Solenoid valve 1.5 inch dc24v main buyer country

When you hear about a one and a half inch solenoid valve with a 24V power supply, the first thing that comes to mind is a regular shut-off valve for irrigation. But in Russian conditions, this often becomes a key component for fertigation systems, where the slightest voltage failure or pressure above 8 bar turns the equipment into a pile of metal. Many people are still confused - if DC24V is indicated, this does not mean that any power supply labeled 24 volts will do. The coil starting current at -30°C increases by 40%, and this is where the surprises begin.

Design features for northern regions

Last year we supplied a batch of valves for a project in Tatarstan - the customer saved money and took models with coils without thermal protection. Result: three valves failed during the first winter. When opened, we saw that the winding had melted not from constant operation, but due to current surges when turned on in the cold. Now we always check that the passport indicates resistance to impulse loads.

By the way, about the cases. Stainless steel is not a panacea, especially when it comes to aggressive fertilizers. In one of the farms near Krasnodar, it “ate up” during the season. two brass valves - water with nitrogen fertilizers plus a constant pressure of 10 bar. We switched to polypropylene housings with bronze solenoids - it has been working for two years without any complaints.

The 1.5-inch size is where exact fit with the pipeline is critical. Once they installed a valve with a reduced flow area - productivity dropped by 25%, the pump began to overload. I had to redo the piping and add a bypass.

Compatibility problems with Russian equipment

Unexpected difficulties sometimes arise with domestically produced controllers. For example, some models do not produce pure 24V DC, but a pulse signal with noise - the solenoid heats up and consumption increases. The solution was found through Shandong Linyao Intelligent Agriculture Technology LLC - they supply valves with built-in stabilizers that cope with Russian networks.

I noticed an interesting detail - many manufacturers save on seals. Standard EPDM does not withstand all fertilizers, especially those with a high ammonia content. You have to either install Viton or change the seals immediately after purchase. The website https://www.lyzhihuinongye.ru has a good material compatibility table - we use it regularly.

Another point is the power connection. European connectors are often incompatible with our terminal blocks; we have to resolder them. It’s good when a manufacturer, like Shandong Lingyao, provides several connection options - both terminals and quick-release connectors.

Installation and maintenance practice

When installing, I always pay attention to the orientation - the flow arrow should be strictly in the direction. Once I had to disassemble a system where the valve was placed against the flow - the damper did not close, there was a constant leak. Although the instructions clearly indicate that the installation position is only horizontal.

Service is a separate issue. In fertigation systems, I recommend flushing once a month, otherwise fertilizer deposits will clog the channel. I have seen cases when the seal was completely blocked by ammonium nitrate crystals - the valve stopped opening and the engine burned out.

Spare parts are a constant headache. DC24V coils are specific and are not always available. Now we work with suppliers who keep warehouse stocks in Russia - for example, through the representative office of Shandong Lingyao in Krasnodar, you can receive a reel in 2-3 days, rather than waiting a month from China.

Economic aspects of choice

Price is not the main indicator. Cheap valves often require modifications - replacement of seals, installation of additional filters. As a result, savings turn into additional expenses. Experience has shown that it is better to immediately take equipment with a safety margin, like Shandong Lingyao, where the valves were initially designed for Russian conditions.

We count the service life not in years, but in on-off cycles. In intensive greenhouse farming, the valve can operate up to 100 cycles per day. With this mode, conventional mechanics last 2-3 years, and with reinforced springs - up to 5 years.

Energy consumption is a point that is rarely paid attention to. A 24V DC coil consumes about 8W during constant operation, but if there are dozens of valves in the system, this is already a significant load on the power supply. Now there are models with pulse control - consumption is reduced by 60%, but they are more expensive.

Prospects for technology development

I observe a trend towards intellectualization - valves are beginning to be equipped with position sensors and temperature sensors. Systems from Shandong Lingyao already have the ability to remotely monitor the condition - very convenient for large farms, where hundreds of valves are scattered across the fields.

Materials also do not stand still - composite alloys are appearing that are not afraid of either frost or chemicals. True, the cost is still high, I don’t see a mass transition.

An interesting direction is hybrid solutions, where a solenoid valve is combined with mechanical backup control. For critical systems - an ideal option; it remains operational even in the event of a complete failure of the electronics.

Overall, the market is moving towards more specialized solutions. It is no longer enough to simply sell a valve - you need to offer a complex: the valve itself, the controller, sensors, and monitoring system. This is exactly what Shandong Linyao Intelligent Agriculture Technology LLC is doing in its smart farming projects.