Machines are incredible, but require unique components in order to function properly. The one of these component is a pressure limiting valve. To imagine a limiting valve consider this as a careful helper which protects the machine from harm during the operation.
Big, muscle-y machines, such as bulldozers and cranes, have a special liquid that flows through pipes that help the machine work. This liquid has to push just the right amount - not too hard and not too soft. If the liquid exerts too much pressure, it may break the machine. This is where the limiting valve comes into play to assist!
Think of the pressure limiting as some clever guardian of the machine. It records how hard the liquid is pressed through the pipes. When the liquid begins to force too much, the valve comes into play and halts the surplus pressure. It is similar to a superhero at work that keeps the machine from breaking or getting damaged.
Limiting valves of different types do different work. Other valves prevent the machine from overflowing by allowing excess liquid to escape. Other valves translate movement from one part of a machine to another, at just the right moment. Some valves ensure seamless and consistent flow of liquid, just like a traffic guard ensuring smooth traffic.

Curious how a limiting valve works? It’s just like playing with a garden hose! When you try covering part of a hose with your thumb, the water can't flow out as quickly. This increases the water pressure contained within the hose. A limiting valve functions quite similarly to this, determining how much liquid may pass.

Not that limiting valves never have problems — they can, and sometimes small ones at that. Dirt may become lodged within them or they could get stuck in a single orientation. That is why checking these valves regularly is essential for people functioning with machines. For this, cleaning the valves and ensuring they are functioning well is extremely important.

It is same as taking care of special tool. And just like you clean your bicycle or your toys, machine workers have to clean and check these valves. When they do, the machines perform better, last longer, and keep workers safe.
Derun has over 300 sets of the most advanced processing equipment that allows the introduction of limiting valve production technology, modern manufacturing and testing equipment, and the introduction to industry of research and development and manufacturing technology. Derun has more than 360 employees comprising 10 senior engineers and 20 quality-control managers. Fuel injectors, injector valve assemblies, fuel pumps various nozzles, and more have been developed successfully.
Derun is one of the limiting valve for automotive components manufacturers in China that has more than more than 38 years of production and more than 1,000 components. The products we sell are sold all over the world, through 300+ dealers. It has currently set up 3 subsidiaries in China and has established strong cooperating relationships with more than 30 countries around the globe.
Derun is an organization that has been certified by ISO9001 and ISO/ limiting valve quality control system. Derun utilizes a wide range of quality testing equipment and inspects each component before it leaves the factory.
Derun is committed to the growth of green companies as its main goal. The company always puts the protection of the environment in the first place in the production and research and development. Derun is committed to the limiting valve of diesel engines with low emissions, low noise, high performance and light pollution.
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