SERIE NERO - Raita Environment

ISO 9001SERIE NEROOIL-LESS ROTARY VANE VACCUM PUMPSOIL-LESS ROTARY VANE COMPRESORSDRY RUNNING AIRCOOLED

The Rotary Vane PrincipleRotary vane vacuum pump working principleA rotor (2) positioned eccentrically in the pump cylindrical housing (1), free moving vanes (4) areinserted into numerous rotor slots (3), when the rotor turns, the centrifugal force throws the vanesagainst the cylindrical wall, and creating chamber between the rotor and cylinder, as the rotor continuesto turn, the chamber volume between blades keeps changing due to the rotor positionedeccentrically, from inlet (5) to outlet (6) port, the chamber volume will becomes bigger and thensmaller, when chamber volume becomes bigger, vacuum produced result from the rotation of vanes,thus air enters the chamber from the inlet port, when the chamber volume becomes smaller,due to air compressed, pressure produced at the outlet port.vacuum pumps are manufactured in accordance to:EN 1012-1 EN 1012-2 / Compressors and Vacuum pumpsEN ISO 12100-1 EN ISO 12100-2 EN 294 / Safety of machineryEN 60034 / Rotating electrical machines EN 60204-1 / Electrical equipment of machinesEN 61000-6-1 EN 61000-6-2 EN 61000-6-3 EN 61000-6-4 / Electromagnetic Compatibility

Model NV for vacuum applications down to anultimate pressure of 120/150 hPa.Model ND for max. overpressure duties up to1000 hPa (2000 hPa abs.)ND and NV rotary vane vacuum pumps workabsolutely oil free.Ambient operating environment :- ambient temperature : 0 ~ +40 °C- air temperature at the inlet : -5 °C ~ +40 °C- altitude of above sea level : 800 M (max.)- relative humidity : 80% (max.)Storage conditions :drydust-freelow-vibration (

Part no. Part name Qt.01Motor102Star-Tolerance ring103Rotor104Clamping disc105Spring washer106Hexagon socket head screw110Cylinder body111Lock washer212Cylinder body screw213Carbon vanes714Inlet plug114E (version ND 1010-1040 )Outlet plug115 (version ND 1010-1040....none)Screw plug120Cylinder cover121Cylinder cover screw422Gasket123Filter cartridge123E (version ND 1010-1040 )Filter cartridge124Pressure spring124E (version ND 1010-1040 )Pressure spring130Filter cover131 (version ND 1010-1040...... .2)Screw plug132Sealing ring133Filter cover screw334 (version NV 1010-1040 )Silencer valve134E (version ND 1010-1040 )Pressure relief valve140Radial fan141Plug142EEdge protection150Base151Vibration absorber452535455606162636465667071SleeveRubber elementWasherBase screwHoodRubber bushingSpace tubeHexagon socket set screwRing nutWasherHexagon socket base screwFront hoodHexagon socket hood screw4422111112212Replacement of spare parts and thereforeextraordinary maintenance of the vacuumpump must be carried out by the retailer’sspecialized and authorized personnel only.If any maintenance operations other thanthose expressly indicated in this handbookare carried out, the guarantee of vacuumpump will be immediately null and void andmanufacturer shall be relieved of all andany responsibility with regard to accidentsinvolving persons or things. Always orderspare parts from your regular retailer rememberingto indicate the vacuum pumpmodel, the part name and the serial number.

ND Version for CompressorDimensionUnit: mmLocking vacuum (or pressure) of vacuumpump shall higher than full loading vacuum(pressure), do not operate over loading (current)remarked on rating plate or rating label, toprevent motor damage, electric current over loadrelay, adjustable pressure relief or vacuum limitationvalve shall be installed to protect motor.Optional accessories-Air filterto the integral inlet filter when heavy dust loadsare being pumped.-Vacuum limitation valveto control inlet pressure when pump is used onvacuum duties (only NV version)-Pressure relief valveto control outlet pressure when pump is usedon pressure duties (only ND version)- Non-return valveto protect system against ingress of air oppositepressure, should pump stop for any reason.With pipelines exceeding 5 meters length, theinstallation of non-return valves are recommended.When the vacuum pump is switched off whileunder vacuum, gas may flow back into inletpipe. Install non-return valve or shut-off valvecan to avoid this.model A B C D E F G H J K L M N O P R TSND 1010 202 233 308 200 125 157 91 275 232 75 433 470 20 130 167 ∅ 9 PF 1/2ND 1016 202 233 327 200 125 157 91 275 232 75 458 495 20 130 167 ∅ 9 PF 1/2ND 1025 220 252 353 230 190 240 123 295 243 80 513 560 20 143 192 ∅ 9 PF 3/4ND 1040 220 252 400 230 208 240 153 295 243 80 570 620 20 143 223 ∅ 9 PF 3/4All rights reserved for technical specification changes without prior approval from any source outside Bacca, when considerednecessary based on our research and development.

Pressure relief valveVacuum limitation valveNon-return valve- Vacuum limitation valveto control inlet pressure when pump is used on vacuumduties (only NV version)- Pressure relief valveto control outlet pressure when pump is used on pressureduties (only ND version)- Non-return valveto protect system against ingress of air opposite pressure,should pump stop for any reason. With pipelines exceeding5 meters length, the installation of non-return valves arerecommended.When the vacuum pump is switched off while under vacuum,gas may flow back into inlet pipe. Install non-return valve orshut-off valve can to avoid this.