Accu-Set™ Pressure Regulator

PRODUCT: ICV Valves
SUBJECT: Accu-Set™ Pressure Regulator

For commercial sites where water pressure exceeds the limits of safe sprinkler operation, Hunter recommends the addition of the Accu-Set™ pressure regulator to the ICV valves.

Quite often on these types of sites, valves are located a great distance apart and a system pressure regulator won't work properly, due to the variances in pressure that occur in long pipe runs. Designed for projects where uniform pressure is desired regardless of inlet pressure variation, the Accu-Set pressure regulator is ideal for use on spray sprinkler zones to eliminate misting and fogging. The Accu-Set pressure regulator can be added on to existing 1", 1 1/2", and 2" ICV valves.

Installing the Accu-Set Pressure Regulator

1. Remove the solenoid from the Hunter ICV irrigation valve. (Also remove the flow control knob on the 1" ICV.) See Figure 1.
2. Thread the solenoid onto the Accu-Set.
3. Before threading, align the Accu-Set over the solenoid seat and position the Schrader valve portion of the Accu-Set towards the flow control handle.* See Figure 2.
4. Thread the Accu-Set into the solenoid area of the ICV.

Solenoid Figure 1

Schrader Valve Figure 2

Dial Figure 3

Setting the Accu-Set Pressure Regulator

1. Turn the clear dial on the top of the Accu-Set until the arrow underneath the clear dial is pointing to the desired downstream pressure. See Figure 3.
2. The white colored scale is for "PSI," the yellow colored scale is for "bar."

* The Schrader valve is for specifications requiring checking or setting pressure using a gauge, but the Accu-Set can easily be set without it. When using the Schrader valve to measure pressure, remember that the pressure reading will measure higher than the face of the Accu-Set (because the Accu-Set is adjusted for downstream pressure, while the Schrader valve is measuring pressure right at the ICV). The pressure will be 2 to 8 PSI lower in the pipe, depending on many factors such as flow and pipe size.