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HN Nexa Series
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| SEKO S.p.A. HN0 316L DOSING PUMP nexa SERIES-Hydraulic Double Diaphragm Technical data can be changed without notice. TD_HN0_SS_rev.2.2 1 of 4 nexa series includes plunger and hydraulic diaphragm dosing pumps designed in compliance with API 675 Standards; the conformity to the API Standards implies a “heavy duty” design, high safety and severe controls of the performances during the tests. The broad variety of heads execution offers a wide selection of dosing pumps to cover practically any application needs. In addition the full compliance with the ATEX European Directive gives the possibility to install these pumps in classified areas too. Mechanism Available in different sizes, they are mechanical return type, giving the maximum reliability in all working conditions. General Specifications: „h Low noise integral gearbox, worm type, oil bath lubricated „h Reduced energy consumption based on low friction rolling bearings design „h High flexibility multiple mechanism solution to permit different piston speeds (SPM) on the same group „h Micrometric stroke lenght adjustment both manually and/or automatically actuated. „h Automatic stroke length variation by electrical servomotor, pneumatic actuator or frequency converter „h Linearity and repeatability in compliance with API 675 Standards. „h Easy “on field” installation of electrical servomotor on manual stroke adjustment mechanism. Diaphragm Pumphead „h High capacity flexibility„³ On site easy volume changing by changing the piston cartridge „h Easy to change spares parts (all “one cartridge” solution). „h Maximum compatibility PTFE diaphragm „h Visual or remote diaphragm failure detection Technical characteristics „h Flow rates: from 0,06 to 5,17 lph @ 50 Hz „h Max Pressure: 200 bar „h Ambient temperature: -10 °C + 40 °C „h Max altitude: 1000 m (A.S.L.) „h Fluid operating temperature: -10 °C + 70 °C „h Viscosity up to 1000 cP (Higher on request) „h Stroke adjustment during operation from 0 to 100% „h Accuracy ± 1 % on the turndown ratio 10:1 „h Built-in overpressure valve „h Min NPSHr: 3 mwc „³ High suction capability „h Double diaphragm and diagnostic of the rupture „h Diaphragm duration up to 20.000 hours, depending of the application „h Multiheads (up to six) solutions „h API 675 compliance „h CE marking „h ATEX II 2 G c IIB T4 compliance „h Protection: IP 55 „h Epoxy painting at 125 micron

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| SEKO S.p.A. HN0 316L DOSING PUMP nexa SERIES-Hydraulic Double Diaphragm Technical data can be changed without notice. TD_HN0_SS_rev.2.2 2 of 4 PUMP KEY CODE

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| SEKO S.p.A. HN0 316L DOSING PUMP nexa SERIES-Hydraulic Double Diaphragm Technical data can be changed without notice. TD_HN0_SS_rev.2.2 4 of 4 Allowable loads referred to pump nozzles Fx 0.10 KN Mx 0.04 KNm Fy 0.12 KN My 0.04 KNm Fz 0.10 KN Mz 0.04 KNm DIMENSIONS [mm] EXTIMATED WEIGHT PUMP MODEL A B C D Kg (without motor) 1H06N02FC.. BSPP 1/4"F 144 144 282 30 1H08N02FC.. BSPP 1/4"F 144 144 282 30 1H10N02FC.. BSPP 1/4"F 144 144 282 30 1H12N02FC.. BSPP 1/4"F 149 149 279 30,5 Electric motor size 2 Poles Kw 4 Poles Kw 6 Poles Kw TEFC 1xM16x1.5 EExde 1xM25x1.5 E Kg E Kg 63 0.18 0.12 0.12(*)...

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