Solenoid valve 3 inch dc24v

When it comes to 3" solenoid valves with 24V DC power, many people immediately think of a simple open/close flow, but in reality there are nuances that are not always obvious even to experienced installers. For example, not everyone takes into account that with such a diameter and constant current, not only the voltage is important, but also the starting current, especially if the valve is located in a long control line - there have been cases when a voltage drop of just 2-3 volts has already led to failure of operation, especially in cold weather. I went through this myself when installing such valves on irrigation systems - at first I was guilty of the quality of the coil, and then it turned out that the wiring was too thin for a distance of 200 meters. This is a common mistake that is often missed in specifications.

Design and installation features

Structurally3" solenoid valvewith DC24V is usually a normally closed option, which is logical for emergency scenarios, but in some systems, for example, in the same greenhouses where we integrated solutions fromShandong Linyao Intelligent Agriculture Technology Co.,Ltd, sometimes a normally open one was required - for example, to ensure minimal watering when the control was turned off. Their team just suggested that their sets of frequency automatic equipment often incorporate just such an approach to avoid drying out of the substrate. By the way, about installation: many people try to install the valve without an additional filter, especially if the water comes from a well, and then they wonder why it sticks after six months. I always insist on installing at least a simple strainer in front of it, even if the system already has basic filtration - this greatly extends the life of the seals.

Another point about the case material: fordc24vdesigns are often offered in brass or stainless steel, but in agricultural projects, especially with fertilizers, stainless steel is preferable - brass can corrode from some types of liquid fertilizers. We once installed valves in the water and fertilizer integration system at one of the Shandong Lingyao projects - there were initially brass valves, but after analyzing the water we switched to AISI 304, and the problems with sticking disappeared. By the way, their engineers then noted that for3 inchesdiameter, it is important to take into account not only the pressure, but also the flow speed - if it exceeds 3 m/s, then even a high-quality valve begins to make noise and wears out faster.

By connection: fromdc24vmany people forget about polarity - yes, some models work even with reversed wires, but not all, and if you make a mistake, you can burn the diode in the control circuit. I always mark the wires during installation, even if it seems that it is already clear - especially when working in poor lighting conditions, for example, in pumping stations. And yes, grounding - it is often ignored for low-voltage systems, but for solenoid valves it is critical, especially if power cables run nearby - interference can cause false alarms.

Practical cases and problems

One of the most significant cases was on the smart agricultural park project, where we used valves withdc24vpower supply - there the control system was distributed, with controllers in different zones. Initially, the valves were installed without protection against water hammer - when they were suddenly closed, pressure surges occurred on long pipelines, which damaged not only the valves themselves, but also the sensors. I had to add dampers - this increased the cost, but it failed by almost a third. By the way, in the catalogsShandong Linyao Intelligent Agriculture Technology Co.,LtdNowadays, many models immediately come with a soft-closing option, but previously this was rare.

Another problem is compatibility with older systems. Somehow we had to integrate new3" solenoid valvesinto the existing control circuit, where relay equipment was used - and there was serious interference from sparking contacts. We decided to install RC circuits parallel to the coils, but this required additional calculations - not all installers know how to do this correctly without risk to the controller. By the way, their remote valve control kits usually already take such nuances into account, but when you work with third-party components, you have to check everything yourself.

Temperature conditions are a separate issue.DC24Vthe valves usually work normally down to -20°C, but in one of our regions the temperature dropped lower and the valves stopped working - not because of the electronics, but because of condensate freezing in the tubes. We had to install heating - not the most elegant solution, but effective. By the way, for such cases Shandong Lingyao has versions with coil heating, but they are more expensive and require separate power - not always economically justified for large systems.

Integration into complex systems

When we talk aboutsolenoid valve 3 inch dc24vIn the context of smart agriculture, it is important to consider not only its parameters, but also how it fits into the overall scheme. For example, in high quality agricultural field projects whereShandong Linyao Intelligent Agriculture Technology Co.,Ltdimplements the full cycle - from design to construction, such valves often become part of zonal control. But there is a subtlety here: if the valve is on the main line, and the control comes from a frequency converter, you need to coordinate not only the voltages, but also the protocols - sometimes it’s easier to install an intermediate relay than to redo the entire circuit.

Another point is reservations. In critical systems, for example, in greenhouses with expensive crops, we always install two valves in parallel - one main, the second in case of failure. But for3 inchesdiameter, this doubles the cost and space taken up, so customers do not always agree. Although practice shows that during the season at least one valve in a hundred fails - and if this happens during the peak of the growing season, the losses can be significant. By the way, in their projects of hydraulic structures they usually use a redundant scheme - apparently, experience takes its toll.

Communication with sensors - modern systems require not just opening/closing, but doing so according to certain algorithms. For example, when integrated with soil moisture sensorssolenoid valve dc24vmust process commands quickly - but this does not always work if the controller is far away. In such cases, we use local control units with independent logic - this is more expensive, but more reliable. By the way, the water and fertilizer integration equipment from Shandong Lingyao already has such an architecture - the valves are controlled not directly from the central computer, but through zonal controllers.

Operation and Maintenance

In terms of durability3" solenoid valvewith a 24V DC power supply - a fairly reliable thing if it is correctly selected for the conditions. But many people forget about prevention - for example, once a season you need to check the condition of the seals, especially if there is sand in the water. I once saw a system where the valves worked for five years without maintenance - in the end almost everything had to be changed, because due to wear on the seat they stopped holding pressure. Although the coils themselvesdc24vwere still alive - they could have been left behind.

Another common problem is improper storage of spare valves. They are often stored in unheated rooms, and then they wonder why the new valve does not work - but condensation just formed in it, which froze and ruptured the membrane. I now always recommend storing spare parts in the same conditions where they will be used - this seems obvious, but in practice is often ignored. By the way, this point is always spelled out in the documentation for equipment from Shandong Lingyao, but not everyone reads the technical data sheets to the end.

Regarding repairs - many people try to repair valves themselves, especially during the season when there is no time to wait for a replacement. But withsolenoid valves on dc24vthis is not always justified - if the problem is in the coil, it can be replaced, and if the seat or plunger is worn out, it is easier to install a new one. I usually have a small stock of the most popular models at my sites - this comes out cheaper than a simple system for several days. By the way, their support team usually responds quickly to requests for spare parts - this is important when you work in remote areas.

Prospects and development

Now they appear3" solenoid valveswith improved characteristics - for example, with reduced energy consumption, which is important for solar-powered systems. But not all new products should be implemented immediately - we once tried valves with “smart” technology. coil, which supposedly diagnoses faults itself, but in practice this added complexity to diagnostics - it’s easier to have a separate monitoring system. Although for large projects such as smart agricultural parks that are being builtShandong Linyao Intelligent Agriculture Technology Co.,Ltd, perhaps this makes sense - the scale is different there.

Another trend is the transition to more unified management protocols. Many manufacturers, including Shandong Lingyao, now offer Modbus RTU-enabled valves even fordc24vmodels - this is convenient for integration, but requires qualified programmers. Previously, we often encountered a situation where there were no specialists on site capable of setting up such systems - we had to train local staff or constantly travel for commissioning.

Overall,solenoid valve 3 inch dc24vis not just a component, but an element of the system that needs to be considered as a whole. Experience shows that most problems arise not from the quality of the valve itself, but from errors in design or installation. And here it is important to cooperate with companies that understand not only the technical characteristics, but also the application features - like Shandong Lingyao, where the approach from design to construction allows you to avoid many typical mistakes. Although this is not a panacea, there are always nuances that have to be resolved on the spot, based on specific conditions and resources.