Inner Tube Valve Type - Step 2
Inner tubes have a variety of different valve types for different applications. These fall into 2 main categories: Bent or straight valves
There are variations of each, but usually bent valves are metal and can have varying lengths and angles at which the valve bends at. The bent valves are usually used when space is limited in the wheel and so the valve needs to come out of the rim at an angle to ease inflation. They are also used in applications where the valve may be susceptible to damage from hazards that the wheel may brush up against in use. Having a bend in the valve helps protect the tube from being damaged from unwanted contact. Bent valves are very common on small wheels and tyres like those that are used for small machinery, generators, sack trucks and material handling equipment such as trolleys. They are also used in small turf machinery, Forklift trucks and even HGV’s and trucks!
Straight valves can come with a rubber or metal stem and also offer different inflation methods such as water inflation.
Rubber valves are found in a huge range of machinery and equipment due to their versatility, durability and price. These can be used in lawnmowers, ATV’s, wheel barrows, cars and all the way through to tractors and agricultural machinery. The most common sizes of straight rubber valves are TR13 and TR15.
Metal valves offer increased resilience to knocks and scrapes whilst in operation. The metal valve is usually used in higher pressure applications but also offer different inflation methods such as water, to allows for water ballast tyres and machinery often found in agricultural uses. Most larger tractor tyres use the metal valve type due to the increased durability that they offer.