Scientific and simple definition of battering ram
This pressure wave hits the pipe walls and connections like a hammer. That is why it is called Water Hammer. In response to the question What is a ram blow in an irrigation pipe? it can be said: a sudden and destructive increase in water pressure caused by a sudden change in the flow rate in the piping system. This phenomenon can create a pressure several times the allowed working pressure of the pipe and cause the pipes to burst. The use of standard and resistant pipes Lisa Pipe can greatly increase the resistance of the network against these stresses.
The main causes of ram impact in agricultural systems
Now that we have understood what is a ram blow in an irrigation pipe? we should know what factors cause it. Knowing the reasons is the first step for prevention.
1. Fast closing of valves
One of the main reasons for creating a hammer blow in the irrigation pipe is the use of valves that close quickly. Ball valves or butterfly valves, if closed quickly, cut off the water flow in a fraction of a second. This sudden interruption causes the energy of the water to be released in the form of a destructive pressure wave in the system.
2. Sudden shutdown of the pump
In agricultural pumping stations, a sudden power cut or pump failure causes the engine to stop. In this case, the water that went up in the thrust pipe suddenly stops and returns to the pump. The collision of this column of return water with the closed one-way valve creates a very strong ram blow in the irrigation pipe which can destroy the pump and outlet pipes.
3. The presence of air trapped in the pipe
Air in irrigation pipes can be both friend and enemy. However, if the stray air bubbles are not discharged properly, they can cause compressibility of the flow and create strong pressure fluctuations when moving, which leads to the intensification of ramming in the irrigation pipe.
Consequences and risks of ignoring ram blow
Many farmers do not know the real consequences of ram hitting the irrigation pipe? and they think these sounds are normal. But the damages caused by this phenomenon can paralyze your irrigation system:
- Rupture of pipes: The most common damage is broken pipes at weak points or joints. If your pipes are of poor quality, they will succumb to the first impact. The polyethylene pipes of Lisa Pipe, having proper elasticity, have a much higher resistance to these shocks than dry and low-quality pipes.
- Damage of pumps and equipment: The return pressure wave can break the pump impeller, tilt the shaft and damage expensive valves. Connections become loose and water leaks, which wastes a lot of money and water in the long run.
- Decreasing the useful life of the system: When you constantly ask yourself What is a ram blow in an irrigation pipe? and you do not take action, you are actually reducing the useful life of your irrigation network from 10 years to 2 years.
The role of pipe quality in controlling ram impact; Why Lisa Pipe?
In the topic of what is a ram blow in an irrigation pipe?, the type of pipe plays a key role. Pressure wave propagation speed is different in different pipes. The stiffer and drier the pipe is (such as metal pipes or dry PVC), the ram shock wave is transmitted with greater speed and intensity. But polyethylene pipes (PE) due to their viscoelastic properties, can absorb part of the impact energy by slightly expanding.
Lisa Pipe Company, by producing first-class polyethylene pipes in accordance with national and international standards, offers products that have a high tolerance against sudden stresses. The raw materials used in Lisa Pipe products have standard elasticity. This means that when ram impact occurs in the irrigation pipe, the Lisa Pipe pipes will temporarily deform a little to dissipate the energy of the wave instead of breaking. Choosing the right pipe from a reputable brand like Lisa Pipe is a life insurance policy for your irrigation system.
Practical methods to prevent and eliminate hammertoe
Now that we have fully understood What is a ram blow in an irrigation pipe?, it is time for solutions. Engineers and designers of irrigation systems suggest different methods to control this destructive force.
1. Choosing the right pipe diameter
One of the main reasons for the intensity of the hammer blow in the irrigation pipe is the high speed of the water. The narrower the pipe, the higher the water velocity and thus the stronger the ram impact. By choosing the right size pipe from the Lisa Pipe product catalog, you can keep the water speed within the standard range (usually below 2 meters per second) and reduce the risk.
2. Using Air Vent valves
Installation of air valves in the high places of the ground and at the end of the lines will allow the trapped air to be discharged and also when the pump is turned off, air will enter the system so as not to create a vacuum. This work has a great effect in reducing hammer blow in the irrigation pipe.
