Reliable Performance: Pre-set outlet pressure regulation at either 40 psi (2.8 bar) or 50 psi (3.4 bar) provides worry-free protection for your irrigation installations. Durability: Tested to meet Rain Bird's high-quality standards.
Maintains constant outlet pressure at 30psi (2.1 bar). Spray nozzles perform best at 30psi.
The optimum operating pressure for most residential sprinkler heads is between 30 and 50 pounds per square inch (PSI). With correct water pressure, each head will perform the way they were designed, and the result will be even spray-patterns and efficient use of water.
A drip system that operates at high pressure (above 40 psi) may appear to be operating adequately, however it is more likely to develop problems over time.
The most common cause of low water pressure in sprinklers is the backflow preventer valves not opening fully. There are two main pipes in your backflow preventer – one horizontal and one vertical. Each pipe has a handle that can be turned to run with the line or across to open the valve.
One of the leading reasons for low sprinkler water pressure relates to the valves on your backflow preventer device. If you notice limited water pressure in your sprinkler system but normal water pressure inside your home, then the problem might be that your backflow preventer valves are not completely open.
For spray heads, it is 30 psi, with an operating range of 15 to 30 psi. For drip lines, this is about 20 psi, with an operating range of 15 to 30 psi. Remember, flow rate and pressure are directly related to one another. If pressure is not well-controlled, irrigation efficiency will suffer.
Drip irrigation systems are designed to work at an even lower pressure than is set for the house, with the optimal pressure for a drip system between 15 and 30 PSI.
Most residential water pressures are generally in the 40 - 80 PSI range. Under 40 is considered low, so you may need to boost pressure if installing an irrigation system. Over 80 is high, and many household water appliances may be at risk of damage over this range. A pressure reducing valve may be necessary.
For many sprinklers, the recommended operating water pressure ranges between 30-40 pounds PSI. A pressure regulator ensures that water pressure consistently stays within this recommended PSI range, regardless of the water pressure before it reaches the sprinkler.
Most spray sprinklers have recommended operating pressures between 30 pounds per square inch (psi) and 45 psi. Operating a sprinkler system at a pressure higher than recommended can cause significant water waste, due to excessive flow rates, misting, fogging, overspray, and uneven coverage.
You can operate 2 or 3 sprinklers at one time with 'Y's and extra hoses, depending on your water pressure. To run more than one sprinkler off the same faucet, attach a 'Y' to your faucet and run a hose to each sprinkler.
Specifications: Inlet Size: 1/2″ MPT (15/21) Nozzle Outlet Trajectory: 25° Precipitation Rate: 0.41 to 0.66 inches per hour (10 to 17 mm/h)
Do not stand over any irrigation components (pipes, sprinklers, and valves) during air blow out. Air pressure must not exceed 50 pounds per square inch (psi). Compressor must be capable of delivering 20 to 25 Cubic Feet Per Minute of air volume.
A typical drip irrigation system needs about 25 pounds per square inch (psi) of water pressure to function optimally, but many emitters rated at 25 psi will work well at pressures as low as 15 psi. The flow output will be slightly less than at 25 psi but any difference can be made up with longer watering times.
So, in most cases, a pressure regulator will be necessary to protect a drip system and help it work properly. That will ensure optimal results with your plants. Of course, if your water source can be delivered at a very low pressure, a regulator probably will not be necessary.
This will result in the remaining water draining into low spots and subjecting the system to freeze damage. Ideal pressures are in the range of 40 to 80 pounds per square inch (psi) for the air compressor with 80 psi being the maximum for rigid PVC pipe and 50 psi for polyethylene pipe (flexible black pipe).
Typically, though, a sprinkler system zone will boast 5 to 6 rotor heads and/or 8 to 10 spray heads.
Every brand of sprinkler is different, but there's typically a pressure valve on the top that you can turn manually to increase the pressure.
Turn the water flow up or down to affect the spray distance.
This is the easiest way to adjust how far your sprinkler sprays. Twist the knob of your water source to the right to increase the water flow. Turn it to the left to decrease water flow.
A common rule that is followed for obstructions within 18 inches of the sprinkler deflector is the “three times rule”. This requires sprinklers to be positioned away from obstructions a minimum or three times the maximum dimension of the obstruction.
I'd suggest trying energizing only one zone at a time, to see if just one zone behaves differently than having them all on at the same time. How many sprinklers do you have? If you have a bunch, and they are all on at the same time, then the pressure would be low, and likely not enough to "pop up" the heads.