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Single-Stage Rotary Vane Pumps with Single
Phase Motor
nES40A
INSTRUCTION MANUAL
PUMP MODEL
nES40A
A35134880_A
edwardsvacuum.com
PRODUCT ITEM NUMBERS
A3513xxxx
Original instructions

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Table of Contents
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Summary of Contents for Edwards nES40A

  • Page 1 Single-Stage Rotary Vane Pumps with Single Phase Motor nES40A INSTRUCTION MANUAL edwardsvacuum.com PUMP MODEL PRODUCT ITEM NUMBERS nES40A A3513xxxx A35134880_A Original instructions...
  • Page 2 Copyright notice ©Edwards Limited 2022. All rights reserved. Trademark credit Edwards and the Edwards logo are trademarks of Edwards Limited, Innovation Drive, Burgess Hill, West Sussex RH15 9TW. Disclaimer The content of this manual may change from time to time without notice. We accept no liability for any errors that may appear in this manual nor do we make any expressed or implied warranties regarding the content.
  • Page 3: Table Of Contents

    8.1 Maintenance interval..........23 A35134880_A Page 3 02/2022 - ©Edwards Limited...
  • Page 4 15. Legal declarations........35 A35134880_A Page 4 02/2022 - ©Edwards Limited...
  • Page 5 Figure 6: Power sockets............20 A35134880_A Page 5 02/2022 - ©Edwards Limited...
  • Page 6: Safety And Compliance

    For the operation of this equipment “trained personnel” are: ▪ skilled workers with knowledge in the fields of mechanics, electrical engineering, pollution abatement and vacuum technology and ▪ personnel specially trained for the operation of vacuum pumps A35134880_A Page 6 02/2022 - ©Edwards Limited...
  • Page 7: Safety Symbols

    There is a risk of explosion when you do the task. Warning - Trip hazard There is a risk of slipping, tripping or falling as a result of spilled liquids, trailing cords and pipes or other low-lying objects. Warning - Wear hearing protection A35134880_A Page 7 02/2022 - ©Edwards Limited...
  • Page 8: Important Safety Information

    Make sure that you wear protective gloves before you touch any part during or just after the pump operation. Handle the pump only after it is vented and cooled down. A35134880_A Page 8 02/2022 - ©Edwards Limited...
  • Page 9: Hazards Caused By Materials And Substances

    If you operate the pump without oil or with incorrect rotation direction for a long time, it can destroy the pump and create dangerous situations. Never use discarded seals. Always use new seals for assembly. A35134880_A Page 9 02/2022 - ©Edwards Limited...
  • Page 10 100 mbar absolute can damage the pump or its motor and lead to oil leaks. Typically, these pumps are used on equipment requiring an inlet pressure usually lower than 30 mbar absolute in continuous operation. A35134880_A Page 10 02/2022 - ©Edwards Limited...
  • Page 11: Description

    Development applications like mass spectrometers, electronic microscopes, coating installations, etc. In normal operation, these pumps are operated below 30 mbar inlet pressure or at ultimate pressure with open gas ballast (for pumps having a gas ballast). Continuous duty is possible. A35134880_A Page 11 02/2022 - ©Edwards Limited...
  • Page 12: Non-Conforming Use

    Restricted, clogged or blocked exhaust filter or exhaust line ▪ Out of tolerance supply voltage ▪ Unsuitable, polluted or too old oil ▪ Too low oil level ▪ Too high ambient temperature ▪ Clogged fan hoods or impeded fresh air circulation. A35134880_A Page 12 02/2022 - ©Edwards Limited...
  • Page 13: Technical Data

    ISO category VG32. Use only the oil indicated on the nameplate and pump. In case other oils are used, we reject all responsibility if any problem occurs. Quantity Part number Fomblin Y VAC 06/6 1 kg H11301019 Fomblin Y VAC 06/6 3 kg H11301020 A35134880_A Page 13 02/2022 - ©Edwards Limited...
  • Page 14: Pumping Speed Curves

    6. Mounting 3 M8 x 7 4.2 Pumping speed curves Figure 2 Pumping speed curve at 50 Hz 1. Without gas ballast 1. Without gas ballast 2. With gas ballast 2. With gas ballast A35134880_A Page 14 02/2022 - ©Edwards Limited...
  • Page 15: Figure 3 Pumping Speed Curve At 60 Hz

    A35134880_A - Technical data Figure 3 Pumping speed curve at 60 Hz 1. Without gas ballast 1. Without gas ballast 2. With gas ballast 2. With gas ballast A35134880_A Page 15 02/2022 - ©Edwards Limited...
  • Page 16: Transportation

    Make sure that these have been installed safely. Use suitable lifting equipment. Make sure that all safety regulations are observed. Use only lifting devices appropriated to the pump weight. Check the nameplate. Do not use other pump elements than the lifting lugs as handles. A35134880_A Page 16 02/2022 - ©Edwards Limited...
  • Page 17: Installation

    10. Exhaust port DN13 6.1 Setting up The pump must be set up or mounted horizontally on a flat surface. Special mounting is not required. The pump must be levelled within a tolerance of ±2 degrees. A35134880_A Page 17 02/2022 - ©Edwards Limited...
  • Page 18: Connection To The System

    Note: The maximum exhaust pressure must neither exceed 1.15 bar absolute (0.15 bar relative) nor fall under atmosphere pressure minus 15 mbar. Corresponding pressure regulating devices must be installed by the user. A35134880_A Page 18 02/2022 - ©Edwards Limited...
  • Page 19: Electrical Connections

