1, 2 NKV are fire fighting units that comply with UNI EN 12845 and UNI 10799 with vertical pumps designed for automatic systems equipped with sprinklers and/or hydrants. The parts in contact with the liquid are in AISI 304 stainless steel for NKV S or AISI 316 for NKV X. Standard round flanges (oval, loose, Victaulic, clamp on request). The mechanical seal is in standard E1=Graphite/Silicon Carbide/AISI 316/EPDM=BQGE. Upon request with FKM/Viton. The seal can be dismantled without removing the motor starting from 5,5 kW. Rigid coupling. They provide high heads (up to 140 meters). The groups are pre-assembled and tested in the factory. Control and protection panel equipped with connector prepared for the power supply also of a GSM modem (230 V protected by fuse). Motor protection fuses (type aM), the motor protection overcurrent relays are not allowed by the standard. Auxiliary circuit protection fuses (type Gg). Direct pump starters for models up to 15 kW, star/delta starters of 18,5 kW. 24 V auxiliary circuit transformer. Alarm relay with terminal block for status remoting and input connection terminal block for starting the system.