spring washer · NBR O-ring — no tape |
| Shapes | PE · PEG · PV · PU · PG · PY · PYW · PZ |
| Part number | F-P-POM-AF-C-<type>-<size> |
All 34 part numbers, eight dimension tables and the component material list are on this page, as printed in the catalogue.
| At a glance | Push-in | Class 150 | Camlock |
|---|---|---|---|
| Media | Nylon/PU tube | Threaded pipe | Hose |
| Size | 4–12 mm OD | 1/8″–4″ | 1/2″–4″ |
| Pressure | 1.0 MPa | Class 150 | 250 PSI |
| Tools | None | Wrench | None |
Takes a branch off a run. The workhorse of the range — and the shape most lists run short of.
Drops from an 8 mm header to a 6 mm branch without a separate reducer.
Use one rather than bending the tube tight — a kinked tube restricts flow and eventually splits at the bend.
Joins two lengths of tube — what you reach for to repair a damaged run without pulling the whole length out.
The plain size change. More combinations in the dimension table — ask first.
Splits a feed to two devices with less tube strain than a tee in a tight cabinet.
A 10 mm feed into two 8 mm drops in a single part.
A four-way junction in one body — two tees need a connecting tube, one more joint to leak.
All eight shapes take tube on every port. There is no threaded version in this range, so the only thing to get right is the tube OD — and, on the reducing shapes, which leg is which. Dimensions for all eight are in the tables below.
| Part no | Catalogue description | Shape |
|---|---|---|
| F-P-POM-AF-C-PE-04 | 4MM POM PUSH IN UNION TEE | Union tee |
| F-P-POM-AF-C-PE-06 | 6MM POM PUSH IN UNION TEE | Union tee |
| F-P-POM-AF-C-PE-08 | 8MM POM PUSH IN UNION TEE | Union tee |
| F-P-POM-AF-C-PE-10 | 10MM POM PUSH IN UNION TEE | Union tee |
| F-P-POM-AF-C-PE-12 | 12MM POM PUSH IN UNION TEE | Union tee |
| F-P-POM-AF-C-PEG-06-04 | 6MM x 4MM POM PUSH IN UNION RED TEE | Reducing tee |
| F-P-POM-AF-C-PEG-08-06 | 8MM x 6MM POM PUSH IN UNION RED TEE | Reducing tee |
| F-P-POM-AF-C-PEG-10-08 | 10MM x 8MM POM PUSH IN UNION RED TEE | Reducing tee |
| F-P-POM-AF-C-PV-04 | 4MM POM PUSH IN UNION ELBOW | Union elbow |
| F-P-POM-AF-C-PV-06 | 6MM POM PUSH IN UNION ELBOW | Union elbow |
| F-P-POM-AF-C-PV-08 | 8MM POM PUSH IN UNION ELBOW | Union elbow |
| F-P-POM-AF-C-PV-10 | 10MM POM PUSH IN UNION ELBOW | Union elbow |
| F-P-POM-AF-C-PV-12 | 12MM POM PUSH IN UNION ELBOW | Union elbow |
| F-P-POM-AF-C-PU-04 | 4MM POM PUSH IN UNION COUPLING | Union coupling |
| F-P-POM-AF-C-PU-06 | 6MM POM PUSH IN UNION COUPLING | Union coupling |
| F-P-POM-AF-C-PU-08 | 8MM POM PUSH IN UNION COUPLING | Union coupling |
| F-P-POM-AF-C-PU-10 | 10MM POM PUSH IN UNION COUPLING | Union coupling |
| F-P-POM-AF-C-PU-12 | 12MM POM PUSH IN UNION COUPLING | Union coupling |
| F-P-POM-AF-C-PG-06-04 | 6MM X 4MM POM PUSH IN RED UNION | Reducing union |
| F-P-POM-AF-C-PG-08-06 | 8MM x 6MM POM PUSH IN RED UNION | Reducing union |
| F-P-POM-AF-C-PG-10-08 | 10MM x 8MM POM PUSH IN RED UNION | Reducing union |
| F-P-POM-AF-C-PY-04 | 4MM POM PUSH IN Y-SPLITER | Y-splitter |
| F-P-POM-AF-C-PY-06 | 6MM POM PUSH IN Y-SPLITER | Y-splitter |
| F-P-POM-AF-C-PY-08 | 8MM POM PUSH IN Y-SPLITER | Y-splitter |
| F-P-POM-AF-C-PY-10 | 10MM POM PUSH IN Y-SPLITER | Y-splitter |
| F-P-POM-AF-C-PY-12 | 12MM POM PUSH IN Y-SPLITER | Y-splitter |
| F-P-POM-AF-C-PYW-06-04 | 6MM x 4MM POM PUSH IN RED Y-SPLITER | Reducing Y |
| F-P-POM-AF-C-PYW-08-06 | 8MM x 6MM POM PUSH IN RED Y-SPLITER | Reducing Y |
| F-P-POM-AF-C-PYW-10-08 | 10MM x 8MM POM PUSH IN RED Y-SPLITER | Reducing Y |
| F-P-POM-AF-C-PZ-04 | 4MM POM PUSH IN UNION CROSS | Union cross |
| F-P-POM-AF-C-PZ-06 | 6MM POM PUSH IN UNION CROSS | Union cross |
| F-P-POM-AF-C-PZ-08 | 8MM POM PUSH IN UNION CROSS | Union cross |
| F-P-POM-AF-C-PZ-10 | 10MM POM PUSH IN UNION CROSS | Union cross |
| F-P-POM-AF-C-PZ-12 | 12MM POM PUSH IN UNION CROSS | Union cross |
Descriptions are reproduced as printed in the catalogue. The dimension tables below carry a few reducing combinations that are not in this part list — PEG12-8, PEG12-10, PG8-4, PG10-6, PG12-8, PG12-10, PYW12-8 and PYW12-10. Ask first; we confirm availability before you specify one on a drawing.
