Differences between self-compensating and turbulent drippers

Differences between self-compensating and turbulent drippers
Differences between self-compensating and turbulent drippers

When considering the option of installing a drip irrigation system, several questions must be resolved, one of which is whether the system that we will install will be a self-compensating dropper or turbulent. It is very important to know the differences between the two in order to make the best choice since the performance of one or the other can vary greatly depending on the topographical situation of the terrain, for example.

What is self-compensating and turbulent drippers and how do they work?

About what it is, we simply have to say that it is about drip irrigation systems whose objective is the same: to maintain the water flow more or less constant, although each one does it in a different way so that it can be more or less suitable under what circumstances.

The self-compensating dripper It has a membrane that works under pressure: the greater the pressure, the greater the resistance the membrane will oppose to maintain a constant flow rate. That is, the membrane closes when the pressure increases so that the volume of water that enters does not increase, and thus remains the same as the desired flow rate.

This system has many advantages, for example, better control of the water outlet, and the possibility of making much longer lines while maintaining flow uniformity between the first branch and the last.

In terrains that have many unevenness, self-compensating drippers are very necessary since other systems do not respond well to the pressure exerted by the water on them, and there may be very pronounced imbalances. Of course, the price of the self-compensating dripper is higher than that of the turbulent dripper.

On the other hand, it must be kept in mind that these drippers work correctly within certain parameters that will depend on each manufacturer, and that it is necessary to study before purchasing a specific model.

turbulent drippers It works by varying the liters per minute of the flow depending on the pressure it is exerting. This implies that it is not suitable when there are large levels or slopes, since in such cases, the last dripper in the line will not receive the same flow of water as the first.

 

Turbulent drippers are cheaper than self-compensating ones as they do not have such a sophisticated system to manage water pressure. That is why they are perfect for rectilinear terrain and with few slopes looking at the economic side. In case of finding ourselves in a terrain with many slopes, the self-compensating dripper, although it is a little more expensive, is a mandatory choice.

Remember that, for the choice of one type or another, it is necessary to take into account some aspects that, if we are not very expert, we will tend to overlook. Do not hesitate to seek professional advice, which, in any case, is completely free. How can we help you?

Count on MUNDORIEGO for the best products, and you can buy from the comfort of your home without worries, these are some of the products: multi-jet meters, osmosis, Swimmingpool y irrigation materialsIf you are looking for more visit us in MUNDORIEGO.

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67 responses to "Differences between self-compensating and turbulent drippers"

  1. I have an agricultural farm, the water is from a well so it does not come out very clear
    My question is to know if there are special drippers for turbid water, or hose with drippers.

    • Good afternoon,
      There are drippers that have a greater capacity before clogging, as they have a larger labyrinth surface.
      Mainly the self-compensating drippers tend to work better before the clogging.
      Netafim's PC model is the most advanced.

      https://mundoriego.es/comprar/goteros/gotero-autocompensante/gotero-pc-netafim/

      Likewise, if the water is dirty as it is from a well, what is recommended is a price filter for the pipe with drippers.
      With a good 130 micron filter, it will help the water reach the drippers in better condition.
      To choose your filter, you must know the flow of water that passes through the filter, and thus know which model is suitable for your needs.
      Here is a list of our website:

      https://mundoriego.es/comprar/filtros-manometros-ventosas/filtros-manuales/

      Any questions or queries, contact us.

      Sincerely,
      The Mundoriego team.

  2. Up to what level difference between the first and the last dripper can a self-compensating dripper support

    • Good,
      According to the technical specifications of the manufacturers, some indicate that they support an elevation differential of up to 40m. Even so, we advise you to study the sectors so that they do not have to withstand more than 20m of elevation differential, since it must also be borne in mind that if we make the sectors very large and with very high elevation differences, the lowest dripper will discharge all the water in the network when irrigation is stopped with the consequent problems of suction in the higher drippers as well as excess flow in the lower drippers.

      Sincerely,
      The Mundoriego Team.

    • They are two different systems for drip irrigation through tape.
      The labyrinth dripper is uniform, giving a flow per section, while the tablet is a dripper placed at a distance.
      The labyrinth tape tends to have greater length and stiffness capacity, as the labyrinth runs throughout the pipe.
      The connections and unions are different, and the labyrinth dripper price is usually more expensive under the same irrigation conditions.
      As both have a good performance for seasonal periods, the tablet type is usually used more, as it is cheaper.
      These are basically the differences. Then each manufacturer has their own models within each of these tape drip systems.

