Edwards EH250FX Instruction Manual

Edwards EH250FX Instruction Manual

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A301-05-880
Issue A
Original Instructions
Instruction Manual
EH Mechanical Booster Pumps
For safe area applications

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Summary of Contents for Edwards EH250FX

  • Page 1 A301-05-880 Issue A Original Instructions Instruction Manual EH Mechanical Booster Pumps For safe area applications...
  • Page 2 Note: This declaration covers all product serial numbers from the date this Declaration was signed onwards. 16.06.2015, Burgess Hill Mr Peter Meares Date and Place Senior Technical Support Manager, General Vacuum This product has been manufactured using the Edwards quality management system...
  • Page 3: Table Of Contents

    4.2.1 Pre-start checks ......................23 4.2.2 Start-up ........................23 Shutdown ......................... 24 Maintenance ..................25 Safety information ......................25 Maintenance plan .......................26 © Edwards Limited 2014. All rights reserved. Page i Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 4 Check the oil levels .....................26 Inspect the pump connections ..................26 Change the pump oil ....................27 Lubricate the rear bearing (All EH250FX and EH500FX model pumps only) ........28 Overhaul the pump .....................29 Storage and Disposal ................31 Storage ........................31 Disposal ........................
  • Page 5 EH2600 and EH4200 spare parts ..................34 Associated publications Publication title Publication number Vacuum Pump and Vacuum Systems Safety Manual P400-40-100 © Edwards Limited 2014. All rights reserved. Page iii Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 6 A301-05-880 Issue A This page has been intentionally left blank. Page iv © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 7: Introduction

    The hydrocarbon EH pumps use hydrocarbon oils, such as Edwards Ultragrade 20. Versions of the EH pumps for use with PFPE (perfluoropolyether) oils are also available for vacuum systems in which enriched oxygen or other reactive or corrosive gases are pumped.
  • Page 8: All Eh250Fx And Eh500Fx Pump Variants

    A301-05-880 Issue A Figure 1 - All EH250FX and EH500FX pump variants 1. Terminal box 2. Shaft seal reservoir vented oil filler plug 3. Hydrokinetic drive/gearbox oil filler plug 4. Inlet flange 5. External evacuation point 6. End cover 7. Rotors 8.
  • Page 9: All Eh1200Fx, Eh2600 And Eh4200 Pump Variants

    9. Oil level sight glass (gear cover) † EH1200 pumps only. 10. Gear cover oil drain plug (under the pump) 11. Rotors © Edwards Limited 2014. All rights reserved. Page 3 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 10: General Construction

    Chemical & ATEX pumps This manual does not cover these applications. They are covered in publication number A301-51-880. Page 4 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 11: Technical Data

    0 to 5 x 10 EH4200 0 to 70 mbar 0 to 7 x 10 0 to 50 mbar 0 to 5 x 10 © Edwards Limited 2014. All rights reserved. Page 5 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 12: Recommended Primary (Backing) Pumps

    EH500FX 100 kg EH1200 151 kg EH1200FX 151 kg EH2600 405 kg EH2600FX 405 kg EH4200 485 kg EH4200FX 485 kg Page 6 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 13: Electrical Data

    11 kW EH4200 11 kW 11 kW Lubrication data Note: Edwards Safety Data Sheets for the oils and grease specified below are available on request. Table 6 - Lubrication data Recommended oil type Hydrocarbon pumps Ultragrade 20 PFPE pumps Fomblin YVAC 16/6...
  • Page 14: Cooling Water Data

    3/8 inch BSP male Vacuum connections: EH250 EH500 EH1200 EH2600 EH4200 Inlet ISO63 ISO100 ISO160 ISO160 ISO250 Outlet ISO40 ISO63 ISO100 ISO100 ISO100 Page 8 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 15: Materials Of Construction Of Components Exposed To Pumped Gases

    A301-08-934 EH500FX A302-07-945 A302-08-946 A302-07-934 A302-08-934 EH1200FX A305-07-945 A305-08-946 A305-07-934 A305-08-934 EH2600FX A307-07-945 A307-08-946 A307-07-934 A307-08-934 EH4200FX A309-07-945 A309-08-946 A309-07-934 A309-08-934 © Edwards Limited 2014. All rights reserved. Page 9 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 16: Eh250/Eh250Fx Dimensions (Mm)

    1. Lifting bolt 2. External evacuation port Note: Allow 25 mm around the pump exterior for variation in component dimensions and air cooling. Page 10 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 17: Eh500/Eh500Fx Dimensions (Mm)

    1. Lifting bolts 2. External evacuation port Note: Allow 25 mm around the pump exterior for variation in component dimensions and air cooling. © Edwards Limited 2014. All rights reserved. Page 11 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 18: Eh1200/Eh1200Fx Dimensions (Mm)

    A301-05-880 Issue A Figure 5 - EH1200/EH1200FX dimensions (mm) 1. Lifting bolts Page 12 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 19: Eh2600/Eh2600Fx Dimensions (Mm)

    A301-05-880 Issue A Figure 6 - EH2600/EH2600FX dimensions (mm) 1. Lifting bolts © Edwards Limited 2014. All rights reserved. Page 13 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 20: Eh4200/Eh4200Fx Dimensions (Mm)