| No. | Component | Material |
|---|---|---|
| 1 | Rubber interface | POM |
| 2 | Positioning ring | Aluminium alloy |
| 3 | Spring washer | Stainless steel |
| 4 | Positioning seat | POM |
| 5 | O-ring | NBR |
| 6 | Body | Aluminium alloy |
| 7 | Rubber pad | NBR |
| 8 | Hex socket screw | Aluminium alloy |
The ring of teeth that bites the tube OD. Stainless rather than plated steel is what stops it rusting into the tube on a humid line.
NBR is good with air, water and mineral oil. If your medium is anything else, tell us before you order.
The positioning seat is the collar you press to release; the rubber interface keeps the tube square in the port.
Not of the body. It is the number to check against a hot compressor discharge or an outdoor line in a cold store.
The catalogue features page lists the body as aluminium alloy, while the part numbers carry a POM code. Both are shown here as printed; we confirm the material of the specific part on the quotation.
Union tee — PE
| Series | ΦD | ΦP | K | E | ΦJ | JB | Weight (g) |
|---|---|---|---|---|---|---|---|
| PE4 | 4 | 9 | 14 | 17 | 3.2 | 6.5 | 3.1 |
| PE6 | 6 | 12.5 | 16.5 | 20 | 3.2 | 8 | 6.1 |
| PE8 | 8 | 15 | 18.5 | 23 | 4.3 | 9.5 | 8.8 |
| PE10 | 10 | 18 | 21 | 26.5 | 4.3 | 11 | 13.8 |
| PE12 | 12 | 21 | 23 | 30 | 4.3 | 13 | 21 |
Union reducing tee — PEG
| Series | ΦDA | ΦDB | ΦP | KA | KB | EA | EB | ΦJ | JB | Weight (g) |
|---|---|---|---|---|---|---|---|---|---|---|
| PEG6-4 | 6 | 4 | 12.5 | 16.5 | 14 | 20.0 | 19.5 | 3.2 | 8 | 7 |
| PEG8-6 | 8 | 6 | 15 | 18.5 | 16.5 | 22.5 | 22 | 4.3 | 9.5 | 22.8 |
| PEG10-8 | 10 | 8 | 18 | 21 | 18.5 | 25.5 | 25.5 | 4.3 | 11 | 15.1 |
| PEG12-8 | 12 | 8 | 21 | 23 | 18.5 | 29 | 28.5 | 4.3 | 13 | 2.2 |
| PEG12-10 | 12 | 10 | 21 | 23 | 21 | 29 | 29 | 4.3 | 13 | 21.5 |
Union elbow — PV
| Series | ΦD | ΦP | K | E | ΦJ | JB | Weight (g) |
|---|---|---|---|---|---|---|---|
| PV4 | 4 | 9 | 14 | 17 | 3.2 | 6.5 | 1.9 |
| PV6 | 6 | 12.5 | 16.5 | 20 | 3.2 | 8 | 4.2 |
| PV8 | 8 | 15 | 18.5 | 23 | 4.3 | 9.5 | 6 |
| PV10 | 10 | 18 | 21 | 26.5 | 4.3 | 11 | 9.3 |
| PV12 | 12 | 21 | 23 | 30 | 4.3 | 13 | 14.6 |
Union coupling — PU
| Series | ΦD | ΦP | K | A | Weight (g) |
|---|---|---|---|---|---|
| PU4 | 4 | 9 | 14 | 29.5 | 1.7 |
| PU6 | 6 | 12.5 | 16.5 | 34 | 3.6 |
| PU8 | 8 | 15 | 18.5 | 38.5 | 5 |
| PU10 | 10 | 18 | 21 | 43 | 8.1 |
| PU12 | 12 | 21 | 23 | 47 | 12 |
Reducing union — PG
