Solenoid valve 2.5 inch dc24v main buyer country

When I see the request “solenoid valve 2.5 inches DC24V main country of buyer”, I immediately remember how many people make mistakes with the selection of voltage for export. DC24V is not a universal solution, although it is stable for automation. In Shandong Lingyao we went through this: customers from Central Asia often require adaptation to local networks, and 24 volts is a compromise between security and compatibility.

Why 2.5 inches is a non-standard size

In the industry, 2-inch valves are more common, but 2.5 inches (about 65 mm) are already specific. For example, for highways with increased water consumption in greenhouse complexes. I remember a project in Kazakhstan: the customer insisted on 2 inches, but during calculations it turned out that the pressure drops on long lines. I had to go to 2.5 inches, otherwise the drip irrigation would work intermittently.

The key point is the connecting thread. In ourShandong Linyao Intelligent Agriculture Technology Co.,LtdThere have been cases where valves were shipped with NPT tapered threads and customers were expecting metric threads. Now in the specifications on the website https://www.lyzhihuinongye.ru we clearly indicate: 'G65 or NPT 2.5 thread' is a trifle, but we avoid returns.

The material of the case is also important. For the CIS we often use nickel-plated brass - less corrosion with a high salt content in the water. But in one of the orders for Uzbekistan, they saved money and supplied ordinary brass... Six months later, complaints about leaks. I had to change the batch at my own expense.

DC24V: advantages and hidden problems

24V DC is reliable for field conditions. There are fewer risks when insulation is damaged, and it is safer for personnel. But there is a nuance: the length of the cable. At a distance of more than 100 meters from the controller, voltage drops are possible, especially if the wire cross-section is less than 1.5 mm2. In a project for a vegetable farm near Almaty, additional signal amplifiers were installed - without them, the valves sometimes 'stuck'.

Himselfsolenoid valvemust have protection against impulse noise. In rural areas, power surges are common. Previously, they installed simple models, but after a series of failures they switched to versions with built-in varistors. 15-20% more expensive, but reputation is more important.

Interestingly, in countries with hot climates (like Central Asia), the coils overheat faster. It was necessary to develop modifications with insulation class H (up to 180°C) for export. Standard F-class (155°C) failed in 2-3 months in the summer heat.

Geography of buyers: experience and mistakes

The main customers of 2.5-inch valves are agricultural enterprises in Russia, Kazakhstan, and Uzbekistan. But the requirements vary. Russian clients more often request TR CU certification, and in Uzbekistan adaptation to local waters with a high carbonate content is important.

There was a curious case: they delivered a batch to Kyrgyzstan, but did not take into account that they often use diesel generators with an unstable frequency. The valves operated with a delay. The control circuits had to be modified - stabilizers were added.

Now atShandong Lingyao Co.,LtdFor each region we create an 'adaptation package'. For example, for the northern regions of Kazakhstan we add anti-icing heaters, although they are not standard. It's a small thing, but clients appreciate it.

Installation subtleties that are not written about in the instructions

There is eternal confusion with the direction of the flow. There is an arrow on the body, but installers sometimes ignore it. The result is that the valve does not open under pressure. Now we always conduct video instruction in projects. Especially for2.5 inches DC24V— there the loss of productivity is critical.

Another point is the installation position. It is better to install normally closed valves with the solenoid facing up, otherwise sediment will accumulate in the chamber. Last year, 8 out of 20 valves jammed in cotton fields in Tajikistan because of this.

A filter in front of the valve is a must, but it is often forgotten. The minimum mesh is 100 microns, and for hard water - 50. Without this, the resource drops by 2-3 times. We at https://www.lyzhihuinongye.ru even began to include basic supplies with filters - fewer complaints.

Compatibility with automation systems

With our equipment for integrating water and fertilizers, the valves work reliably, but with controllers from other manufacturers there are failures. For example, some European PLCs do not produce pure 24V DC, but a pulse signal - the valve hums and gets hot.

For smart agricultural park projects, we are now testing all combinations. The latest development is valves with a manual override function. Useful during power outages, which in some CIS regions occur 3-4 times a day.

Interestingly, the demand for remote control is growing even in remote areas. We had to integrate GSM modules - the valve can be opened with a simple call. It’s primitive, but for farmers without the Internet it’s a salvation.

Economics of repair vs replacement

Coils most often fail - they are replaced in 10 minutes. But if the core is damaged, a new valve is cheaper. For 2.5-inch models, repairs are rarely justified, unless they are serially defective.

Last quarter there was a batch with a defective seal - the material could not withstand temperature changes. We had to recall 120 pieces, although only 15% were defective. In such casesShandong Linyao Intelligent Agriculture Technology Co.,Ltdacts tough - complete replacement without disputes.

Now I advise clients to buy 10% more valves for reserve. A downtime irrigation system during the season costs more than several replacement units. Especially for crops with a short growing season.