DIG’s Plastic Screen Filters, models D55 and D56 with pipe thread, and model D57A with hose thread, are heavy-duty filters with 155-mesh screen elements, used to protect drip irrigation systems in residential and commercial installations. The screen filter protects the water passages of drip emitters and micro sprinklers from particles that may enter the irrigation system. They provide reliable, low-maintenance filtration and help to ensure trouble-free operation of both drip and micro sprinkler systems
|D55||Screen Filter 3/4 in. MNPT x 3/4 in. MNPT
|D56C||Screen Filter 1 in. MNPT x 1 in. MNPT
|D57A||Screen Filter 3/4 in. FHT x 3/4 in. MHT
All irrigation systems require proper maintenance and drip irrigation systems are no exception. If you use drip system, the major cause of most drip irrigation system failures is clogging of drip emitters, therefore, DIG, model D55 screen filter with pipe thread installed after the solenoid valve and before the pressure regulator and model D57A install to the faucet are one of the most important components in the micro irrigation system. The part # D55 with pipe thread and D57A with hose thread plastic screen filters are simple and economical methods to protect a drip irrigation system by preventing such clogging. Periodically the filter screen needs to be cleaned by opening the filter cover, removing the screen, and rinsing the screen under water.
Each filter contains a screen of 155 mesh, a measurement that tells how many holes the screen has per one square inch. A higher number means a finer mesh screen filter. A 155-mesh screen filter, for example, will collect smaller particles than a 120-mesh screen filter. Most micro irrigation systems require filters of 150 mesh or finer. DIG’s screen filters are designed with a 3/4” threaded cap on the bottom which can be used for adding a flush valve, useful for cleaning the filter while the system is on.
Screen filters are the most popular filtering devices used in drip irrigation systems. Proper filtration and clean water are essential to the efficient operation of drip irrigation systems. Without a good filter, debris, sand and other contaminants found in the water can plug drip emitters and micro-sprinklers, clog valves and lead to an overall significant reduction in system efficiency resulting in poor system performance. A screen filter will reduce maintenance and extend the life of a drip or micro-sprinkler system.
The point of connection to the water supply can start from an AC valve, anti-siphon valve, well, pump or rain barrel combined with gravity feed.
To the faucet, first connect a backflow device (model D45). If water quality is a concern, install DIG’s fine mesh 3/4″ filter with 155 mesh (model D57A), then a 25 PSI pressure regulator (model D46) and then a 3/4″ swivel adapter with screen (model C34).