nexa Series Standards Plunger and hydraulic double diaphragm metering pumps innovation > technology > future

nexa Series A line of plunger and hydraulic double diaphragm metering pumps designed according to the API 675 standards. Their possibility of construction with various materials allows these metering pumps to satisfy every liquid dosing and mixing application. Furthermore, their complete compliance with the ATEX standards even allows for these pumps to be installed in hazardous areas. Hydraulic double diaphragm metering pump in AISI 316L stainless steel Mechanisms Of a positive return typology and available in various sizes. Main characteristics: n Internal worm gearbox, oil bath lubricated with...

Flexibility In the standard configuration, the motor is horizontally mounted on the right, but the pumps can also be furnished with the motor horizontally mounted on the left or vertically mounted, depending on the installation requirements Standard version with horizontal motor Special version with vertical motor Modularity All nexa mechanisms, even of different sizes, can be easily combined to form metering units with certain significant construction advantages, simplifying assembly and installation. n The mechanisms are coupled together using joints with no exposed parts; the result is a compact...

nexa Series YN, TN, HN: Hydraulic double diaphragm heads The ideal solution for applications requiring high levels of operational safety and reliability: n Zero leakage; watertight construction for dosing toxic, corrosive and other hazardous liquids, for which the absence of leaks is fundamental n Protection against external pollutants which could contaminate the liquid being pumped if using plunger pumps n Double diaphragm, double protection; if one of the two diaphragms is damaged, the protection system immediately signals the anomaly; the pump is nevertheless permitted to continue to operate,...

Features Venting system Local visual indicator of the diaphragm rupture Standards Pressure relief valve Cartridge valves n Pressure up to 200 barg (higher upon request) n Flow rate up to 2650 l/h with a single head n Fluid temperature from -10 °C to 90 °C (from -40 °C to 150 °C upon request) n Contact materials - AISI 316L - PP - PVDF - Special configurations available upon request n Venting system Aside from guaranteeing automatic venting during operation, the venting system also facilitates the pump startup by favouring the air purge by means of a manual action. n Mechanical refilling system...

nexa Series Options Accessories n Automatic, electric or pneumatic adjustment or through an inverter n Flanged connections n Heated or cooled heads n Transmission of the diaphragm rupture signal n Flow rate calibrators n Pulsation dampers n Safety valves n Back pressure valves ATEX metering pump equipped with an electric actuator for flow rate adjustment 6 seko process & systems > metering pumps nexa series

Applications Industrial sectors n Chemical n Food & Beverages n Detergents n Power Generation n Environment n Oil & Gas n Petrochemical n Pharmaceutical n Paper n Textile Double diaphragm metering pump with PVDF head Plunger metering pump with AISI 316L stainless steel head innovation > technology > future 7

Italy / Headquarters n Seko Spa Via Salaria Km. 92,200 02010 S.Rufina - Rieti Phone: +39 0746 605801 Fax: +39 0746 607072 [email protected] Italy / Process & Systems Division n Seko Spa Via Di Vittorio, 25 - 20068 Peschiera Borromeo - Milano Phone: +39 02 97372411 Fax: +39 02 55301744 [email protected]@seko.com Brazil n Seko do Brasil Commercio de Sistemas de Dosagem Limitada 03170-050 São Paulo (SP) Phone: +55 11 2606 9878 Fax: +55 11 2606 9878 [email protected] www.sekobrasil.com.br China n Seko China Ltd 072750 Hebei Phone: +86 312 552 0904 Fax: +86 312 552 0901 [email protected]...