| Series | ΦDA | ΦDB | ΦPA | ΦPB | KA | KB | A | Weight (g) |
|---|---|---|---|---|---|---|---|---|
| PG6-4 | 6 | 4 | 12.5 | 9 | 16.5 | 14 | 33.5 | 2.7 |
| PG8-4 | 8 | 4 | 15 | 12.5 | 18.5 | 14 | 37.5 | 4.5 |
| PG8-6 | 10 | 6 | 15 | 12.5 | 18.5 | 16.5 | 38 | 4.5 |
| PG10-6 | 10 | 6 | 18 | 15 | 21 | 16.5 | 42 | 6.9 |
| PG10-8 | 10 | 8 | 18 | 15 | 21 | 18.5 | 42.5 | 6.7 |
| PG12-8 | 12 | 8 | 21 | 18 | 23 | 18.5 | 46.5 | 10.3 |
| PG12-10 | 12 | 10 | 21 | 18 | 23 | 21 | 47 | 10.2 |
Y-splitter — PY
| Size | ΦD | ΦP | C | K | ΦJ | JA | DC | Weight (g) |
|---|---|---|---|---|---|---|---|---|
| 4 mm | 4 | 9 | 31.5 | 14 | 3.2 | 13 | 10 | 3 |
| 6 mm | 6 | 12.5 | 37 | 16.5 | 3.2 | 15.5 | 12 | 6 |
| 8 mm | 8 | 15 | 42.5 | 18.5 | 3.2 | 17 | 14.5 | 8.6 |
| 10 mm | 10 | 18 | 48.5 | 21 | 4.3 | 19.5 | 18 | 14 |
| 12 mm | 12 | 21 | 54.5 | 23 | 4.3 | 21 | 20.5 | 21.2 |
The catalogue labels the Y-splitter dimension rows with the PE series names; they are listed here by tube OD so they are not confused with the union tee. Order by part number — F-P-POM-AF-C-PY-<size>.
Reducing Y-splitter — PYW
| Series | ΦDA | ΦDB | C | ΦP | KA | KB | ΦJ | JA | DC | Weight (g) |
|---|---|---|---|---|---|---|---|---|---|---|
| PYW6-4 | 6 | 4 | 36.5 | 12.5 | 16.5 | 14 | 3.2 | 15 | 12 | 5.8 |
| PYW8-6 | 8 | 6 | 42 | 15 | 18.5 | 16.5 | 3.2 | 16.5 | 14.5 | 9.1 |
| PYW10-8 | 10 | 8 | 48.5 | 18 | 21 | 18.5 | 4.3 | 19 | 18 | 14.1 |
| PYW12-8 | 12 | 8 | 54 | 21 | 23 | 18.5 | 4.3 | 20.5 | 20.5 | 22.3 |
| PYW12-10 | 12 | 10 | 54.5 | 21 | 23 | 21 | 4.3 | 21 | 20.5 | 21.7 |
Union cross — PZ
| Series | ΦD | A | ΦP | K | ΦJ | JB | JC | Weight (g) |
|---|---|---|---|---|---|---|---|---|
| PZ4 | 4 | 34 | 9 | 14 | 3.2 | 6.5 | 13 | 3.9 |
| PZ6 | 6 | 39.5 | 12.5 | 16.5 | 3.2 | 8 | 16 | 7.9 |
| PZ8 | 8 | 46 | 15 | 18.5 | 4.3 | 9.5 | 19 | 11.1 |
| PZ10 | 10 | 52.5 | 18 | 21 | 4.3 | 11 | 22 | 17.5 |
| PZ12 | 12 | 59.5 | 21 | 23 | 4.3 | 13 | 26 | 26.6 |
ΦD is the tube OD the port accepts. ΦP is the outside diameter of the collar — what decides whether two fittings will sit side by side on a manifold. All dimensions in millimetres and weights in grams, as printed in the AF Hydro catalogue.
Use a tube cutter. A slanted or crushed end is the most common cause of a leaking joint — the O-ring seals on the tube OD, so it needs a clean, round, undamaged surface.
There is a shoulder inside the port. If the tube is short of it, the grip washer is holding only the very end of the tube.
