Tube 8/8.5-17.5 Valve VS3-21-1
18,90 €
Tube 8/8.5-17.5 Valve VS3-21-1
18,90 €
Shipping price from: 6,90 €
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Tube 8/8.5-17.5 Valve VS3-21-1
Product.Nr.: 990017401
Manufacturer: Novio
This tube 8/8.5-17.5 with valve type VS3-21-1 is designed for demanding use in industrial and commercial vehicle applications. It is particularly suitable for tyres in size 8/8.5-17.5 as well as the alternative dimension 215/75-17.5. Thanks to its robust design, the tube offers reliable airtightness and high load capacity, as required for trailers, transport vehicles and comparable applications.
Technical data
- Tube size: 8/8.5-17.5
- Rim size (inch): 17.5 inch
- Also suitable for: 215/75-17.5
- Valve type: VS3-21-1
Valve-specific data (VS3-21-1):
- Valve design: metal valve for tube-type truck/industrial applications
- Valve hole (rim hole): approx. 15.7 mm (0.625")
- Valve length: approx. 38–45 mm above rim contour (straight design)
- Design: straight valve, externally fastened with lock nut
- Seal: rubber seal with metal base for secure sealing in the valve seat
- Valve cap: removable, to protect the valve core from dirt and moisture
- Suitable for: air inflation with standard compressed air systems
Advantages and application range
The 8/8.5-17.5 VS3-21-1 tube is a reliable solution for vehicles and machines fitted with tyres in size 8/8.5-17.5 or 215/75-17.5. Its precisely matched dimensions ensure an optimal fit inside the tyre, contributing to smooth running and stable load distribution.
The robust metal valve VS3-21-1 is designed for higher operating pressures and, thanks to its straight design, provides easy access for pressure checks and inflation. The tube is particularly suitable for trailers, light to medium commercial vehicles, industrial transport equipment and similar applications where reliability, airtightness and ease of maintenance are paramount.
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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