    • Irrigation tape with self-compensating dripper is not very frequent, and less in wall thicknesses as low as 6mil or 8mil, which is the usual in irrigation tapes, with a useful life of a few months.
      If you want to use self-compensating drippers, you should already go to the higher thickness pipes, which have a useful life of years.
      This pipe would no longer be called an irrigation tape, but rather a pipe, where it can be purchased with integrated self-compensating drippers or to be punctured.

  3. I have an irrigation network with external self-compensating drippers. Irrigation is automatic with a speed variator that supplies me with 40 m3 per hour measured at the outlet of the well at 3,5 b. I have 20% clogged and I don't know how clean drippers behave. Do they homogeneously assume more flow? In other words: a self-compensating network means that its drippers distribute the water that enters the network in a homogeneous way (providing more or less flow each one but all in a similar way) or that each one of them always supplies the same flow that it indicates. the provider?

    • Hello and thanks for your comment.
      No, if you have self-compensating drippers installed, it means that if the dripper is 4l / h it will emit 4l / h, regardless of whether the network pressure is 0.8atm or 4atm. This always depending on the brand and the range of self-compensation. This means that the self-compensating drippers regulate the pressure to always emit the factory flow.
      We hope it has been helpful.
      A greeting.

  4. Good afternoon: I am a novice in these conflicts and I usually trust my neighbors or what I read on the internet. I have a garden on terraces and I want to apply a drip irrigation but I have almost always failed in the attempt. I have a zero pressure programmer since it comes out of a thousand-liter tank at not much height and I want to put self-compensating drippers that seem that at this pressure they do not work. Possibly there are. They tell me what type of cattery I should put on. Thank you

    • Good morning,

      We are sorry that we cannot help you, in our experience there are no self-compensating drippers that work without pressure, the ones we have are self-compensating from 0.4-0.5bar, so the water level in the tank must be at a minimum height difference of 5m .AC

      Sincerely,
      The Mundoriego team.

  5. I have a land with a main hose of 400 meters. 72 lines of 100 meters come out of that hose, every 6 meters I have a tree with an inserted dripper, which is the dripper that I should place, the pump is 5.5 HP which gives a maximum of 1100 liters per minute. Greetings !!!.

    • Good afternoon,
      To advise you we need more information:
      Length, diameter, and height difference of the main pipe. Delivery pump model...

      Sincerely,
      The Mundoriego team.

    • It depends on the manufacturer of the dropper. Usually they start to work between 0.5 and 0.7 bar, but it is not the adequate working pressure, it is the minimum, and working at that pressure it can become clogged in a short space of time. The recommended working pressure is from 1 bar to 4 bars, which are the values ​​that usually appear in the graphics of its technical sheets.

  6. Good morning,
    are there self-powered drippers of more than 8 liters / hour?
    I have a photovoltaic installation and I am interested in irrigation being the shorter the better (They are avocados and it needs a lot of water.
    Thanks, greetings

  7. Good morning, I would like to know the price of the self-compensating drippers and the max and min pressures at which they work, thank you

  8. Thank you very much in advance I have the problem that the pressure is only 1.5 m high and when I put the ring filter no water comes out because it does not let through.

    • A pressure of 1.50m in height is equivalent to 0.15 bar.
      There is hardly any water coming out since the pressure is very low and it tends to get dirty in a short time and clog.
      If later you want to install a drip irrigation installation, you will need much higher inlet pressure (1.5 bar to 2 bar minimum), which is equivalent to 15 - 20m in height, to filter properly and thus the pressure when leaving the filter is sufficient. for a drip irrigation system.

  9. Good morning, could self-compensating drippers with different maximum flow rates 4l / h-8l / h be put in the same line depending on the needs of the plant? Thank you

    • Yes, self-compensating no problem. When the pipe is loaded, and as long as all the flow per hour can be supplied in that line and with adequate pressure, each dripper will emit the flow that it has in operation.

    • If, in addition to being self-compensating, they are AS anti-suction, they can be buried. The depth with which the dripper pipe is usually installed to bury is usually 10-20cm, but there is no maximum depth in the technical data sheet of these drippers to bury.

