Edwards nXDS Series Instruction Manual
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Edwards nXDS Series Instruction Manual

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A735-01-840
Issue B
Instruction Manual
nXDS Pump Accessories

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  • Page 1 A735-01-840 Issue B Instruction Manual nXDS Pump Accessories...
  • Page 2 This page has been intentionally left blank.

  • Page 3: Table Of Contents

    Technical data ......................17 Installation ....................... 17 6.3.1 Install the exhaust nozzle .....................17 Mountable vibration isolators ..............19 Description ....................... 19 Technical data ......................19 © Edwards Limited 2013. All rights reserved. Page i Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 4 Inlet/exhaust dust filter components and dimensions ............. 9 Silencer dimensions (mm) .....................14 Nozzle and dimensions ....................17 Vibration isolator dimensions ..................19 Inlet/exhaust port conversion ..................23 Page ii © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 5 Chemical resistance conversion kit - checklist of components nXDS20i (A735-01-808) ......21 Ordering information ....................25 Checklist of components ....................25 Associated publications Publication title Publication number Vacuum pump and vacuum system safety P400-40-100 © Edwards Limited 2013. All rights reserved. Page iii Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 6 A735-01-840 Issue B This page has been intentionally left blank. Page iv © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 7: Introduction

    A735-01-840 Issue B Introduction Scope and definitions This manual provides installation, operation and maintenance instructions for the Edwards range of accessories for the nXDS pump range. The accessories are shown in Figure 1. The Item Numbers for the accessories are listed in the appropriate sections.

  • Page 8: Installation And Operation Safety

    The majority of these centres employ service Engineers who have undergone comprehensive Edwards training courses. Order spare parts and accessories from the nearest Edwards company or distributor. When ordering, please state for each part required: Model and Item Number of the equipment ...

  • Page 9: Accessories For Nxds Pumps - General View (O-Ring Seals Not Shown)

    2. Gas ballast adaptor 6. Vibration isolators 3a+b. Inlet/exhaust filter 7. Chemical resistance conversion kit 4. Silencer 8. Pump-to-controller cable (not shown) © Edwards Limited 2013. All rights reserved. Page 3 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 10 A735-01-840 Issue B This page has been intentionally left blank. Page 4 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 11: Gas Ballast Adaptor Blank

    Using a pin spanner (not provided), fit the adaptor blank and tighten to 6 Nm. Figure 2 - Gas ballast adaptor blank fitting Note: As a precaution, Edwards recommends that a complete vacuum leak check be performed following this installation. © Edwards Limited 2013. All rights reserved.
  • Page 12 A735-01-840 Issue B This page has been intentionally left blank. Page 6 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 13: Gas Ballast Adaptor

    The gas purge can be used to dilute flammable gases down to a safe level (Edwards recommends 1/4 of the Lower Explosive Limit).
  • Page 14 3 Nm. As a precaution, Edwards recommends that a complete a vacuum leak check be performed after this installation. Tip: Ensure the cooling fan operates correctly following the installation of the gas ballast adaptor.

  • Page 15: Inlet/Exhaust Filter

    Figure 4 - Inlet/exhaust dust filter components and dimensions B. Exhaust A. Inlet 3. Polyester element 1. Lid fastening clamp 4. Filter body 2. Filter lid © Edwards Limited 2013. All rights reserved. Page 9 Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 16: Installation

    4, item 1) and remove the lid (Figure 4, item 3) from the filter body (Figure 4, item 4). Remove the element for inspection. Page 10 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 17: Inspection And Replacement Of The Element

    Fitting the new element is the reverse of removal. Table 6 - NW25/NW40 filter element replacement kit Product description Ordering information 5 micron element A505-97-802 1 micron element A505-97-803 © Edwards Limited 2013. All rights reserved. Page 11 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 18 A735-01-840 Issue B This page has been intentionally left blank. Page 12 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 19: Silencer

    A pressure relief valve is not fitted to the silencer. 5.1.1 Application WARNING The Edwards nXDS silencer is not recommended for use with pumping hazardous substances. 5.1.2 Connections The nXDS silencer has been manufactured with an NW25 fitting to enable fitting to the nXDS pump exhaust (Figure item 4).

  • Page 20: Silencer Dimensions (Mm)

    A. 94 mm B. 81 mm 1. Top casing 2. Foam block 3. Polyester element 4. Bottom casing 5. Centring ring Page 14 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 21: Installation

    (item 2) and polyester element (item 3) which need to be inspected periodically. Edwards recommends both are replaced every 9000 hours of pump use. The silencer has been designed to handle 10 cc of tip-seal dust without affecting the performance of the pump. Replacement kit A505-97-800 contains both items.

  • Page 22: Inspection Of Elements

    Table 9 - Silencer element replacement kit Product description Ordering information Silencer spares kit A505-97-800 Page 16 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 23: Exhaust Nozzle

    If using a plastic hose, avoid sharp bends which may kink the hose and restrict the exhaust line. Edwards recommends using reinforced plastic hose. Refer to the installation section of the nXDS pump instruction manual.
  • Page 24 A735-01-840 Issue B This page has been intentionally left blank. Page 18 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 25: Mountable Vibration Isolators

    Mountable vibration isolators Description The Edwards mountable vibration isolators can be used to reduce the transmitted vibration from the pump to a mounting surface such as a system frame. The mountable vibration isolators have fixing holes to allow the pump to be bolted to the floor or system frame.

  • Page 26: Installation

    3. Using 5 mm bolts (not supplied), fix the vibration isolators bolted to the fixing surface or system frame. Edwards recommends the fitting of flexible tubing or bellows connections between the pump-inlet and the pump- outlet and the rest of the system, to prevent the transmission of stress to the vacuum pipelines and/or equipment.

  • Page 27: Chemical Resistance Conversion Kit

    Table 15 - Chemical resistance conversion kit - checklist of components nXDS20i (A735-01-808) Description Check () Valve pad (Chemraz) Valve spring 19.6ID O-ring NW25 stainless steel port NW25 port O-ring © Edwards Limited 2013. All rights reserved. Page 21 Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 28: Install The Chemical Resistance Conversion Kit

    (1) in reverse order. Torque the retaining bolts (2) to 3 Nm. A. Gas ballast port B. Exhaust valves Page 22 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 29: Inlet/Exhaust Port Conversion

    Figure 8 - Inlet/exhaust port conversion 1. Inlet port 2. Exhaust port As a precaution, Edwards recommends a complete a vacuum leak check after this installation. © Edwards Limited 2013. All rights reserved. Page 23 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 30 A735-01-840 Issue B This page has been intentionally left blank. Page 24 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

  • Page 31: Pump-To-Controller Cable

    The control cable is used to connect the nXDS pump directly to the RS485 or RS232 serial input on the control equipment or a PC, or alternatively, to an Edwards controller such as a TIC (Turbo Instrument Controller) or TAG (Turbo &...
  • Page 32 A735-01-840 Issue B This page has been intentionally left blank. Page 26 © Edwards Limited 2013. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

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