Orbit WaterMaster Underground 51031 3/4-Inch Brass Quick Coupler Key

Quick coupler valves and keys are a common sight in golf courses, commercial properties, and even some residential applications, as they provide a time-tested way of easily accessing a pressurized line while keeping it safe and secure. The valve itself is made of durable brass, including the lid which prevents debris from entering. The serviceable and replaceable O-rings ensure a watertight seal between the valve body and the key.

The inlet threads of the valve are 3/4-inch female pipe thread (FPT), allowing for typical installation on a 3/4-inch riser from a 3/4-inch mainline (continuously pressurized) tee or elbow fitting. It is common practice to place a 7- or 10-inch round valve box, with a lid at grade level, over the valve for added protection and accessibility.

The double lug valve key, featuring a durable brass body and a steel handle, is designed to be inserted into the valve and turned clockwise to turn the water on, and counterclockwise to turn it off. The outlet threads of the key are 3/4-inch male pipe thread (MPT), enabling adaptation to hose thread with a 3/4-inch FPT x 3/4-inch MHT brass hose-to-thread fitting. It is important to apply pipe tape to the MPT threads on the quick coupler to ensure a secure connection.

These quick coupler valves and keys are intended for outdoor irrigation use with cold water only, providing a fast and easy connection to a pressurized line at any point in the landscape. Their durability, watertight sealing, and adaptability make them a reliable and convenient choice for a wide range of applications.

The durable brass construction of the valve, including the lid, ensures long-lasting performance and protection against debris entering the system. The serviceable and replaceable O-rings further contribute to the valve's longevity and ability to maintain a tight seal over time.

The double lug valve key, with its combination of brass and steel, is designed to withstand frequent use and provide a secure, easy-to-operate interface with the valve. The compatibility with 3/4-inch FPT fittings at the inlet and 3/4-inch MPT fittings at the outlet allows for seamless integration with various plumbing components and hoses.

In summary, quick coupler valves and keys offer a reliable and convenient solution for accessing pressurized lines in a wide range of outdoor irrigation applications, from golf courses and commercial properties to residential settings. Their durability, watertight sealing, and adaptability make them a popular choice for creating fast, easy connections to pressurized lines.

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