  10. Hello, good afternoon, I am new to this matter and I have a problem, my garden is located about 30 meters from the well intake with a pressure of 1,9 bars and a drip irrigation with turbulent drippers is installed, there are 8 lines of 4 meters and the last droppers do not pour water on me what would be the problem and how would I fix it thank you very much

    • If the drippers are turbulent, the inclination of the terrain can influence that the drippers do not come out uniformly in all their lines. Another possible case is that the diameter of the main pipe does not have the adequate dimension to cover the irrigation of all the lines at the same time. I can't think of another explanation if that pressure of 1.9 bar reaches the drippers and with such short lines.

  11. Hi, thanks for the help. I put 4-meter lines on 4mm tubing and the general one is 16mm. I'll change the drippers to see if it's fixed. I also forgot to comment that the lines are a bit downhill. Thank you very much for your help. Regards

    • If it has an inclination, it is totally advisable to put a self-compensating dripper, since the turbulent one does not regulate the flow with a slope, and this causes the drippers not to have the same output flow.

  12. Good morning, I have installed 6 self-compensating drippers in a 50 meter long line, with a 16 mm pipe. and a tank of 1000 l. I have no problem with the water coming out, but I do notice that the flow comes out differently in each dropper and it is very difficult to regulate. Some of the water comes out very high.
    Thanks in advance

    • For the use of self-compensating drippers, it is necessary to know the pressure at which they work, since they need a higher pressure than the conventional dripper, due to the membrane that regulates its flow. For this reason, if the drippers do not have enough pressure, they do not water equally.

  13. Hello. I want to set up the drip irrigation system on a new farm that is a bit uneven, since the terraces have been made according to the border with the neighbor above. The first terrace has a bit of a slope and the following ones, downwards, have come flatter, in addition the path that joins them has a quite steep slope. Some are very long and others are very short, but since I will put the general pipe of 75 in diameter through the middle of the farm, at the end the halves come out with similar measures. My question is whether to use the same type of dripper throughout the farm or to put self-compensating on the uneven and turbulent levels on the flatter terraces. The branches have 0.20 mm rubber. Thank you.

    • Good,
      The drippers that you must use are self-compensating in all plots, self-compensating and turbulent systems should not be mixed.

      Any questions please contact us.

      Sincerely,
      THE Mundoriego team.

  14. Good afternoon, I have a drip irrigation system installed with self-compensated drippers with 3.8 l/h tablets, 70 m lines, the query is; that the first dropper emits in the form of a continuous jet and the end dropper emits in drops
    In other words, the lowest inlet pressure flow to the system is 0.5 bar, what would be the problem? (Emission in the form of a jet In the first drippers) thank you

    • It can be due to many variables. Self-compensating drippers work with a higher pressure than a common turbulent dripper, since they have a membrane for flow regulation. Depending on the model and manufacturer, they can start to open at 0.5 bar, 0.7 bar and even 1 bar. This pressure is what must reach the dropper. If the pressure is taken beforehand, there is a pressure drop in the path that reduces the pressure when it reaches the dripper.
      Another variable may be that the branch of the pipe is too long and is not capable of carrying that flow in a 16mm pipe. For this, you must see the manufacturer's technical data sheet, where it indicates the maximum branch length depending on the working pressure, dripper flow and distance between them.
      But apparently his problem seems more related to the lack of pressure.

  15. Hello
    I live in Cuba and I want to install a drip system in a 2.5 hectare banana plantation.
    The land has slight slopes in its 160 meters long.
    I want to install about 25 pipes with self-compensating emitters along those 160 meters.
    Is that possible???? Which ones do you recommend? Also please suggest me the required water pump. I use a deep well of clean water. Said well is located about 60 to 150 meters from the plantation depending on the area where the line that distributes the hoses with the drippers is located. It's that we can't fit 2.5 Ha of bananas with all the hoses required per banana race. It is very expensive and we thought about moving those 25 hoses with their drippers to other banana races.
    I need suggestions.
    Thank you.

    • Good afternoon,

      We recommend that you be advised by a local technician who knows the crop, the land where it is planted, and its optimal way for drip irrigation. In Spain this drip crop is very rare, and we would not know how to advise you in the correct way.

  16. With a flow rate of 4500l.H, a plantation of 110 trees 6 meters away would like to put two rubber bands, one on each side, how do you advise me to put the drippers?, and what flow rate does the drip?

    • Good,
      From what he says, it has an endowment of 4500l / h so it has 40.9l / tree, if you want to put two lines and they are at 6m, we advise you to put drippers every 1m of 2.5l / h or 3 l / h, depending on what sandy soil, the more sandy the drippers must be of more flow so that the wet bulb expands and does not go too deep.

