Solenoid valve 1.5" pulse

This type of valve constantly causes controversy at sites - some say that a simple electromagnetic valve is sufficient for drip irrigation, others insist on a pulse valve. From my own experience I will say: the difference is not in price, but in how the system behaves after six months of working with hard water.

Why 1.5 inches is not a random size

When did you first ordersolenoid valve 1.5" pulsefor a project in the Krasnodar region, we had to recalculate everything - from peak costs to the length of highways. It turned out that in areas larger than 5 hectares, it is this diameter that gives the optimal pressure without constant surges.

I remember the case with a greenhouse complex near Voronezh, where valves were installed at 2 inches - problems with reverse water hammer began there. I had to urgently change to one and a half inch ones, but with modifications to the pulse module.

Now, when selecting, I always check not only passport data, but also real tests - for example, how he behavessolenoid valvewhen working with fertilizers. For some models, the coil literally corrodes within a season.

Impulse versus regular: hidden nuances

Many people still confuse the principle of operation - the pulse one does not just open/close, but fixes the position of the plunger without constant voltage. This is critical for remote sites where there are power outages.

Last year, at the project of Shandong Linyao Intelligent Agriculture Technology LLC, this feature was used - theirimpulse valveworked in tandem with solar panels. Savings on cables amounted to about 40%.

But there are also pitfalls - for example, some cheap models can 'stick' in intermediate positions. You have to install an additional control sensor - this is about 15% of the cost, but without it you risk getting the root zone over-watered.

Field tests and typical installation errors

There are good strapping diagrams on the website https://www.lyzhihuinongye.ru, but in life everything is more complicated. For example, I never putsolenoid valve 1.5 inchwithout a dirt trap - even with fine filters, sand particles clog the channel within 2-3 months.

It is especially problematic when installers ignore the slope - in one of the farms in the Rostov region, 8 valves failed during the season because of this. Moreover, the warranty case was not recognized - incorrect installation.

Now I always require a test run with simulating emergency shutdowns. If the valve fires clearly after 10 cycles, the work can be accepted.

Compatibility with automation systems

For smart farming projects such as those implemented by Shandong Linyao LLC, not only mechanics are important, but also data exchange protocols. Their latest developments just useimpulse valvewith the possibility of pressure correction.

Integration with SCADA systems sometimes reveals oddities - for example, some controllers do not have time to process fast impulses. You have to set the delays manually, although this is not in the documentation.

Working in cold weather is a different story. Standard insulation often does not help; you have to supplement it with a heating cable. But this is a topic for another discussion.

Economics vs reliability: what do practitioners choose?

Price of qualitysolenoid valve 1.5 inch pulsestarts from 120 euros, but some try to save money by buying analogues for 60-70. The difference does not appear immediately - at first they work the same, but by the end of the second season the cheap ones begin to 'cry' through the seals.

There are also hidden costs in installation - for example, for reliable operation you need a voltage stabilizer, and this is another 25-30% of the budget. But without it, the coil life is reduced by three times.

Now I recommend considering valves as a long-term investment - it’s better to overpay at the start than to replace 30% of the fleet every year. Especially considering the rising prices for logistics.

Prospects and limitations of technology

Modernimpulse valvesThey have already learned to diagnose themselves - they transmit data about plunger wear and seat condition. But in Russia this is still exotic - most farms prefer simple solutions.

It is interesting that in the projects of Shandong Linyao Intelligent Agriculture Technology LLC, they have recently begun to combine types of valves - pulse valves are installed on the main line, and ordinary electromagnetic valves are installed on the branches. Quite a reasonable compromise.

The main obstacle to mass implementation is not the price, but the lack of qualified installers. We have to conduct educational programs directly at the sites and show with real examples the consequences of incorrect installation.