The tube should not move. One second that catches a short insertion before the line is pressurised.
Depressurise first, then press the collar in and hold it while you pull the tube out. Pulling without pressing the collar makes the washer bite harder, not release.
A tube released under pressure whips. On a compressed air line that is an injury, not a nuisance.
There is no thread here. The seal is the O-ring against the tube OD — anything smeared on that surface makes it worse, not better.
The fitting is designed to be released and remade. The tube is not — the grip washer marks the outside surface, so cut back past the marks before re-inserting.
A push-in fitting holds the tube, but it is not a clamp. A long unsupported run loads the port — use tube clamps on anything that vibrates.
Every shape, part number and dimension is in the catalogue, as printed; stock and price are not — send the list and we confirm both.
How many tees, elbows, couplings, crosses — by shape. We price it as one schedule.
4, 6, 8, 10 or 12 mm — and on the reducing shapes, both leg sizes.
Nylon flexible or PU. We check it against the fitting before the order goes in.
Air, water and mineral oil suit NBR. Anything else — tell us, we check first.
The limit is −20 to 70 °C — say so if the line is near a compressor discharge or in a cold store.
Shop air drops, air tooling and blow-off lines. The pressure is low, the tube count is high, and the layout changes every time a machine moves.
Cylinders, valves and actuators on production machinery. The Y-splitter and reducing tee earn their place here — one feed serving several devices in a tight cabinet.
Coolant, low-pressure lubrication and drain lines around a machine tool — where a joint needs to come apart for service without cutting tube.
Small-bore runs to gauges, switches and transmitters. Vacuum too: the catalogue rates the fitting to 750 mmHg negative pressure.
Low-pressure water, filtration and dosing lines in nylon or PU tube. NBR seals are fine with water — for chemicals, tell us first.
Anything that has to be plumbed today and changed tomorrow. No thread, no tool, and the fittings go back in the box afterwards.
4, 6, 8, 10 and 12 mm tube OD. The size is the outside diameter of the tube — not a thread and not a bore. The reducing shapes combine two sizes in one part; the standard part list carries 6×4, 8×6 and 10×8.
The catalogue gives a working pressure range of 0–10 kgf/cm², which is 0–1.0 MPa, and a negative pressure figure of 750 mmHg (10 Torr) for vacuum service. Its main technical parameter table also lists a high pressure figure of 1.6 MPa. Both are shown here as printed — send us your line pressure and we will confirm which applies.
Nylon flexible tube or PU tube, to the nominal OD of the fitting. The tube has to be round, cut square and undamaged on the outside surface — that is where the O-ring seals. Not for metal tube and not for hose.
Depressurise the line first. Then press the collar in and hold it while you pull the tube out. Pulling without pressing the collar makes the stainless grip washer bite harder rather than release — the same mechanism that holds the joint under pressure.
Yes — the fitting is designed to be released and remade. The tube is the part to watch: the grip washer leaves a ring of marks in the outside surface, and that section will not seal reliably a second time. Cut back past the marks before you push it in again.
−20 to 70 °C. That limit belongs to the NBR seals and the plastic components rather than to the body — so it is the number to check against a hot compressor discharge or an outdoor line in a cold store.
Eight components. Body and positioning ring aluminium alloy, rubber interface and positioning seat POM, spring washer stainless steel, O-ring and rubber pad NBR. The catalogue features page describes the body as aluminium alloy while the part numbers carry a POM code; both are shown as printed, and we confirm on the quotation.
Almost always the tube end. The O-ring seals on the outside surface of the tube, so a cut that is slanted, crushed by pliers or scored will leak no matter how far in it goes. Cut it square with a tube cutter, push it in until it stops, pull back to check. Do not add tape or sealant — there is no thread here.
The range on this page is tube-to-tube only — all eight shapes take tube on every port. If you need a push-in port on a threaded boss, tell us the thread and the tube size and we will quote it separately rather than substitute something that looks close.
Usually, yes. Two tees need a short length of tube between them — one more joint to leak and roughly twice the space. The union cross, PZ4 to PZ12, puts four equal ports on one body.
Push-in is for small-bore plastic tube at low pressure. For threaded stainless pipework at 150 lb see Class 150 fittings; for hose that gets connected and disconnected see camlock fittings; for steel tube at working pressure see high-pressure fittings.
We hold the range in our regional warehouses in Singapore and Malaysia, shipping within 24 hours of PO. Quotes come back within 2 working hours — send the count by shape and by size and we price the lot as one schedule.
Related: Class 150 fittings · camlock fittings · tube clamps to support the run · about the AF Hydro brand · all low-pressure fittings · baca halaman ini dalam Bahasa Indonesia
