DIG Button Drip Emitters utilize a labyrinth-flow-path design producing a turbulent flow that ensures years of consistent watering with less chance of clogging. Available in flow rates of .5, 1 or 2 GPH and an operating pressure range of 15 to 25 PSI (the higher pressure the higher the flow rate), the button drip emitters can be found in packs of 5, 25, 50 and 100, each with a 1/4″ barbed inlet and small nipple outlet. Recommended for residential and commercial applications, these drip emitters are a low-cost solution for an individual plant, planter boxes, small to large pots, groundcovers, shrubs and trees on short runs, level terrain or low-pressure gravity feed drip irrigation installations, and areas where conventional sprinkler systems are not practical. The button drip emitter is made of two-piece construction and can be taken apart for cleaning, by twisting the top part of the drip emitter counter clockwise and pulling it apart.
|0.5 GPH Brown|
|W2205A||.5 GPH Button Drip Emitter (pack of 5) |
|W2205B||.5 GPH Button Drip Emitter (pack of 25) |
|W2205050||.5 GPH Button Drip Emitter (pack of 50) |
|1 GPH Black|
|W221A||1 GPH Button Drip Emitter (pack of 5) |
|W221B||1 GPH Button Drip Emitter (pack of 25) |
|W221050||1 GPH Button Drip Emitter (pack of 50) |
|2 GPH Green|
|W222A||2 GPH Button Drip Emitter (pack of 5) |
|W222B||2 GPH Button Drip Emitter (pack of 25) |
|W222050||2 GPH Button Drip Emitter (pack of 50) |
The .5, 1 and 2 GPH W22 Button Drip Emitters are reliable, low cost in-line drip emitters for use in small systems with short run plantings and on flat terrain. One of the main features of these drip emitters is their ability to operate under very low pressures with lower flow rates, making them ideal for gravity feed systems. The three models have preset flow rates of .5, 1 or 2 GPH at a nominal pressure of 15 PSI and can operate under a recommended pressure range of 15 to 25 PSI.
Install the drip emitters either directly into the drip tubing, or at the end of the micro tubing. Within the layout, we highly suggest that a minimum of two drip emitters should be placed on opposite sides of the plant, under the plant canopy, centered between the plant trunk and the plant canopy edge.
When using a single drip emitter, 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 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 few inches. Given the fact that 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 unless flow is adjusted or another drip emitter is added. We highly recommend installing 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’s 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.