Perma-Loc Tubing Coupling Valve. Size: 1/2". This fitting is used to connect two pieces of polyethylene tubing where on/off functionality is needed. Ball valve located in middle of coupling for easy on/off function. About Drip Depot Perma-Loc Drip Irrigation Fittings:Perma-Loc fittings are heavy duty reusable connectors, adapters and fittings for all your connection needs. They are very easy to use and require no special tools. Perma-Loc fittings are available for both Tubing and Tape. The Tubing connectors can be used on blank tubing as well as drip line. To use: Simply push tubing or tape over barbed end, then hand-tighten locking nut over tubing or tape for a permanent secure fit. To Remove: Just loosen locking nut, pull tube off and re-use as needed. Perma-Loc fittings look similar to traditional flange and locking nut plumbing connections; however, in most cases, they work differently. Unlike a typical locking nut, which comes off the fitting and slides over the tubing, a Perma-Loc locking nut is usually not removed from the fitting. The exception to this rule are some of the larger 3/4" and above tubing fittings. Select a video from above to see how the Perma-Loc drip irrigation tubing and tape fittings work. Perma-Loc SizeAcceptable Inside Tubing DiameterAcceptable Wall Thickness3/8 inch.510 to .580 inches.035 to .055 inches1/2 inch.590 to .630 inches.025 to .050 inches3/4 inch0.790 to 0.845 inches0.045 to 0.065 inches1 inch1.025 to 1.085 inches0.045 to 0.065 inchesAbout Drip Depot Perma-Loc Drip Irrigation Fittings:Perma-Loc fittings are heavy duty reusable connectors, adapters and fittings for all your connection needs. They are very easy to use and require no special tools. Perma-Loc fittings are available for both Tubing and Tape. The Tubing connectors can be used on blank tubing as well as drip line. To use: Simply push tubing or tape over barbed end, then hand-tighten locking nut over tubing or tape for a permanent secure fit. To Remove: Just loo
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