Solenoid valve 3 inch dc24v main buyer country

When I see a request aboutsolenoid valve 3 inch DC24V, I immediately remember how beginners make mistakes with the selection - they chase cheapness, forgetting about the real operating conditions. In Russia, the pressure in the systems often fluctuates, and frosts down to -30°C require a special approach to materials.

Why exactly 3 inches and 24V?

Three-inch valves are not just an intermediate size between 2' and 4'. In irrigation systems for large greenhouse farms, this diameter is optimal in terms of throughput without unnecessary hydraulic losses. I remember that in the Moscow region they redesigned the system - they installed two inch ones instead of one three-inch one, they got double the flow rate in the connecting sections.

By voltage:DC24Vin agriculture, 220V is more reliable. There are fewer risks with high humidity, and it’s easier for automation - you can directly connect backup batteries. But there is a catch - not all manufacturers take into account the inrush currents of the coil at -20°C.

By the way,Shandong Linyao Intelligent Agriculture Technology Co.,Ltdin smart park projects they use just such a specification - I saw their diagrams on lyzhihuinongye.ru, they correctly combine valves with frequency converters.

Features of installation in Russian conditions

Polypropylene housing is a common mistake. For the Urals or Siberia, brass with an anti-corrosion coating is better. Once they installed polypropylene in Tyumen - after a season it cracked at the junction with the thread, and the entire branch had to be replaced.

Be sure to check the protection class - for outdoors you need IP68, otherwise condensation inside will kill the coil in six months. Checked the valves fromShandong Lingyao Co.,Ltd– their passport honestly states tests at -35°C, this is important.

Another nuance is the direction of flow. Some people think that this is not critical for solenoid valves, but when reinstalled, the pressure drops by 15-20%. In their projects, high-quality fields are always marked with arrows.

What to combine with in an automation system

Singlesolenoid valve 3 inch DC24Vwithout a controller - money down the drain. I have seen cases when they connected directly to a time relay - the coil burned out due to voltage surges.

It is better to take it as a kit with a programmer - for example, as in the systems for integrating water and fertilizers from Chinese partners. They have cascade connection diagrams via GSM modules on their website lyzhihuinongye.ru.

For filtration, it is important to install the valve after the strainers - solid particles get stuck in the seat and cannot be repaired. In Crimea, they once cleaned the system - they took gravel out of one valve.

Typical breakdowns and how to avoid them

The main problem is the coil burning out when turned on frequently. For pumping stations I recommend installing a soft start - I was convinced of it myself at the sitesShandong Lingyao Co.,Ltdin the Rostov region, where valves have been operating since 2019 without replacement.

Another point is the wear of the seals. When using fertilizers, Teflon is better than EPDM. Although the latter are cheaper, they become tanned after nitrogen fertilizing.

Winter drainage is trivial, but half of the accidents are caused by this. Smart parks install automatic dischargers, but for simple fields, staff need to be trained.

About logistics and replacements

There is a difficulty with three-inch valves - not all manufacturers keep them in stock in the Russian Federation. You have to wait 2-3 months if you order for a project.

UShandong Linyao Intelligent Agriculture Technology Co.,LtdThere is a warehouse in the Moscow region, but from experience, it is better to check in advance for the availability of specific modifications. Especially with a manual override - these are often required by our safety standards.

As a temporary solution, you can install electric valves, but this is more expensive and less accurate for drip irrigation. I checked it last year in Tatarstan - the difference in consumption is up to 23%.

What to choose in the end

For most farms, I take valves with a brass body, a waterproof coil and spare seals. Diameter 3 inches is a universal option for trunk lines.

As for brands, I look at those who give real guarantees for work at subzero temperatures. The same Chinese manufacturers likeShandong Lingyao Co.,LtdThey are now making good samples adapted to our climate.

The main thing is not to skimp on small things. A cheap valve can ruin your entire irrigation system, and repairs will cost more than the initial savings. Tested in practice - in the Krasnodar Territory, after such an incident, 12 hectares of drip tape had to be replaced.