    A301-05-880 Issue A Figure 7 - EH4200/EH4200FX dimensions (mm) 1. Lifting bolts Page 14 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 21: Installation

    Purge with an inert gas when shutting down the pumping system to dilute dangerous gases to safe  concentrations. Consult Edwards or the supplier for advice. © Edwards Limited 2014. All rights reserved. Page 15 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 22: Unpack And Inspect

    6. If the EH pump will not be used immediately, refit the protective covers. Store the EH pump in suitable conditions as described in Section 6.1. Page 16 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 23: Fill The Pump With Oil

    Ensure that the correct vented filler plug is fitted in the shaft seal reservoir. If using a non-vented plug, the reservoir will be pressurised and the oil sight glass may fracture. Edwards recommend filling the shaft seal reservoir so that the oil level is at the recommended oil level as shown in Figure 8, item 2.
  • Page 24: Gear Cover (All Eh1200, Eh2600 And Eh4200 Model Pumps Only)

    2. Fill the gear cover with oil until the oil level is at the middle of the reflector plate in the gear cover oil level sight glass (Figure 2, item 9). 3. Refit the oil filler plug. Page 18 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 25: Cooling Water Connections (All Eh1200, Eh2600 And Eh4200 Pumps Only)

    The motor must be correctly configured and the electrical connections must be correct for the electrical supply. If not, the motor can be damaged. © Edwards Limited 2014. All rights reserved. Page 19 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 26: Check The Direction Of Pump Rotation

    2, item 14): watch the motor coupling in the sight glass (Figure 8, item 7), switch on the EH pump for two or three seconds, then switch the EH pump off. Page 20 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 27: Connect The Pump Inlet And Outlet

    Connect the inlet of the EH pump to the vacuum system and connect the outlet of the EH pump to the backing pump and exhaust extraction/abatement systems, as required. Pump inlet and outlet connections are made with standard ISO flanges, Edwards trapped O-rings and (on the EH250FX pumps only) an Edwards co-seal.
  • Page 28: External Evacuation Of Hydrokinetic Drive/Gearbox (Optional)

    The hydrokinetic drive/gearbox may be evacuated using an external pump. A description of the connections required is beyond the scope of this manual. Contact the supplier or the nearest Edwards company for advice on the use of this facility. Page 22 ©...
  • Page 29: Operation

    5. Allow the EH pump to run for approximately fifteen minutes to achieve normal operating temperature. 6. Slowly open the pump inlet isolation valve (if fitted). © Edwards Limited 2014. All rights reserved. Page 23 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 30: Shutdown

    4. Open the backing pump air admittance valve (if fitted) and switch off the backing pump. 5. On all of the EH1200, EH2600 and EH4200 model pumps only: turn off the cooling water supply. Page 24 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 31: Maintenance

    EH pump may include oils, greases and seals. The pump may have overheated if it was misused, if it malfunctioned or if it was in a fire. Edwards Safety Data Sheets for fluorinated materials used in the pump are available on request: contact the supplier or Edwards.
  • Page 32: Maintenance Plan

    4. Check the electrical supply cables for damage. 5. Inspect all the vacuum pipelines for corrosion and damage. Check that all the vacuum connections are secure. Page 26 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 33: Change The Pump Oil

    Refit the oil drain plug and refer to Section 3.4 to refill the gear cover with oil.  Refit the oil filler plug.  © Edwards Limited 2014. All rights reserved. Page 27 Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 34: Lubricate The Rear Bearing (All Eh250Fx And Eh500Fx Model Pumps Only)

    A301-05-880 Issue A Lubricate the rear bearing (All EH250FX and EH500FX model pumps only) WARNING When removing the end cover, take note of the exact locations of the spacers and shims (Figure items 3 and 4) inside the end cover. These items must be refitted correctly in order to ensure that the rotor clearance settings remain correct.
  • Page 35: Overhaul The Pump

    A301-05-880 Issue A Overhaul the pump The EH pump can only be overhauled by Edwards service engineers. Contact the supplier or Edwards for advice. Figure 10 - Lubricate the rear bearing (EH250FX, EH500 and EH500FX pumps only) 1. Pump body 5.
  • Page 36 A301-05-880 Issue A This page has been intentionally left blank. Page 30 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 37: Storage And Disposal

    The instrument and associated cables are within the scope of the European Directive on Waste Electrical and Electronic Equipment, 2002/96/EC. Edwards offers European customers a recycling service for the instrument/cables at the end of the product's life. Contact Edwards for advice on how to return the instrument/cables for recycling. © Edwards Limited 2014. All rights reserved.
  • Page 38 A301-05-880 Issue A This page has been intentionally left blank. Page 32 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.
  • Page 39: Service And Spares

    The majority of these centres employ Service Engineers who have undergone comprehensive Edwards training courses. Order spare parts from the nearest Edwards company or distributor. When ordering, please state for each part required: Model and Item Number of the equipment ...
  • Page 40: Eh1200 Spare Parts

    The EH4200 must have an inlet screen fitted at all times. Ingress of large particles can cause the pump casing to fracture. Page 34 © Edwards Limited 2014. All rights reserved. Edwards and the Edwards logo are trademarks of Edwards Limited.

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