Solenoid valve 3 inch ac24v main buyer country

When I see the request “solenoid valve 3 inches AC24V main country of buyer”, I immediately understand that we are talking about typical problems of import substitution in the agricultural sector. Many people still confuse that for our 220V networks we need AC24V with a transformer, and not the DC version.

Why 3-inch valves have become a headache for farmers

Last season I observed an interesting case in the Rostov region: they purchased a batch of cheap solenoids supposedly meeting our standards, but they failed at the first power surge. It turned out that the coils were designed for 50Hz instead of 60Hz - a trifle, but the consequences amount to hundreds of thousands.

The peculiarity of the 3-inch modifications is that they are often installed on main lines. Hence the pressure requirements: if 0.02-0.2 MPa is enough for drip irrigation, then 0.1-0.8 MPa is already needed here. I always check the spring of the return mechanism - Chinese analogues often save on heat treatment.

I noticed a trend: Russian buyers began to more often demand IP68 protection class, even for enclosed spaces. After the story of the flooding of a pumping station in the Krasnodar Territory, this became a kind of fetish. Although in fact for a normally functioningsolenoid valve 3 inchesIP54 is sufficient if the installation is done correctly.

AC24V power pitfalls

Working with Shandong Linyao Intelligent Agriculture Technology LLC, we had to reconsider the approach to transformers. Their system requires stable 24V (±10%), otherwise the coil overheats after 2-3 hours of continuous operation.

Last month, the valve was tested at a vegetable farm near Voronezh. We encountered a paradox: at nominal AC24V, the equipment worked intermittently. We figured it out - the problem was with the quality of the sine wave. I had to install a stabilizer with an output signal purity of at least 98%.

Now we recommend including a backup power supply in the project. Especially for automated irrigation systems, where3 inch valveacts as a shut-off valve in critical areas. Experience has shown that saving on duplicate nutrition results in crop losses.

Geography of supplies: where to look for reliable solutions

The main flow of requests comes from the southern regions - Crimea, Stavropol, Kuban. But in the last two years, the farms of Central Russia have been actively catching up. I attribute this to the transition to drip irrigation on an industrial scale.

An interesting point: in Tatarstan they prefer valves with a manual override, while in the Rostov region they more often order fully automated versions. Apparently, the difference in the approach to the service personnel affects it.

The website https://www.lyzhihuinongye.ru is now being adapted to regional characteristics. I noticed that they are adding a section with cases specifically on working in Russian networks. Useful, because many technicians still don’t know how to test a coil with a multimeter without dismantling it.

Installation subtleties that are not written about in the instructions

When installing in open areas, be sure to leave an air gap between the housing and the ground. In the winter of 2022, there were several cases of brass housing cracking due to ice plugs - water flowed under the seals and froze.

For systems with fertilizers, I recommend installing an intermediate flush valve. Even high-quality onesAC24V solenoid valvesthe rubber membrane suffers when in direct contact with agrochemicals. The solution is simple - an additional dump in front of the main unit.

It is better to orient the locking mechanism at an angle of 15-20 degrees to the horizontal. This makes maintenance easier and there is less risk of silting. Tested at Shandong Lingyao LLC facilities - their engineers made this recommendation after analyzing failures over the years.

Prospects for development in the Russian market

Now I see a request for integration with systems like 'smart farm'. Buyers don't just want3 inch solenoid valve, and a finished unit with flow and pressure sensors. In response, Shandong Lingyao Intelligent Agriculture Technology Co., Ltd. is developing modular solutions.

An interesting observation: after the introduction of sanctions, many farms switched to Turkish components, but are now returning to trusted suppliers. Experience is telling - European and Chinese manufacturers better take into account the specifics of our energy networks.

Plans for the next season include testing hybrid solutions. I would like to combine the reliability of electromagnetic control with the energy independence of hydraulic systems. The first prototypes already show resistance to voltage surges of up to 30%.

Errors when selecting equipment

The most common is ignoring peak pressure. The valve can operate for years at the standard 0.3 MPa, but one water hammer of 1.2 MPa will damage it. I recommend that you always include a safety margin of 25-30%.

The second point is the material of the case. For most regions of Russia, brass is preferable to stainless steel. It tolerates freeze-thaw cycles better. I checked it at sites in Siberia - brass samples last 2-3 seasons longer.

And most importantly, do not skimp on service valves. Cheap models require complete replacement when the membrane fails, while high-quality ones can only be replaced with worn-out components. This is especially important for large farms, where dozens of pieces of equipment are required.