Disc filter with automatic flushing main buyer country

When you hear aboutdisc filters with automatic flushing, the first thing that comes to mind is European brands like Azud or Amiad. But over the past five years, I have observed a clear trend: 70% of requests from Russian agricultural enterprises go to China. And here there is a nuance - they buy not just “Chinese” products, but technological solutions from full-cycle companies, where design and adaptation to our conditions come from the factory.

Understanding the pitfalls of automatic flushing

Autowash is not just a timer and relay. In our conditions, with hard water and sand, wells often have problems: the electronics work, but the disks stick together so that the return line cannot cope. Once in the Rostov region they installed a system with a differential pressure sensor - it seemed ideal. But at -25°C the plastic valves cracked within a week. I had to redo it with brass components.

Speaking of temperature, many people forget thatdisc filtersin greenhouses and in open fields they work in completely different conditions. For vegetable growing plants like 'Belaya Dacha' we always add heating to the control unit, otherwise April frosts damage the entire drip irrigation line.

The peculiarity of Russian buyers is that they require a margin of safety 'with a margin'. If according to the passport the filter is rated at 100 m3/h, we will load it at 110-115. Therefore, in projects for the Krasnodar Territory, we always put filters a step above the nominal value. More expensive? Yes. But when cleaning and watering take place at the same time, line stops are more expensive.

Why Shandong Lingyao gained a foothold in the Russian Federation

CShandong Linyao Intelligent Agriculture Technology Co.,Ltdencountered in 2021, when they were looking for a replacement for Italian systems for vineyards in Crimea. On their website https://www.lyzhihuinongye.ru, at first I was confused by the abundance of services - from filters to designing entire parks. But it turned out that this is a plus: when they deliverdisc filters with automatic flushing, immediately offer compatible valves and controllers. There is no need to connect equipment from three manufacturers.

I remember the incident with the calibration of sensors - when launching the system in the Stavropol region, it turned out that the Modbus protocol was not entirely standard. Engineers from China remotely reflashed the units within 24 hours, although according to the contract this was our area of ​​responsibility. After that, they began to be recommended for complex objects.

Now I see their filters in smart greenhouse projects - where integration with a fertigation system is needed. I won’t say that they don’t have any flaws: for example, the lid fastenings on early models were unreliable, and leaks appeared due to vibrations from the pumps. But in new batches I already see a reinforced lock.

Features of installation in Russian farms

The most common mistake is installing a filter without a bypass. It would seem elementary, but in a hurry, installers save three ball valves. Then, when cleaning or repairing, you have to stop the entire system. This is especially critical in poultry farms, where feed fields are watered according to schedule to the hour.

Another nuance is in the instructions fordisc filters with automatic washingThey write about washing every 2-4 hours. But when working with drainage water in the Rostov region, the interval has to be reduced to 40-60 minutes. At the same time, the return water consumption increases - up to 8-10% versus the standard 5%. It is important to factor this into the calculation of capacities.

For large objects like Miratorg, we generally go a different route - we install a cascade of 3-4 filters with sequential washing. Yes, it’s 30% more expensive, but there are no pressure drops in the line. By the way, this scheme was first tested with Shandong Lingyao equipment - their controllers allow you to program complex cycles without additions.

What has changed after 2022

Before the sanctions, many agricultural holdings bought European equipment 'for prestige'. Now they look exclusively at functionality and service. Chinese manufacturers are taking advantage of this - they have opened warehouses in Novorossiysk, are translating documentation into Russian, and are conducting webinars for mechanics.

Shandong Lingyao, for example, now has Russian-speaking managers who understand the difference between “fielding sunflower fields” and “starting irrigation for a vineyard.” Trifle? No - when you discuss a project, you save 40% of the time on approvals.

The price issue has become more interesting - previously Chinese filters cost 15-20% less than European ones with comparable quality. Now the difference reaches 40-50%, especially for systems with remote control. At the same time, I don’t see any difference in reliability - the same stainless discs, the same backwash principle.

Prospects and bottlenecks

Now the main trend is the integration of filters into a single smart farming system. The samedisc filters with automatic flushingfrom Shandong Lingyao already by default come with an output for connecting to SCADA systems. But there is a problem - Russian software solutions do not fit well with Chinese protocols. I have to write crutches.

Spare parts are a different story. Although the official warranty is 3 years, delivery of seals or pressure sensors from China takes 25-30 days. It is necessary to create local warehouses for consumables, but this will increase the cost of logistics by 7-12%.

I see potential in adapting filters for the northern regions - in Tatarstan and Bashkiria there is already a demand for systems for year-round greenhouses. It is necessary to heat not only the control unit, but also the disks themselves - at subzero temperatures, residual water crystallizes and tears the polymer elements.

Overall marketdisk filterswith autowashing in Russia will grow - import substitution in agricultural machinery is going slower than we would like, and Chinese manufacturers have learned to make really high-quality equipment. The main thing is not to chase cheap no-name solutions, but to work with trusted suppliers like the mentioned company, where there is a full cycle from production to design.