Can you change a normally closed solenoid valve to normally open?
In some instances the function of a solenoid valve can be changed from normally open (fail safe open) or normally closed (fail-safe closed) simply by changing the armature assembly.
Is Hardie now Irritrol?
Hydro Rain was bought by Hardie and the valve was rebranded to Hardie. Hardie also bought the Irritrol company, but kept it under the Irritrol name. Then Hardie sold their irrigation division to Toro, with the condition that the Hardie name be removed from all the irrigation products.
How does a normally closed solenoid valve work?
When a normally closed solenoid valve is not powered, the plunger is down, effectively sealing the valve and preventing the flow of liquid or gas. Once the normally closed solenoid valve is powered or energized, the magnetic field causes the plunger to rise.
How does a normally open solenoid valve work?
When a normally open solenoid valve is not powered, the plunger is down, which means that a flow is allowed through the valve. Once the coil on the plunger is energized, however, the magnetic field causes the plunger to rise. This effectively seals the valve, preventing the gas or liquid from flowing through.
Is Irritrol a good brand?
Offering the best in professional design and service, Irritrol is one of the leading suppliers of high-quality irrigation products and is certainly a brand you can trust.
Why are my sprinklers still running when turned off?
There are two reasons why sprinklers would continue to run with the controller Off or Unplugged: It’s possible your valves were opened manually. Locate your valve box(es) and turn the solenoid(s) clockwise until snug.
What causes irrigation valve to stay open?
Air Trapped in the Valve: The valves may have air trapped in them. A small bubble of air becomes trapped in the tiny water ports of the valve, this stops the water from flowing through the port. Since the water flowing through the port is what holds the valve diaphragm closed, the valve stays open.