Tube 18.4/15-38 TR218A
87,91 €
Tube 18.4/15-38 TR218A
87,91 €
Shipping price from: 6,90 €
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Tube 18.4/15-38 TR218A
Product.Nr.: 990017165
Manufacturer: Novio
This robust inner tube in size 18.4/15-38 is designed for use in agricultural and industrial applications. It is ideal for tractors, work machines and equipment that rely on reliable air tightness and high load capacity. Thanks to its optimized construction, the tube can be used in several common tyre sizes and ensures a secure fit in the tyre as well as stable driving characteristics.
Technical data
- Tube size: 18.4/15-38
- Rim size: 38 inch
- Also suitable for: 460/85-38, 520/70-38, 600/65-38
- Valve type: TR218A
Valve-specific data (TR218A)
- Valve type: TR218A (tractor/tube valve for agricultural and industrial tyres)
- Valve hole diameter: approx. 16 mm (standardized bore for TR218A rim valve holes)
- Valve length: approx. 38–45 mm above the rim surface (depending on rim contour)
- Design: Straight metal valve with large locknut for secure fixing in the rim
- Valve core: Replaceable core, suitable for high inflation pressure
- Seal: Rubber seal with locknut for reliable sealing in the rim hole
- Medium: Air (suitable for standard tyre inflation in agricultural and industrial tyres)
Benefits and application range
This tube is a flexible solution for various tyre sizes in the 38-inch range, reducing the need for different tube variants in your fleet. Thanks to the compatible dimensions 460/85-38, 520/70-38 and 600/65-38, it can be used in numerous tractor and work machine tyres.
The TR218A valve type is specially designed for large-volume agricultural and industrial tyres and allows convenient inflation and controlled deflation of air. The robust metal construction of the valve ensures high pressure resistance and durability, even under tough operating conditions in the field, on the farm or on construction sites.
This tube is particularly suitable for:
- Agricultural machinery such as tractors and implements
- Municipal and yard equipment
- Industrial and construction machinery with suitable 38-inch tyres
Thanks to its sturdy design, this tube contributes to reliable operation, reduced downtime and economical use of your machinery.
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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