Pressure Switch 4/16

General Features • PA type pressure switches are designed to automatically start and stop booster and water pumps. • PA-V type ETNA pressure switches are manufactured to facilitate the initial start-up of air compressors under pressure and to ensure the evacuation of air in the pressure pipe when the compressor stops. • Pressure switches with relief are used in air compressors, and pressure switches without relief are used in water boosters. • Three-way safety adapter allows the manometer and safety valve to be mounted directly on the switch without the need for any other equipment. • The stopping pressure of PA-1 type pressure switches can be adjusted between 2.5 Atu and 5 Atu, and the operating pressure can be adjusted between 0.5 and 3.9 Atu, depending on the stopping pressure. • The stop pressure of PA-2 type pressure switches can be adjusted between 7 Atu and 11 Atu, and the operating pressure can be adjusted between 3 and 9 Atu, depending on the stop pressure. • The stopping pressure of PA-3 type pressure switches can be adjusted between 11 Atu and 16 Atu, and the operating pressure can be adjusted between 4 and 13 Atu, depending on the stop pressure. • The stopping pressure of the PA-4 type pressure switch can be adjusted between 4 Atu and 8 Atu, and the operating pressure can be adjusted between 1 and 7 Atu depending on the stop pressure. IT CAN BE USED BOTH AS SINGLE PHASE AND TRIPHASE.