DIG's 1/4" and 1/2" (17 mm) barbed shut-off valves are used for manual control of individual drip line, soaker hose, drip tubing or micro tubing. Easy to install without glue or clamps, the 1/4" shut-off valve (pack of 2), 1/2" shut-off valve (Each) are used for the installation of drip irrigation lateral lines. The 1/4" shut-off valve can be used with 1/4" micro tubing or micro line with .150 to .170 ID and the 1/2" shut-off valve can be used with 1/2" drip tubing or drip line with .570 to .600 ID. Features: Easy installation without glue or clamps Constructed of UV-resistant, non-corrosive, high-impact durable plastic Use for on/off and flow adjustment for 1/4" micro tubing, micro line, 1/2" drip tubing and drip line or a group of drippers Smooth opening and closing 1/4" Shut-Off Valve Specifications: Operating pressure: up to 30 PSI Recommended operating pressure: 10 to 30 PSI (25-PSI pressure regulator is recommended) Flow rates: up to 25 GPH Inlet and outlet size: 1/4" barb to fit micro tubing or micro line with .150 to .170 ID Materials: high-impact plastic 1/2" Shut-Off Valve Specifications: Operating pressure: up to 60 PSI Recommended operating pressure: 15 to 30 PSI (25-PSI pressure regulator is recommended) Inlet and outlet size: 3/4" FPT x 1/2" barb fits drip tubing or drip line with .570 to .600 ID 1/2" barb fits drip tubing or drip line with .570 to .600 ID Materials: high-impact plastic How to Use Drip irrigation shut-off valves function to provide flexibility in the installation of a drip irrigation system. The 1/4" and 1/2" shut-off valves are used to shut off individual drip lines or laterals as part of a drip irrigation layout. Use them with 1/4" micro tubing or micro line with .150 to .170 ID and 1/2" drip tubing or drip line with .570 to .600 ID. The valves provide the option of turning an individual line of 1/2" poly tubing or 1/4" micro tubing on or off without affecting the other lines on the system zone. To install the 1/4" or 1/2" shut-off valves, cut the micro tubing, drip tubing or drip line with a hand pruner, being careful to keep dirt from entering the line. Hold the shut-off valve in one hand and the end of the micro tubing, drip tubing or drip line in the other and force the tubing over the barb by wiggling it from side to side. Make sure that the tubing is pushed over the shut-off valve barb for a very tight fit. No glue or clamps are required.