      We hope we have helped you,
      Sincerely, The Mundoriego team.

  17. Hello, good, I would like to know what is the ideal average of the nextafim 8-liter offsets for avocados from one to another?

    • Good,
      We cannot give you an average since each farmer decides on a different measure that influences the type of soil and the distance between trees. If you tell us more data maybe we could tell you an approximate average.

      Sincerely,
      The Mundoriego team.

  18. It would be for avocados that are 5x5 in I want with a rubber on top they are 5 years old and compensate 6 of 8 liters but the average is hojo and I would like to know an approximately suitable average thanks

  19. very good morning first of all a greeting and a huge thank you to these people who make up the mundoriego and who dedicate their time to us both by messages (theory) and in their local workplace (practice), friends I'm a taxi driver in Venezuela and that's why I'm bankrupt for x reasons, I decided with my family to get hands on the land we have, I am totally new to this issue of land to plant, I have a small plot of land 70 meters in front with a side slope of 20% and 108 meters towards the bottom, that is, towards behind with a slope of between 40% and 60%, up at the entrance where the land begins I plan to place the 5.000 thousand liter tank to be able to throw down the irrigation tapes or hoses to be able to supply water to everything that I am going to plant , what irrigation system do you recommend for the description of the land that I am providing, eye the neighbors tell me and that the drip system does not work here because the water does not come out, I leave it in your hands, in advance thank you and that in the name of Jesus I ask God to give me health, protection and life, I await his valuable and prompt response.

    • Good morning!
      We have to take into account several things to achieve efficient irrigation:
      - In the first place, it is not possible to irrigate with the pressure generated by the height of a tank above the ground, so you should consider installing a motor to provide pressure to the plots that are close to the tank, the plots that have a elevation difference between the tank and the ground of more than 30m.ca, pressure reducing valves must be installed.
      - Secondly, it would be a query, does the farm have a terraced area? I ask because it is not possible to irrigate plots with such large differences in height, drippers, even if they are of the self-compensating type, are not suitable for slopes greater than 10%, so if not The plot is terraced. Not on plots with slopes lower than those indicated. We do not recommend the installation of a drip system.
      - Another query, when it tells us that the lateral slope is 20% in 70m, it means that the elevation difference in this direction is 14m, I ask because there seems to be a lot of difference in 70m length, as in the 108 the difference that it indicates is 108m with 60%, this supposes 65m of elevation difference, with these slopes it is impossible for the plantations to be homogeneous those that are in lower elevations will receive more water.
      If you can clarify these doubts and you can send us the location of the plot, we can give you more indications.

      Sincerely,
      The Mundoriego team.

  20. Hello good morning, my query is as follows:
    I have a 2600 liter tank at a height of 2 meters, which do you recommend red (adjustable) or blue (self-compensating) drippers for a field 21m wide and 80m long and a distance of 50cm from plants.

    • Good,
      It is not recommended to use any dripper if it does not have a water column greater than 7m, therefore we cannot recommend any dripper model, none will work optimally.

      Sincerely,
      The Mundoriego team.

  21. Good
    I wanted to ask what if the self-compensating and draining drippers can be cleaned when they become clogged with dirt?
    Thanks in advance
    All the best

    • Good,
      In the first place, the cause of the obstruction would have to be defined so that the treatment is the most effective.
      If it is due to lime, you can use an acid for agricultural use to remove it with irrigation water. If it is due to organic matter, it can also be removed with acids for agricultural use, but if it is another component, you should ask agrochemical companies.

      Sincerely,
      The Mundoriego team.

  22. Hello, I had a question about the PC and PCJ Netafim drippers, what is the difference between them, apart from the size, do they have different features or qualities? And another question is whether these drippers can be left buried about 5 or 10 cm with the outlet microtube out of the ground, with the idea that the rabbits do not cut the microtube before the dripper
    Thanks, greetings

    • These drippers cannot be buried, since they do not have an anti-suction system. This system has pipes with an integrated dripper, but not punctured like these drippers.
      Regarding the difference between PC and PCJ, the size implies that they have different filtration surfaces. This makes the PC drippers, the large ones, suitable for agricultural use with fertigation and dosage, complicated waters and greater durability. PCJ drippers are suitable for hydroponics, greenhouses or pots/planters. Depending on the use, one is more recommended than the other, but both seen from the surface.