    The On/Off switch integrates a motor overload protection breaker, to be manually reset after an overload trip. Klixon The motor integrates a motor overload protection device (red knob on motor connection box) to be manually reset after an overload trip. A35134880_A Page 19 02/2022 - ©Edwards Limited...
  • Page 20: Pump Control And Power Supply Connection

    To fill in the oil, unscrew the oil fill plug and fill in until the oil level reaches the "MAX" marking beside the oil sight glass. Typically the whole 1 l oil can is used for the pump. Always check the proper oil level before you operate the pump. A35134880_A Page 20 02/2022 - ©Edwards Limited...
  • Page 21: Operation

    We recommend operating the pump in this mode for at least 30 minutes after completion of the process. A35134880_A Page 21 02/2022 - ©Edwards Limited...
  • Page 22: Working In Cycles In/Out

    This applies also to emergency cut-off switches. Close the gas ballast when the pump is switched off. A35134880_A Page 22 02/2022 - ©Edwards Limited...
  • Page 23: Maintenance

    Use only spare and consumables supplied by us. An overhaul is recommended every 3 years. After maintenance operations, make sure the device is in a safe condition before putting back into operation. A35134880_A Page 23 02/2022 - ©Edwards Limited...
  • Page 24: Check The Oil

    Oil mist escaping from the exhaust during operation indicates that the exhaust filter is probably clogged. Increased energy intake by the motor could also be the result of a soiled exhaust filter. A35134880_A Page 24 02/2022 - ©Edwards Limited...
  • Page 25: Clean The Gas Ballast Valve

    Clean the nozzle and check that the float itself oscillates free around its axle and that the valve is tight. ▪ Clean the float chamber of the oil casing. ▪ Re-assemble in the reverse sequence. A35134880_A Page 25 02/2022 - ©Edwards Limited...
  • Page 26: Fault Finding

    Pump does not reach the ultimate pressure Cause There is an external oil leak. Remedy Repair the pump. Cause Float valve does not close. Remedy Repair the valve. Refer to Check the float valve on page 25. A35134880_A Page 26 02/2022 - ©Edwards Limited...
  • Page 27 Set pump up correctly. Refer to Installation on page 17. Cause Cooler is dirty. Remedy Clean the cooler. Cause The ambient temperature is too high. Remedy Set up pump correctly. Refer to Installation on page 17. A35134880_A Page 27 02/2022 - ©Edwards Limited...
  • Page 28 Clean the nozzle. Check the tightness of the float valve. Refer to Check the float valve on page 25. Cause Oil level is too high. Remedy Drain the excess oil. Refer to Check the oil level on page 24. A35134880_A Page 28 02/2022 - ©Edwards Limited...
  • Page 29 24. Cause Oil filter is clogged. Remedy Change the oil filter. Cause Vane or bearing defective. Remedy Repair the pump. Contact us. Note: Never mount used seals. Always mount new seals. A35134880_A Page 29 02/2022 - ©Edwards Limited...
  • Page 30: Storage

    If the pump has been shelved for over one year, standard maintenance must be done and the oil must be exchanged too before the pump is put into service once more. We recommend that you contact the Service. A35134880_A Page 30 02/2022 - ©Edwards Limited...
  • Page 31: Disposal

    European, national and regional regulations concerning waste disposal need to be observed. Waste must only be transported and disposed of by an approved waste disposal vendor. A35134880_A Page 31 02/2022 - ©Edwards Limited...
  • Page 32: Service

    HS1, fill in the electronic HS2 form, print it, sign it, and return the signed copy to us. NOTICE: If we do not receive a completed HS2 form, your equipment cannot be serviced. A35134880_A Page 32 02/2022 - ©Edwards Limited...
  • Page 33: Accessories

    A35134880_A - Accessories 13. Accessories Table 3 Accessories Description Part number Adapter for tubing 71241608 A35134880_A Page 33 02/2022 - ©Edwards Limited...
  • Page 34: Spares

    We recommend to use these kits which have been defined to allow optimal maintenance or repair. Individual spare parts may need a longer delivery time. Table 4 Spares Description Part number Minor maintenance kit nES 40(EX)/40A A35900100 Exhaust filters nES 40(EX)/40A A35900400 A35134880_A Page 34 02/2022 - ©Edwards Limited...
  • Page 35 The product specified and listed below • Product: nES, Single Stage Rotary Vane Pumps, with and without motor (bareshaft) • Models: nES40, nES40A, nES65, nES100 • Pump family codes: A3510xxyy A3513xxyy A3530xxyy A3540xxyy xx: product variant (49 or 77: air cooled, 59: water cooled)
  • Page 36 You must retain the signed legal declaration for future reference This declaration becomes invalid if modifications are made to the product without prior agreement. Signed for and on behalf of Edwards Andries de Bock - VP Engineering François Bouillot - General Manager...
  • Page 37 ADDITIONAL LEGISLATION AND COMPLIANCE INFORMATION EMC (EU, UK): Class A/B Industrial equipment Caution: This equipment is not intended for use in residential environments and may not provide adequate protection to radio reception in such environments. RoHS (EU, UK): Material Exemption Information This product is compliant with the following Exemptions Annex III: •...
  • Page 38 材料成分声明 China Material Content Declaration 有害物质 Hazardous Substances 部件名称 六价铬 多溴联苯 多溴二苯醚 铅 汞 镉 Part name Hexavalent Polybrominated Polybrominated Lead Mercury Cadmium Chromium biphenyls diphenyl ethers (Pb) (Hg) (Cd) (Cr VI) (PBB) (PBDE) 铸铝及铝合金制品 Aluminium alloys o钢合金制品 Steel alloys 铜管管件...
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  • Page 40 edwardsvacuum.com...

Table of Contents