3. Using Surge Tanks
4. One-way valves and assurance
Using standard one-way valves that close slowly, as well as safety valves that drain some water in case of a sudden increase in pressure, are effective solutions. Lisa Pipe technical consultants can guide you in choosing the best connections and how to arrange them.
5. Soft starter for pumps
Instead of turning the pump on or off suddenly, you can use soft starter devices that slowly increase and decrease the engine speed. This work makes the change of the speed of the water flow gradual and practically eliminates the phenomenon of ram hit in the irrigation pipe during the start and stop of the pump.
Technical calculations of ram impact and the importance of pipe thickness
For more precise engineers, the answer to What is a ram blow in an irrigation pipe? involves Zhukovsky's formulas. According to this formula, pressure increase has a direct relationship with wave speed and water speed change. The wave speed in the pipe depends on the material and thickness of the pipe wall. Lisa Pipe pipes with a variety of pressure categories (PN6, PN10, PN16, etc.) leave the designer's hands free to choose a pipe that can withstand the increase in pressure caused by the ram impact in the irrigation pipe.
If you use weak and uncertified pipes, even a small ram blow can cause microscopic cracks that open over time and lead to a complete pipe burst. Lisa Pipe by guaranteeing the quality of raw materials and standard wall thickness, ensures that the pipes are able to withstand nominal pressures and momentary shocks.
Recognizing the symptoms of ram impact in agricultural land
Observation of any of these symptoms means your system is in danger and the phenomenon of ram hitting the irrigation pipe is destroying your infrastructure. In this situation, contacting the experts and replacing the damaged parts with resistant pipes Lisa Pipe can prevent further losses.
The importance of training irrigation operators
Sometimes even the best equipment cannot prevent human error. Part of the answer to this problem, which is the solution to the ram hit in the irrigation pipe?, is in the hands of workers and irrigators. They should be trained to never turn off the faucets suddenly. Opening and closing the valves should be done gradually and within a few seconds. This simple culture can largely prevent the creation of ram's blow in the irrigation pipe.
Lisa Pipe; Your reliable companion against pressure fluctuations
Lisa Pipe company, with years of experience in the production of pipes and polymer fittings, knows very well the challenges of an irrigation system and what is a ram blow in an irrigation pipe? The products of this company successfully pass impact and pressure tests by using the world's latest technology and well-equipped quality control laboratories.
When you choose Lisa Pipe pipes, you are not buying just one product; Rather, you provide the security of your irrigation system. High chemical resistance, non-precipitation, and most importantly, excellent flexibility against hydraulic shocks, are the features that distinguish Lisa Pipe from competitors. If you're worried about a ram hitting irrigation pipe ruining your investment, put your mind at ease by replacing the worn parts with Lisa Pipe products.
Hidden costs of battering ram
Many farmers look for the cheapest option when buying pipes and think they have saved money. But when we ask them what is the real cost of a ram blow in an irrigation pipe?, they realize that buying a cheap pipe was actually the most expensive choice. The cost of ongoing repairs, the cost of labor for drilling and replacing the pipe, and most importantly the damage caused by the product remaining dry on hot summer days due to the system failure, is ten times the difference in the price of a high-quality pipe Lisa Pipe and miscellaneous pipes.
A basic irrigation system in which calculations of ram impact in the irrigation pipe have been made and standard Lisa Pipe pipes are used, can work for years without trouble and additional costs. Thinking economically means buying quality for the long term.
The ultimate checklist for dealing with battering ram
To sum up what is the solution to deal with a ram blow in an irrigation pipe?, always keep this checklist in mind:
final word
The water hammer phenomenon is an unavoidable fact in fluid physics, but it is not mandatory to submit to it. Now that you know what is ram blow in the irrigation pipe? and what power it has in destruction, you can stand in front of it with smart decisions. The key to success is in two things: correct design and use of high-quality materials.
Lisa Pipe company is proud to stand by the hardworking farmers of Iran by producing resistant and durable polyethylene pipes so that they don't have to worry about anything but harvesting. Don't let the ram hitting the irrigation pipe disturb your peace. Keep the water flow safe and stable by choosing Lisa Pipe. For consultation and purchase of pressure-resistant products, contact the sales experts of Lisa Pipe today.
