GROW1 Solenoid 24VAC

A 24VAC Solenoid Built for Continuous Irrigation Duty

When a zone stops responding to the controller, the coil on top of the valve is often the part that has failed. This GROW1 unit is that coil: an encapsulated solenoid that lifts the valve plunger when power reaches it and releases it when the signal stops. It runs on 24VAC at 50/60 Hz, the standard output of irrigation controllers and timers. The label rates it at ED100%, meaning it can stay energized for the full length of a long run without a rest period. That matters on fertigation cycles and long drip sets, where a zone may hold open far longer than a lawn station would. Its coil winding carries Class H insulation, and the label lists a maximum ambient temperature of 80°C. The housing is a sealed black body with a red cap at its base, and it carries the CE mark. Two long pink lead wires come off the top with stripped ends, ready to splice at the valve box. The whole unit weighs about 0.28 lb, so spares take up almost no room on the shelf. It suits hydroponic and greenhouse irrigation systems that already run on a 24-volt AC controller.

Swapping an Irrigation Valve Solenoid on a Live Zone

Start by confirming the coil is the problem, because a broken wire or a dead controller station looks the same from the bench. A multimeter across the two leads shows whether the winding still has continuity. If it reads open, shut off the water and the controller before touching the valve. Unscrew the old solenoid by hand, keep any plunger and spring seated in the valve, and thread the replacement on until it is snug. Over-tightening cracks the plastic threads, so hand tight is the right torque. Connect one lead to the station wire and the other to the common, sealing both splices with waterproof connectors. Polarity does not matter on an AC coil, which keeps the job quick in a crowded valve box. Check the thread and plunger fit against your valve body before ordering, since solenoids are not universal across brands. It will not run on 12V DC or latching controllers. Keeping one spare per valve style on hand turns a dead zone into a five-minute repair instead of a missed irrigation.

Key Features

• 24VAC, 50/60 Hz Coil: Runs on standard irrigation controllers and timers on either line frequency.
• ED100% Continuous Duty: Rated to stay energized through long drip sets and fertigation runs.
• Class H Insulation: High-temperature coil insulation with an 80 degree C maximum ambient rating.
• Long Stripped Leads: Two pink lead wires ready for waterproof connectors at the valve box.
• Sealed Black Housing: An encapsulated coil body that stands up to the damp inside a valve box.
• CE Marked: The coil carries the CE mark on its printed label.

Technical Specifications