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Howden Roots Metric Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 22 / 32

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ISRB_2002 GEA 19171 Roots URAI 

Page 22 of 32

 

ISRB_2002 GEA 19171 Roots URAI.indd   22

17/09/2015   12:52

Содержание Roots Metric Series

Страница 1: ...n com Roots Universal RAI URAI DSL URAI G Metric Series Installation Operation Maintenance Manual www howden com Installation Operation and Maintenance Manual Roots Universal RAI URAI DSL URAI G Metri...

Страница 2: ...d operation See SAFETY PRECAUTIONS Install all equipment correctly Foundation design must be adequate and piping carefully done Use recommended accessories for operating protection Make sure both driv...

Страница 3: ...connections or taps for instruments thermometers and pressure or vacuum gauges at or near the inlet and discharge connections of the unit These along with a tachometer will enable periodic checks of o...

Страница 4: ...sults Handling of the equipment needs to be accomplished with care and in compliance with safe practices Unit mounting must be solid without strain or twist and air piping must be clean accurately ali...

Страница 5: ...nit is DIRECT COUPLED to its driver the driver RPM must be selected or governed so as not to exceed the maximum speed rating of the unit Refer to Table 1 for allowable speeds of various unit sizes A f...

Страница 6: ...base so that 2 3 of the total movement is available in the direction away from the unit and mount the assembly so that the face of the sheave is accurately in line with the unit sheave This position...

Страница 7: ...though WHISPAIR units operate at generally lower noise levels than conventional rotary blowers Specific recommendations on silencing can be obtained from your local Howden Roots distributor Discharge...

Страница 8: ...dip into the main oil sumps causing oil to splash directly on gears and into bearings and seals A drain port is provided below each bearing to prevent an excessive amount of oil in the bearings Seals...

Страница 9: ...ed by half or 3000 hours oil service life Normal life expectancy of petroleum based oils is about 2000 hours with an oil temperature of about 180 F 82 C As the oil temperature increases by increments...

Страница 10: ...is restarted gradually close the discharge unloading valve to apply working pressure At this point it is recommended that a pressure gauge or manometer be connected into the discharge line if not alr...

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Страница 12: ...idered expendable items to be replaced whenever drainage from the headplate vent cavity becomes excessive or when the blower is disassembled for any reason Some oil seal leakage may occur since an oil...

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Страница 32: ...improve our products and services and for over 160 years our world has revolved around our customers This dedication means our air and gas handling equipment adds maximum value to your operations We h...

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