DIG’s new, innovative pressure compensating drip emitters with check valve are designed to produce a consistent flow rate over a wide range of pressures between 10 and 50 PSI and to simplify installation for home gardens and commercial landscapes in challenging terrain or complicated layouts. The drip emitters’ self-activated flushing and non-draining mechanism provides excellent clog resistance, stops water drain from the drip tubing lateral when the system is shutting off and overall supports water saving for a very efficient irrigation system. The PC drip emitters with check valves are available in .58 and 1 GPH with two models: PC-CV-06 (.58-GPH, pack of 10) and PC-CV-1 (1-GPH, pack of 10), each with a 1/4″ barbed inlet and small barbed outlet. Use for individual plants or groups of plants, groundcovers, shrubs and trees.
|PC-CV-1||1 GPH (3.8 L/H) color code black ||
|PC-CV-06||.58 GPH (2.2 L/H) color code brown ||
The Pressure Compensating drip emitter contain a silicon diaphragm that continuously adjusts to varying water pressures and at the same time allows particles to pass through the drip emitter’s water passage, providing reliable performance and a longer life. This method of flushing with a large flow path allows the drip emitters to operate at optimal flow rates under extreme conditions. In addition, the emitters have a special water-saving feature that eliminates water draining when the system is shut off at around 2.2 PSI. At this pressure, the PC drip emitters shut off completely, preventing any water drainage from the lateral. When the system is turned on again, the drip emitters simultaneously reopen at 4.4 to 4.5 PSI for precise control of water flow over the length of the lateral.
The two models of PC drip emitters with preset flow rates discharge the same amount of water under a pressure range of 10 to 50 PSI, allowing for higher uniformity and longer lateral runs on any topography. This feature allows the number of drip emitters on a single drip tubing to be maximized while maintaining an even flow rate from each emitter along the line.
When using single drip emitters, it is important to select the correct flow rate in order to achieve a wetted pattern shape that can cover at least 70% of the plant root zone. In sandy soil, water tends to drain quickly (gravitational force) with little lateral movement, so applying a higher flow rate over a given time period will produce a wider pattern. Using .5 GPH drip emitters for one hour will provide a smaller wetted area then using 1 GPH for the same time, due to the soil characteristics.
One of the most common installation errors in installing drip irrigation is using too few emitters. All too often, only a single emitter with a preset flow is placed at the base of a newly planted tree, shrub or rose. In clay soils, a single drip emitter can wet a three to four foot diameter; on sandy soils, the same layout using the same drip emitter will only wet an area of a few inches. Because plant roots can grow up to a few feet a year depending on the plant and location, after one year the diameter of the root system would be much larger than the area covered by the one drip emitter. A single drip emitter per tree or shrub could restrict root development as early as the first year after planting if flow is not adjusted or more drip emitters are not added. We recommend adding more than one drip emitter per plant, depending on plant size.
Basic installation recommendations for this product include first reviewing the area and then making a drawing of the garden or site with your preferred layout.
If automation is required, use one of DIG hose end timers or battery operated controllers. The ideal controller should have flexible scheduling and two to four start times per day for added flexibility.
Recommendations: Wrap all male pipe thread fittings with Teflon tape. Do not use pipe cement on the valve as it will damage the valve and void the warranty.
Start the installation from a faucet or hose thread