ITF-04 · Fluid Transfer Tubing

Multi-Layer Tubing
Fluoropolymer Purity. Flexible Outer. One Tube.

Two constructions — AP1 (fluoropolymer inner + nylon outer) and UP1 (fluoropolymer inner + polyurethane outer) — deliver the chemical purity of fluoropolymer with the flexibility, kink resistance, and pressure capability that single-layer fluoropolymer cannot achieve. Layers are permanently bonded by monolithic molding.

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Pure Fluoropolymer Is Chemically Perfect. But It Kinks, Collapses, and Costs More Than Necessary.

When a solvent, paint, or chemical fluid requires fluoropolymer purity at the wetted surface, specifying a solid PFA or FEP tube solves the chemistry — but creates mechanical problems. Pure fluoropolymer is stiff, prone to kinking, and difficult to route in tight installations. Adding pressure resistance requires thick walls that reduce flexibility further.

Multi-layer construction solves this directly. The inner fluoropolymer layer contacts the fluid. The outer nylon (AP1) or polyurethane (UP1) layer provides the flexibility, kink resistance, abrasion resistance, and pressure capability that fluoropolymer alone cannot deliver — all in a permanently bonded, monolithic structure that cannot delaminate.

Two Constructions

AP1

Fluoropolymer Inner + Soft Nylon Outer

Higher pressure rating (up to 2.0 MPa). Stiffer outer for abrasion-prone runs. Milky-white appearance.

Temperature: -20 to +70°C

Max Pressure: Up to 2.0 MPa

Sizes: 4–10 mm OD

Fittings: Compatible with Brass and Stainless Fittings

UP1

Fluoropolymer Inner + Polyurethane Outer

Maximum flexibility. Anti-twist routing possible with Stainless Fitting US2 Series. Do not use where solvents/chemicals spatter on the outer surface.

Temperature: -20 to +70°C

Max Pressure: Up to 0.6 MPa

Sizes: 4–12 mm OD

Fittings: Compatible with Brass and Stainless Fitting US2 Series

AP1 Part Numbers

Burst and max operating pressure at 23°C. Standard lengths: 20 m and 100 m. Color: Milky-White.

Part No.	OD × ID	Burst (23°C)	Max Op. Pressure	Min Bend
AP1-0425	4 × 2.5 mm	8.0 MPa	<2.0 MPa	15 mm
AP1-0640	6 × 4 mm	7.2 MPa	<1.8 MPa	20 mm
AP1-0860	8 × 6 mm	5.6 MPa	<1.4 MPa	35 mm
AP1-1080	10 × 8 mm	4.0 MPa	<1.0 MPa	50 mm

UP1 Part Numbers

Standard lengths: 20 m and 100 m. Color: Milky-White. Do not use where solvents spatter on the outer surface.

Part No.	OD × ID	Burst (23°C)	Max Op. Pressure	Min Bend
UP1-0425	4 × 2.5 mm	2.4 MPa	<0.6 MPa	12 mm
UP1-0640	6 × 4 mm	2.4 MPa	<0.6 MPa	20 mm
UP1-0850	8 × 5 mm	2.4 MPa	<0.6 MPa	23 mm
UP1-1065	10 × 6.5 mm	2.4 MPa	<0.6 MPa	32 mm
UP1-1280	12 × 8 mm	2.4 MPa	<0.6 MPa	40 mm

Organic Solvent Resistance

◎ No change | ○ Practically resistant | △ Gradually affected | × Affected

Inner layer is fluoropolymer for both AP1 and UP1 — outer layer material differs.

Chemical	AP1 Inner	AP1 Outer (Nylon)	UP1 Inner	UP1 Outer (PU)
Benzene	◎	△	◎	△
Toluene	◎	△	◎	△
Hexane	○	△	○	△
Oil	◎	○	◎	○
Methylene Chloride	○	△	○	×
Methyl Alcohol	◎	△	◎	△
Ethyl Alcohol	◎	△	◎	△
Acetone	○	△	○	△
Water	◎	◎	◎	◎
Seawater	◎	◎	◎	◎

Full chemical resistance table including ester, ketone, ether, and alcohol groups in catalog.

Applications

Painting & coating equipment tubingDental equipment fluid linesSemiconductor manufacturingSolvent transfer systemsHydraulic & pneumatic equipmentFood products manufacturingViscous liquid transferCentralized lubrication equipmentChemical plant pipingAnalysis equipment tubing

Request a Quote

Specify construction (AP1 or UP1), OD × ID, and required length. Koto will respond within one business day.

Download Full Catalog

Complete AP1/UP1 tables, full chemical resistance data, and pressure-temperature curves.

Junkosha-ITFDE.pdf

Multi-Layer TubingFluoropolymer Purity. Flexible Outer. One Tube.