Tube 11.2/10-28 TR218A suitable for 280/85-28, 320/70-28
57,91 €
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Tube 11.2/10-28 TR218A suitable for 280/85-28, 320/70-28
Product.Nr.: 990017036
Manufacturer: Novio
This high-quality 11.2/10-28 inner tube with TR218A valve is designed for agricultural and industrial applications where robust and reliable tube solutions are required. It is ideal for tractors, machinery and carriers equipped with tyres of the corresponding dimensions. Thanks to the matched size and the special valve design, the tube ensures secure sealing, convenient inflation and deflation, and a long service life even under demanding operating conditions.
Technical data
- Tube size: 11.2/10-28
- Rim diameter: 28 inch
- Also suitable for tyre sizes: 280/85-28, 320/70-28
- Valve type: TR218A
Valve-specific data TR218A (typical design)
- Valve type: Agricultural/industrial valve, straight design
- Valve application range: For tube-type tyres in agricultural and industrial use
- Valve hole (rim hole): approx. 16 mm
- Valve length above rim: approx. 38–45 mm (depending on rim contour)
- Valve core: Replaceable insert, allows easy deflation and inflation
- Sealing concept: Rubber base with metal valve, sealing in the rim hole
- Connection: Standard thread for common inflation devices and pressure gauges
Benefits and application
The 11.2/10-28 tube with TR218A valve is a reliable solution for tyres in size 11.2/10-28 as well as for the compatible dimensions 280/85-28 and 320/70-28. It is typically used on tractors, agricultural implements, municipal and industrial machines where stable air retention and high load capacity are required.
The TR218A valve facilitates inflation even on high-volume tyres and is designed for high pressures in agricultural and industrial applications. The robust valve construction ensures secure sealing in the rim hole, while the tube itself is designed for durability and resistance. This makes the product particularly suitable for operations that depend on reliable technology and minimal downtime.
Frequently asked questions about this product
The valve designation describes two things: the stem diameter — which must fit the hole in the rim — and the shape, i.e. straight or angled.
Only the bore matters for a proper fit: a valve fits perfectly only if its stem matches the bore in the rim. Whether it is straight or angled makes no difference — that is a question of accessibility.
An overview of the types:
| Type | Shape | Bore | typically used for |
|---|---|---|---|
| TR13 | straight, rubber | 11.5 mm | Car and trailer wheels |
| TR4 / TR6 | straight, short | 11.5 mm | Small wheels, garden tools |
| TR15 | straight, rubber | 16 mm | Agricultural machinery, tractor rims |
| TR87 | 90° angled | 11.5 mm | Small wheels, solid rims |
| JS8 (DIN 7777) | 90° angled, same as TR87 | 11.5 mm | small wheels, solid rims |
| JS2 | Approx. 70° angled | 11.5 mm | Industrial and small wheels |
| V3-02-7 (TR75) | 100° single-bend metal angle valve with screw-on base | 12.2 mm | Commercial vehicles, lorries, trailers, agricultural and industrial machinery such as forklift trucks |
| V3-06-3 | Triple-bend brass truck screw-on valve (90°/139°/139°) | 9.7 mm | 20-inch truck and trailer tubes (6.00-20 to 9.00-20), also 22.5-inch tube-type tyres |
| TR218A | Straight metal air-water valve, two-piece | 15.9–16 mm | High-volume tubular tyres for agricultural and industrial use, tractors |
V3-02-7 in detail: Also known as ETRTO V3.02.7 and US designation TR75. Dimensions: Horizontal leg length 22.5 mm, vertical leg length 71.5 mm, total height approx. 91 mm. The valve base is screwed on, not pressed in — this makes it significantly more robust than a rubber valve.
V3-06-3 in detail: Also known as ETRTO V3.06.3. Triple-bend brass screw-on truck valve: the first bend is 90°, the other two 139° each — this guides the filling end past the rim flange and keeps it accessible even with twin tyres and deep rim wells. Leg dimensions approx. 20.5 / 46 / 20.5 / 47.5 mm (approx. 135 mm developed length), rim hole 9.7 mm. The valve is fastened to the tube with a sealing washer and nut instead of being vulcanised in. In our range on the 20-inch tubes 6.00/6.50-20, 7.00/7.50-20, 8.25-20 and 9.00-20.
TR218A in detail — the valve for water ballast: What makes this type special is the option for liquid ballasting: the hose is partially filled with water to increase the vehicle’s weight and thus improve traction — a common practice with tractors.
- Design: straight, robust metal valve, usually in two parts. Unscrewing the inner CH3 valve insert creates an extra-large opening — allowing for quick filling with air or liquid.
- Rim bore: 15.9 to 16 mm (0.625 inches).
- Length: typically around 38 to 48 mm total height above the rim.
- Mounting: a rubber base approximately 80 mm in diameter for vulcanising onto the inner tube, plus a lock nut for secure attachment to the rim.
Reducing sleeves: A TR15 valve does not fit into an 11.5 mm bore. Conversely, there are sleeves that allow a TR13 valve to fit into a 16 mm bore.
Whether straight or angled is not a question of fit, but of accessibility: with closed rims or small wheels, it is often impossible to reach the valve with a pump using a straight valve — in which case an angled one is used.
Not sure which valve is fitted? A photo of the old valve is all we need to identify it. Choose from: inner tubes, bead tapes and valves.
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