Welcome to the valve's support section. Hunter has a full valve line-up for different irrigation system designs, but most valves have the same fundamental functionality. In this section, you will find information on installation, maintenance, and troubleshooting a Hunter valve.
Water enters the valve from the system main line and exerts a force against the center of the valve’s diaphragm. A small orifice in the diaphragm allows the water to flow through
Choosing A Valve
When determining what might be the best valve for your particular needs, it is a good idea to keep these considerations in mind: Choose a valve that will operate at the pressure
Installing a Hunter Valve
Proper system design and placement of valves is an intricate part of a good irrigation design. Before installing an irrigation valve ensure you have a good irrigation design that
All Hunter Industries Anti-Siphon Valves should be installed above ground and at least 6 to 12 inches above the highest sprinkler to prevent back pressure or drainage.
Drip Zone Control Kit - Installation and Maintenance
PCZ/ACZ Drip Control Zone Kits: These pre-assembled kits bring together the popular PGV valve with both a filter and a pressure regulator, providing you with a complete control
There are two ways to bleed a zone valve for manual operation:
Servicing Jar-Top Valves
Here are some tips for valve repair.
Accu-Sync - Pressure Testing
The Accu-Sync compares the pressure on the top side of the diaphragm (main water supply pressure) to the downstream pressure. Pressure is adjusted by the unit forcing the
Installing the Accusync
Regulating pressure saves water and extends the life of the irrigation system. Water savings is achieved by operating each zone at the best pressure for that equipment and
Slow Closing Valve
Valve Bonnet Flow Control handle Bleed Screw Solenoid Diaphragm Supprt Ring Diaphragm Diaphragm Spring Most irrigation valves are
Valve Not Closing
The most common reason for a valve to remain on, or weep, is debris. New installations without proper flushing, recent mainline repair, or well water can cause debris to flow into
Valve Not Opening
There are several reasons why a valve might not open. Please review the following checklist: Water Turned OffInsufficient VoltageClogged Solenoid Exhaust PortsStation Not
External Valve Leak
A valve with an external leak can be a simple adjustment or may require further inspection. Review our simple checklist below. Crack in the body - This would require a valve
PGV-ASV - Leaking
If water is leaking from the vacuum breaker portion, there could be debris in the anti-siphon poppet. This would prevent the valve from sealing completely. The cap can easily be
JarTop - Leaking
The Hunter Jar-Top valve has two holes in the bonnet of the valve. The purpose of these two holes is to drain the water that could have collected around the diaphragm.
Weeping/Leaking when valve off
There are two reasons why a sprinkler will leak water when the system is supposed to be off. The most common reason is called “Low Head Drainage”.
Irrigation systems utilize a 24VAC electronic signal to initialize a valve's solenoid. Even though the system is low voltage, it is still always recommended a trained professional
These tables are designed for quick reference and are set up to provide maximum wire runs, given the information at the bottom of the table. Maximum one-way distance in feet
Maximum Solenoids per Station
Hunter controller's contain multiple sized transformers, therefore each controller has different activation capabilities. Here is a list of recommended
Quick Coupler Valves
Quick Couplers Pressure Loss in PSI Flow Model GPM HQ-3 HQ-33 HQ-44 HQ-5 5 0.8 1.0