  23. hello, I have a garden with thuja hedges, a couple of bismark palm trees and a Japanese maple. I am going to do drip irrigation with 3 independent zones made with a programmer. I'm looking on the page but there are many kinds of hose. Could you advise me what type of hose and what type of drippers should I buy? I have no pressure problems.

    thank you very much

    • If the distance to cover is not very long (100m) we recommend this automation kit from our website: "Garden faucet automated irrigation kit" and 16mm pipe to puncture drippers, always self-compensating drippers.
      For the flow rate and the distance that you should put between them, you would have to ask the nursery where you bought the plant, or find out about the flow of water that your crop needs and the distance to the trunk of the drippers.

  24. of the pipe that you have, which one do you recommend? because there are so many types of 16mm tubing and I get a bit lost.

    thank you

    • It all depends on the maximum branch length of the pipe, whether the terrain has a slope, the available water flow... you should see the tables in the manufacturer's technical data sheets and in that information it indicates the minimum characteristics. If you have questions, you can contact us by phone or email, which you can see in the Mundoriego CONTACT area. In summary, if you use a turbulent dripper pipe, it must be on flat land and no more than 40-50m in maximum branch length. If it does not comply, pipe with self-compensating dripper.

  25. Good morning,
    irrigation with well water with a concentration of 2000ug/liter of iron with self-compensating drippers of 2 l/h. They get clogged very easily and I have to change them every season, there is a dripper that is better to prevent them from clogging so easily with the iron.
    Thank you

    • Good afternoon,

      We cannot provide you with any solution to your problem, since iron is solubilized in water. The only advice we can give you is that water with a high iron content causes the drippers to clog more quickly when the dripper has a low flow rate and speed is low.

      Greetings.

  26. Hello, I have 30 meters planted with dwarf apple trees and I would like to replace the current hose but I don't know which one. I have seen the self-compensating ones but the water intake comes from a tap, would it have enough pressure? and the terrain is completely flat. What hose characteristics would you recommend?
    Are there self-compensating and self-cleaning hoses? Thank you

    • To choose the pipe you must take into account the flow of irrigation water with which you work.
      If you want it with an integrated dripper, you need to know the separation between the drippers and their flow.
      For the system to work properly, it must have a minimum of 1 bar of pressure throughout the pipe.
      You would have to check that the tap water comes out at a pressure greater than 1 bar.
      Hoses with self-compensating drippers are not self-cleaning, what can be self-cleaning is the filter prior to the drippers.

      If you have any other questions you can contact us at our email info@mundoriego.es.

      Sincerely, the Mundoriego team.

  27. Thank you for your answers. You had a doubt.

    In your experience, how relevant is the flow rate for clogging PC drippers in 16mm pipes? For example, the clogging is much greater in 2l/h drippers than in 4l/h drippers, or you think that the increase is not significant. Any reference that has studied this matter?

    • In a 4 l/h dripper, lime precipitation is less frequent compared to a 2 l/h dripper because the water circulates at a higher speed through the interior of the dripper.
      From experience and explained above, a 4 l/h dripper clogs less than a 2 l/h dripper, although there are no significant differences.
      At this time we do not have any studies carried out on this query.

      Sincerely, the Mundoriego team.

  28. Hello, I would like to install self-compensating drippers on a terraced plot. To define the different irrigation sectors, what would be the maximum difference in height between drippers in the same sector?

    Thank you very much

    • This information can be found in the technical sheet of the dripper you want to install, since it may vary for each manufacturer.
      For example, if you install Netafim self-compensating PC drippers, the dripper compensates between 5 and 40 m (0.5-4 bar) in height with respect to the height of the water outlet.
      From experience, we advise you not to work at the limit of 40 m (4 bar), but rather to compensate for a height difference of approximately half, 20 m (2 bar) in this case.

      Sincerely, the Mundoriego team.

  29. Good morning, I have a plot of land with a length of 150 meters and another plot of land with a length of 200 meters, and in both I am going to put 25 dripper lines. I wanted to know if I can put a complete dripper line in each of the two plots. or if I would have to put two lines, in other words, I wanted to ask if the 50 pipe that is going to supply the dripper lines has to go at the head or in the center so that there is only one section of dripper pipe or two sections with 50 pipe in the middle
    To irrigate I have a pump that supplies 60.000 liters per hour and another that supplies 30.000 liters per hour. I don't know if the 30.000 pump would work or if I should use the 60.000 pump.

    • Good,
      In order to advise you we need to know the planting frame, number of drippers and their flow rate.
      In any case, a 200 meter drip line is excessive.

      Sincerely, the Mundoriego team.

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